A List of Delphacidae in the Ryukyu Islands (Hemiptera): University of the Ryukyus Repository

Author(s)

Takara, Tetsuo

Citation

琉球大学農家政工学部学術報告 = The science bulletin of

the Division of Agriculture, Home Economics & Engineering,

University of the Ryukyus(6): 1-11

Issue Date

1959-08

URL

http://hdl.handle.net/20.500.12000/24634

A List of Delphacidae in the Ryukyu

Islands (Hemiptera)

By

Tetsuo TAKARA

*

-Introduction

Although it seems to be very important to clarify such things as the

apecies, distributions, food habits, and appearing times of Delphacidae in

order to practice the effective and sufficient control on them, the only few

reports on Delphacidae found in the Ryukyu Islands are available.

Tamotsu

Ishihara reported, in 1949, some Araeopidae (=Delphacidae) in Japan,

Ryu-kyu Islands, and Formosa.

In his report, he presented only 4 species, such

as,

Ugyops vittatus, Numata sacchari, Delphacodes striatella, and Sogata

furcifera as the ones fouud in the Ryukyu Islands. Then, Tokuichi Shiraki

(1955) reported 3 species in addition to the above from Ryukyu Islands. So,

many chances for the further study on Delphacidae in the Ryukyus seen

to be still remained.

This report is arranged by depending entirely on the presently

availa-ble index and the specimens owned by the Agriculture, Home Economics

&

Engineering Division, University of the Ryukyus.

Here, 14 spec.ies of

Delphacidae found in the Ryukyus are presented in this report.

In publishing this report, the author wishes to express to Dr. Tamotsu

Ishihara my great appreciation for his advice and suggestion for my study.

1.

The Ryukyu Islands in the report include Okinawa, Miyako and

Yaeyama Islands which were previously referred to as Okinawa Prefecture.

2.

Food in the report are those existing in the Ryukyu Islands.

Enumeration of species

1.

Genus Ugyops Guerin

1834 Ugyops Guerin, Voy. Belanger, Zoo!., p. 477.

1)

Ugyops vittatus (Matsumura, 1905)

Jap. name: Shidasukeba-modoki.

1905 Bidis vittata (Jap. name: Shidasukeba-modoki) Matsumura, Trans. Sapporo Nat. Hist. Soc., 1 (1), p. 19 & 31, pI. 1, fig. 5 (Okinawa).

1913 Bidis vittata (Monsukeba-modoki) Matsumura, Thous. Ins. Jap., Add., 1, p. 58, pI. 6, fig. 7 (Okinawa).

1915 ]ugodina dictyophoroides Schumacher, Suppl. Ent., 4, p. 141. 1927 Bidis vittata Yashiro, List Ins. Roo-choo Is., p. 13 (Okinawa).

1930 Bidis vittata Matsumura, Illust. Thous. Ins. Jap., 1,p.54, pI.4, fig. 7 (Okinawa). 1931 Bidis vittata(Monsukeba-hagoromo) Matsumura, 6000 Illust. Ins. Japan-Empire, p.

1264 (Okinawa).

1932 Bidis vittata Matsumura, Illust. Common Ins. Japan, 4, p. 73 (Okinawa). 1933 Bidis vittata Kato, Three-col. Illust. Ins. Jap., ser. 4, pI. 14, fig. 1.

1943 Ugyops vittatus Esaki et Ishihara, Rep. Leaf-Hopp. Injur. Rice Plant Nat. Enem.,

(13), p. 5 (Okinawa-honto).

1949 Ugyops vittatus Ishihara, Sci. Rep. Matsuyama Agr. ColI., (2), p. 9, pI. 1, figs. 1-4 (Okinawa).

1951 Ugyops vittatus Ishihara, Shin Konchu, 4 (12), p. 39, fig. 6 (Okinawa).

Food:

Polypodiaceae

Pteridis

sp. (Matsumura) (=?

Pteris

sp.).

No specimens examined

(Not collected).

Local distr.:

Okinawa-jima (Matsumura).

Foreign distr.:

Hachijo Is., Bonin Is., Formosa, Botel-Tobago.

2.

Genus Tropidocephala Stal

1853 Tropidocephala Stlil, Ofv. Ak. Forh., 10, p. 266.

2) Tropidocephala nigra (Matsumura, 1900)

Jap. name: Kurokobu-unka. 1900 Conicoda nigra Matsumura, Ent. Nachr., 26, p. 261.

1907 Tropidocephala nigra Matsumura, Ann. hist.-nat. Mus. Hungar., 5, p. 63, pI. 2, figs. 3et 9.

1932 Tropidocephala nigra (Kurokobu-unka) Esaki, Iconogr. Ins. Jap., p. 1782, fig. 3521.

Eood:

Unknown.

Specimens examined:-Okinawa-jima:

5 Exs., 11. V. 1959 (T. Takara et

K. Kayama).

Local distr.:

Okinawa-jima (hab. nov.).

Foreign distr.:

Japan.

3.

Genus Purohita Distant

1906 Purohita Distant, Fauna Brit. India, Rhynch., 3, p. 470.

3)

Purohita taiwanensis Muir, 1914

A List of Derp.hacidae in the Ryukyu Islands (Hemiptera) 3

1914 Purohita taiwanensis Muir, Proc. Haw. Ent. Soc., 3, p. 52 (Formosa).

1958 Purohita taiwanensis Takara, Kontyu, 26 (2), p. 83 (Okinawa-jima, Ishigaki-jima, Iriomote-jima).

Food: Gramineae-Bambusa vulgaris

Schrad. (Daisanchiku),

Pleioblas-tus simonii

Nakai (Medake).

Specimens examined:-0kinawa-jima:

10 Exs., 30. VII. 1955 (T. Takara).

Ishigaki-jima: 10 Exs., 21. IX. 1954 (S. Asato).

Iriomote-jima: 5 Exs., 10.

IX. 1955 (T. Takara).

Local distr.:

Okinawa-jima, Ishigaki-jima, Iriomote-jima.

Foreign distr.:

Formosa.

Larvae can be found almost year round.

The numbers of imagos are

seen especially in the period ranging from April to September. This species

can be found rarely on

Pleioblastus simonii

and heavily on

Bambusa

vul-garis.

4.

Genus Perkinsiella Kirkaldy

1903 Perkinsiella Kirkaldy. Entomologist, 36, p. 170.

4)

Perkinsiella saccharicida

Kirkaldy, 1903

Jap. name: Sato-no-ushiunka, Kurofu-tsunounka. 1903 Perkinsiella saccharicida Kirkaldy, Entomologist, 36, p. 179.

1917 Perkinsiella saccharicida (Sato-no-ushiunka) Matsumura, App. Ent., form. ser., p. 378 (Formosa).

1939 Perkinsiella saccharicida (Kurofu-tsunounka) Takano et Yanagihara, Manual For-mosa Ins. Injur. Sugar-cane, p. 121 (Okinawa).

1958 Perkinsiella saccharicida Takara, Sci. Bull. Agr. Home Econ. & Engi. Div. Univ. Ryukyus, (5), p. 14 (S. Daito-jima, N. Daito-jima).

1958 Perkinsiella saccharicida Takara, Ryukyu Togyo Shinkokaiho, (3), p. 34 (Okinawa-jima, Daito-(Okinawa-jima, Miyako-jjma, Ishigaki-(Okinawa-jima, Iriomote-jima).

Food: Gramineae-Saccharum officinarum

L.

Specimens examined:-

Okinawa-jima: 7 Exs., 10. V. 1956 (T. Takara).

Miyako-jima: 6 Exs., 18. IX. 1955 (S. Asato). Ishigaki-jima: 5 Exs., 6. IX.

1955 (T. Takara). Iriomote-jima: 5 Exs., 10. IX. 1955 (T. Takara).

Local distr.:

Okinawa-jima, Daito-jima, Iheya-jima, Kume-jima,

Miyako-jima, Ishigaki-Miyako-jima, Iriomote-jima.

Foreign distr.:

Formosa, Java, New Guinea, Fiji, Hawaii, S. Africa,

etc.

Both imagoes and larvae are found almost year round, and, sometimes,

the enormous of them are seen at the particular areae.

They are situated

more heavily at mountain valleys than at fields.

As sugar canes are

culti-vated at the broad areae of the country, the writer is pretty sure, judging

1935 1935 1943

from the occurring situation of the species, that they are well spreaded all

over the Ryukyus.

5.

Genus Numata Matsumura

1935 Numata Matsumura, Ins. Mats., 9 (4), p. 139.

5) Numata saeehari (Matsumura, 1910)

Jap. name: Sato-no-usuirounka, Sato-no-nagaunka.

1910 Stenocranus sacchari (Sato-usuirounka) Matsumura, Schad. iitz. Ins. Zuckerrohr Formosa, p. 16 et 29.

1935 Numata sacchari Matsumura, Ins. Mats., 9 (4), p. 139. 1935 Unkana sacchari Matsumura, Ibid., 10 (1-2), p. 73.

1935 Unkana sakaguchii Matsumura, Ibid., 10 (1-2), p. 73 (Naha).

1943 Unkanella sakaguchii Esaki et Ishihara, Rep. Leaf-Hopp. Injur. Rice Plant Nat.

Enem., (13), p. 22 (Okinawa-honto).

1949 Numata sacchari Ishihara, Sci. Rep. Matsuyama Agr. Col!., (2), p. 35, p!. 6, figs.

71-75 (Ryukyu).

1958 Numata sacchari Takara, Ryukyu Togyo Shinkokaiho, (3), p. 35 (Okinawa-jima).

Food: Gramineae-Saccharum ojficinarum

L.

?

No specimens examined

(Not collected).

Local distr.:

Okinawa-jima (Matsumura).

Foreign distr.:

Formsa.

6.

Genus Himeunka Matsumura et Ishihara

1945 Himeunka Matsumura et Ishihara, Mushi, 16, p. 70.

6)

Himeunka tateyamaella (Matsumura, 1935)

Jap. name: Hime-unka.

Unkana tateyamaella Matsumura, Ins. Mats., 9 (4), p. 135. Unkana kushiana Matsumura, Ibid., 10 (1-2), p. 72.

Unkanella tateyamaella Esaki et Ishihara, Rep. Leaf-Hopp. Injur. Rice Plant Nat.

Enem., (13), p. 21.

1943 Unkanella kushiana Esaki et Ishihara, Ibid., (13), p. 22. 1945 Himeunka kushiana Matsumura et Ishihara, Mushi, 16, p. 70. 1945 Himeunka tateyamaella Matsumura et Ishihara, Ibid., 16, p. 71.

1955 Hime-unka Shiraki, Shin Konchu, 8 (1), p. 35 (Okinawa-jima).

Food:

Unknown.

No specimens examined

(Not collected).

Local distr.:

Okinawa-jima (Shiraki).

Foreign distr.:

Japan.

7.

Genus Delphaeodes Fieber

A List of De1phacidae in the Ryukyu Islands (Hemiptera)

7)

Delphacodes striateIIa

(Fallen, 1826)

5

Jap. name: Hime-tobi-unka.

1826 Delphax striatella Fallen, Hem. Suec. Cicad., p. 75.

1842 Liburnia striatella Sahlberg, Acta. Soc. Sci. Fenn., 1, p. 435. 1854 Delphax notula Stal, Ofv. Ak. Forh., 11, p. 192.

1900 Liburnia devastans Matsumura, Ent. Nachr., 26 (17), p. 262. 1900 Liburnia nipponica Matsumura, Ibid., p. 262.

1900 Liburnia minonensis Matsumura, Ibid., p. 263. 1900 Liburnia giffuensis Matsumura, Ibid., p. 264. 1900 Liburnia akashiensis Matsumura, Ibid., p. 266. 1900 Liburnia maikoensis Matsumura, Ibid., p. 266.

1908 Delphax giffuensis Oshanin, Verz. Pala. Hem., 2 (2), p. 264. 1908 Delphax 11ipponica Oshanin, Ibid., p. 314.

1908 Delphax minonensis Oshanin, Ibid., p. 330. 1908 Delphax akashiensis Oshanin, Ibid., p. 330. 1908 Delphax maikoensis Oshanin, Ibid., p. 330.

1917 Delphacodes striatella Muir, Proc. Haw. Ent. Soc., 3 (4), p. 334. 1931 Liburnia striatella Matsumura, 6000 Illust. Ins. Japan-Empire, p. 1269. 1932 Delphacodes striatella Esaki, Iconogr. Ins. Jap., p. 1785, fig. 3527 (Ryukyu). 1934 Delphacodes striatella Okajima, Bull. Kagoshima Imp. Coil. Agr. & Fore., Ded.

Twenty-fifth Anni., 1, p. 551 (Okinawa).

1936 Delphacodes striatella Esaki, Agr. & Hor., 11 (9), p. 2182 (Ryukyu).

1943 Delphacodes striatella Esaki et Ishihara, Rep. Leaf-Hopp. Injur. Rice Plant Nat.

Enem., (13), p. 31 (Ryukyu).

1949 Delphacodes striatella Ishihara, Sci. Rep.Matsuyama Agr. Call., (2), p. 49. pI. 9,

figs. 113-116 (Ryukyu Is.).

1951 Delphacodes striatella Ishihara, Shin Konchu, 4 (13), p. 38 (Ryukyu).

1952 Delphacodes striatella Esaki et Ishihara, Iconogr. Ins. Jap., p. 316, fig. 851

(Ryu-kyu).

1954 Delphacodes striatella Shiraki Cat. Injur. Ins. Ryukyu Is., p. 26 (Okinawa Is.,

Ishigaki Is.).

1955 Delphacodes striatella Takeuchi, Colo. Illust. Ins. Japan, p. 65, pI. 23, fig. 354

(Ryukyu).

1958 Delphacodes striatella Takara, Ryukyu Togyo Shinkokaiho, (3), p. 35

(Okinawa-jima, Miyako-(Okinawa-jima, Ishigaki-(Okinawa-jima, Iriomote-jima).

Food:

Gramineae-Oryza

sativa L.,Saccharum officinarum

L.

Specimens

examined:--okinawa-jima: 3 Exs., 16. III. 1957 (T. Takara).

Miyako-jima: 2 Exs., 18. IX. 1955 (S. Asato). Ishigaki-jima: 3 Exs., 6. IX.

1955 (T. Takara). Iriomote-jima: 2 Exs., 10. IX. 1955 (T. Takara).

Local distr.:

Okinawa-jima, Miyako-jima, Ishigaki-jima, Iriomote-jima.

Foreign distr.:

Japan, Korea, Formosa, Philippines, Europe, etc.

8) Delphacodes terryi Muir, 1917

Jap. name: Haikibi-unka.

1917 Delphacodes terryi Muir, Proc. Haw. Ent. Soc., 3, p. 334.

Food: Gramineae-Panicum repens

L.

?

No specimens examined

(Not collected).

Local distr.:

Okinawa-jima (Shiraki).

Foreign distr.,

Japan (Kyushu), Formosa, Java, Philippines.

9)

Delphacodes albovittata

(Matsumura, 1900)

lap. name: Sesuji-unka.

1900 Dicranotropis albovittata Matsumura, Ent. Nachr., 26. p. 269. 1915 Delphax albovittata Suzuki, List Spec. Hanazono Ent. Inst., p. to.

1917 Liburnia albovittata Matsumura, App. Ent., form. ser., p. 379, pI. 15, fig. 3. 1932 Sogota albovittata Esaki, Iconogr. Ins. ]ap., p. 1784, fig. 3526.

1945 Delphacodes albovittata Matsumura et Ishihara, Mushi, 16, p. 61, fig. 52.

1955 Sesuji-unka Shirki, Shin Konchu, 8 (1), p. 35 (Okinawa-jima).

Food:

Gramineae-Oryza

sativa

L. ?

Specimens examined:-

Okinawa-jima: 2 Exs., 5. IV. 1958 (T. Takara).

Local distr.:

Okinawa-jima.

Foreign distr.:

Japan, Korea, Formosa, Botel-Tobago, China, India, etc.

8.

Genus

Sogata

Distant

1906 Sogata Distant, Fauna Brit. India, Rhynch., 3, p. 471.

10)

Sogata furcifera

(Horvath, 1899)

lap. name: Sejiro-unka.

1899 Delphax furcifera Horvath, Termes. Fiizetek., 22, p. 372. 1900 Liburnia furcifera Matsumura, Ent. Nachr., 26, p. 262'

1905 Liburnia albolineosa Fowler, BioI. Cent.-Amer. Hom., 1, p. 135. 1907 Delphax kolophon Kirkaldy, Haw. Sugar Plant Ass., Bull., 3, p. 159. 1912 Sogata distincta Distant. Ann. Mag. Nat. Hist., 8 th ser., 9. p. 191. 1912 Sogata pallescens Distant, Ibid., p. 192.

1917 Opiconsiva colorata Distant, Trans. Linn. Soc. London, Zoo!., 17 (3), p. 301. 1917 Opiconsiva balteata Distant, Ibid., p. 302.

1917 Opiconsiva gloriosa Distant, Ibid., p. 302. 1917 Opiconsiva insularis Distant, Ibid., p. 303. 1917 Opiconsiva derelicta Distant, Ibid., p. 303.

1921 Megamelus furcifera Muir, Proc. Haw. Ent. Soc., 4 (3), p. 486.

1924 Sogata furcifera Muir et Giffard, Haw. Ent. Sugar Plant Ass., Bull., 15, p. 13. 1927 Delphax furcifera Yashiro, List Ins. Roo-choo Is., p. 13 (Okinawa).

1927 Liburnia furcifera Yashiro, Ibid., p. 13 (Okinawa).

1929 Delphacodes albolineosa Osborn, ]. Dep. Agr. Porto Rice, 13, p. 111.

1931 Delphacodes furcifera Esaki et Hashimoto, Rep. Leaf-Hopp. Injur. Rice Plant Nat.

Enem., (2), p. 5.

1932 Sogota furcifera Esaki, Iconogr. Ins. ]ap., p. 1784, fig. 3525 (Ryukyu).

1934 Sogota furcifera Okajima, Bull. Kagoshima Imp. Coil. Aar. & Fore., Ded., Twenty-fifth Anni., 1, p. 553 (Okinawa).

A List of Delphacidae in the Ryukyu Islands (Hemiptera) 7 1939 Sogota furcifera Esaki, Hori et Yasumatsu, Ins. Jap. Illust. Icon. Color., p. 67

(Ryukyu).

1939 Sogota furcifera Yashiro, App. Ent., 2 (3), p. 119 (Okinawa-jima).

1939 Sogota furcifera Takano et Yanagihara, Manual Formosa Ins. Injur. Sugar-cane, p.

120 (Okinawa).

1940 Sogota furcifera Yashiro, Agr. & Hort., 15 (12), p. 2429 (Okinawa).

1943 Sogata furcifera Esaki et Ishihara, Rep. Leaf-Hopp. Injur. Rice Plant Nat. Enem.,

(13), p. 26 (Ryukyu).

1943 Sogota furc/fera Miwa, List Injur. Ins. Formosa, p. 78 (Okinawa).

1949 Sogata furcifera Ishihara, Sci. Rep. Matsuyama Agr. ColI., (2), p. 63, figs. 169-171 (Ryukyu Is.).

1951 Sogata furcifera Ishihara, Shin Konchu, 4 (13), p. 41 (Ryukyu).

1954 Sogata furc/fera Shiraki, Cat. Injur. Ins. Ryukyu Is., p. 26 (Okinawa Is., Ishigaki

Is.).

1958 Sogata furclfera Takara, Sci. Bull. Agr. Home Econ. & Engi. Div. Univ. Ryukyus, (5), p. 14 (S. Daito-jima).

1958 Sogata furcifera Takara, Ryukyu Togy6 Shink6kaiho, (3), p. 35 (Okinawa-jima,

Miyako-jima, Ishigaki-jima, Iriomote-jima).

Food: Gramineae Oryza sativa L., Saccharum officinarum L.

Specimens examined: Okinawa-jima: 10 Exs., 16. III. 1957 (T. Takara).

Miyako-jima: 5 Exs., 14. IX. 1955 (T. Takara). Ishigaki-jima: 8 Exs., 6. IX.

1955 (T. Takara).

Iriomote-jima: 6 Exs. 10. IX. 1955 (T. Takara).

Kume-jima: 3 Exs., 20. II. 1957 (T. Takara).

Local distr.: Okinawa-jima, Iheya-jima, Izena-jima, DaitO-jima,

Toka-shiki-jima, Zamami-jima, Kume-jima, Miyako-jima, Ishigaki-jima,

Iriomote-jima, etc.

Foreign distr.; Japan, Korea, Siberia, China, Formosa, Philippines,

Sumatra, Indo-china, Ceylon, India, N. Africa, N.America, etc.

This species is important one as the one of the injurious insects of rice

plant in the Ryukyu Islands. They are found prevalently in the paddy rice

fields located at mountain valleys.

Damages caused by them are severe

during August and September.

9.

Genus Nilaparvata Distant

1906 Nilaparvata Distant, Fauna Brit. India, Rhynch., 3, p. 473.

11)

Nilaparvata

lugens (SHil, 1854)

Jap. name: Tobiiro-unka.

1854 Delphax lugens Stal, Ofv. Ak. Forh., p. 11.

1863 Liburnia sordescens Motschulsky, Bull. Soc. Nat. Moscou, 36, p. 109. 1906 Delphax oryzae Matsumura, List Iniur, Ins. Jap., p. 13 (nom. und.). 1906 Nilaparvata greeni Distant, Fauna Brit. India, Rhynch., 3, p. 473. 1906 Kalpa aculeata Distant, Ibid., p. 474.

1907 Delphax ordovix Kirkaldy, Ibid., p. 152. 1907 Delphax parysatis Kirkaldy, Ibid., p. 153.

1917 Delphacodes anderida Muir, Proe. Haw. Ent. Soc., 3, p. 335.

1924 Nilaparvata lugens Muir et Giffard, Haw; Sugar Plant Ass., Bull., 15, p. 16. 1930 Liburnia oryzae Esaki et Hashimoto, Rep. Leaf-Hopp. Injur. Riee Plant Nat. Enem.,

(l), p. 4.

1931 Delphacodes oryzae Esaki et Hashimoto, Ibid., (2), p. 5. 1932 Nilaparvata oryzae Esaki et Hashimoto, Ibid., (3), p. 4.

1934 Nilaparvata oryzae Okajima, Bull. Kagoshima Imp. ColI. Agr. & Fore., Ded. Twenty-fifth Anni., 1, p. 552 (Okinawa-jima).

1935 Hikona formosana Matsumura, Ins. Mats., 9, p. 139.

1939 Nilaparvata oryzae Yashiro, App. Ent., 2 (3), p. 119 (Okinawa-jima). 1940 Nilaparvata oryzae Yashiro, Agr. & Hart., 15 (12), p. 2429 (Okinawa). 1954 Nilaparvata lugens Shiraki, Cat. Injur. Ins. Ryukyu Is., p. 26 (Okinawa Is.). 1958 Nilaparvata lugens Takara, Ryukyu Togyo Shinkokaiho, (3), p. 35 (Okinawa-jima,

Ishigaki-jima, Iriomote-jima).

Food: Gramineae-Oryza sativa L., Saccharum officinarum L.

Specimens examined:-Okinawa-jima:

4 Exs., 16. III. 1957 (T. Takara).

Tokashiki-jima: 2 Exs., 15. VIII. 1955 (T. Takara).

Ishigaki-jima: 3 Exs.,

6. IX. 1955 (T. Takara).

Iriomote-jima: 4 Exs., 10. IX. 1955 (T. Takara).

Local distr.:

Okinawa-jima, Tokashiki-jima, Ishigaki-jima,

Iriomote-jima.

Foreign distr.:

Japan, Korea, Formosa, S. China, Philippines, Malay,

Java, Ceylon, India, etc.

10.

Genus Tarophagus Zimmerman

1948 Tarophagus Zimmerman, Ins. Hawaii, 4, p. 245.

12)

Tarophagus proserpina

(Kirkaldy, 1907)

Jap. name: Taroimo-unka.

1907 Megamelus proserpina Kirkaldy, Haw. Sugar Plant Ass., Bull., 3, p. 147.

1920 Liburnia (Delphax) colocasiae Matsumura, Manual Jap. Injur. Ins., form. ser., p. 564.

1958 Tarophagus proserpina Takara, Sci. Bull. Agr. Home Eeon. & Engi. Div. Univ. Ryukyus, (5), p. 14 (S. Daito-jima).

Food:

Araceae-Colocasia

esculentum

Schott var. (Mizuimo).

Specimens examined:

Okinawa-jima: 10 Exs., 5. IV. 1957 (T. Takara).

Local distr.:

Okinawa-jima (hab. nov.), S. Dait8-jima (Takara).

Foreign distr.:

Formosa, Micronesia, Philippines, Java, Australia,

Ha-waii, etc.

Both imagoes and larvae can be found all year round, main period of

occurrence being from May to August. Sometimes, enormous numbers of

them are found at the particular areae.

A List of Delphacidae in the Ryukyu Islands (Hemiptera)

11.

Genus Peregrinus Kirkaldy

1904 Peregrinus Kirkaldy, Entomologist, 37, p. 175.

13)

Peregrinus rnaidis (Ashmead, 1890)

Jap. name: Tomorokoshi-unka.

9

1890 Delphax maidis Ashmead, Psyche,S, p. 323.

1896 Delphax psylloides Lethierry, Ind. Mus. Notes, 3, p. 105.

1897 Dicranotropis maidis Van Duzee, Bull. Buffalo Soc. Nat. Sci., 5, p. 240. 1903 Liburnia psylloides Melichar, Hom. Fau. Ceylon, p. 104.

1904 Peregrinus maidis Kirkaldy, Entomologist, 37, p. 176.

1906 Pundaluoya simplicia Distant, Fauna Brit. India, Rhynch., 3, p. 468.

1958 Peregrinus maidis Takara, Kontyu, 26 (2), p. 83 (Okinawa-jima, Ishigaki-jima, Iriomote-jima) .

1958 Peregrinus maidis Takara, Ryukyu Togyo Shinkokaiho, (3), p. 35 (Okinawa-jima,

Ishigaki-jima, Iriomote-jima).

Food: Gramineae-Zea Mays

L.,

Saccharum officinarum

L.

Specimens examined:-0kinawa-jima:

4 Exs., 10. VI. 1956 (T. Takara).

Ishigaki-jima: 5 Exs., IX. 1955 (T. Takara). Iriomote-jima: 10 Exs., 10. IX.

1955 (T. Takara).

Local distr.:

Okinawa-jima, Ishigaki-jima, Iriomote-jima.

Foreign distr.:

Formosa, India, Java, Micronesia, Australia, Hawaii, N.

America, Africa, etc.

This species can be found almost year round, enormous occurrence

being from June to September.

This species is scarcely on

Saccharum

officinarum

and heavily on

Zea Mays.

12.

Genus Saccharosydne Kirkaldy

1907 Saccharosydne Kirkaldy, Haw. Sugar Plant. Ass. Bull., 3, p. 139.

14)

Saccharosydne proeerus (Matsumura, 1910)

Jap. name: Hoso-midori-unka.

1906 Oxycranus procerus Matsumura, List Injur. Ins. Jap., p. 14 (nom. und.). 1910 Oxycranus procerus Matsumura, Manual Jap. Injur. Ins., form. ser., p. 120. 1917 Saccharosydne procerus Matsumura, App. Ent., form. ser., p. 382.

Food: Gramineae-Zizania latifolia

Turcz. (Makomo).

Specimens examined:-Okinawa-jima:

10 Exs., 25. IV. 1959 (T. Takara).

Ishigaki-jima: 3 Exs., 27. VIII. 1958 (T. Takara).

Local distr.:

Okinawa-jima (hab. nov.), Ishigaki-jima (hab. nov.).

Foreign distr.:

Japan, Korea, Manchuria, Formosa.

Literature cited

Rhyn-chota. 3.

2. (1912): Descriptions of new genera and species of oriental Homoptera. Ann. Mag. Nat. Hist., 8th ser., 9, p. 181-194.

3. (1918): Fauna of British India, including Ceylon and Burma, Rhynchota, 7. 4. Esaki, T. et S. Hashimoto (1930): Report on the leaf-hoppers injurious to the rice

plant and their natural enemies, 1.

5. - - (1931): Ibid., 2.

6.~-~ (1932): Ibid., 3.

7. Esaki, T. (1932): Iconographia insectorum Japonicorum (Nippon Konchu Zukan), Delphacidae.

8. Esaki, Hori et Yasumatsu (1939): Insectorum japonicorum illustratio iconographica coloribus ad naturam depicta (Genshoku Nippon Konchu Zusetsu).

9. Esaki, T. (1940): Injurious insects of Micronesia and their control. Bot.& Zool., 8, p. 274-280.

10. Esaki, T. et T. Ishihara (1943): Report on the leaf-hoppers injurious to the rice plant and their natural enemies. 13.

11. (1952): Iconographia insectorum Japonicorum (Nippon Konchu Zukan),

Araeopidae.

12. Ishihara, T. (1949): Revision of the Araeopidae of Japan, Ryukyu Islands and Formosa (Hemiptera). Sci. Rep. Matsuyama Agr. ColI., no. 2.

13. ~-- (1951): Delphacidae of Japan. Shin Konchu, 4 (10), p. 37-42; 4 (11), p. 39-43; 4 (12), p. 39-46; 4 (13), p. 35-42.

14. ~ (1952): De1phacidae of Oze, Honshu, Japan (Hemiptera). Ins. Mats., 18 (1-2), p. 35-37.

15. Kate, M. (1933): Three colour illustrated insects of Japan (Bunrui Genshoku Nip-pon Konchu Zukan).

16. Kirkaldy, G.W. (1903): Miscellanea Rhynchotalia, no. 7, Entomologist, 36, p. 179-181.

17. ---~--(1904): Some new Oahuan Hemiptera, Entomologist, 37, p. 175-179. 18. Matsumura, S. (1905): Die Hemipteren Fauna von Riukiu (Okinawa). Trans.

Sap-poro Nat. Hist. Soc. 1, p. 15-38.

19. - - - (1907): Monographie der Homopteren-Gattung Tropidocephala Star. Ann. Hist. Nat. Mus. Hungar., 5, p. 56-66.

20. (1910): Manual of Japanese injurious insects (Dainippon Gaichu Zensho), form. ser.

21. - - - (1913): Thousand insects of Japan, additamenta (Shin Nippon Senchu Zukai), 1.

22. (1917): Applied entomology (Oye Konchu-gaku).

23. (1920): Manual of Japanese injurious insects (Dainippon Gaichu Zensho), 24. (1930): Illustrated thousand insects of Japan (Zetei-Nippon Senchu Zukai) ,

1.

25. (1931): 6000 illustrated insects of Japan-Empire (Nippon Konchu Daizukan). 26. - (1932): Conspectus of Japanese injurious insects (Dainippon Gaichu Zusetsu). 27. --~ (1932): Illustrated common insects of Japan (Nippon Tsuzoku Konchu

Zu-setsu) .

28. (1935): Revision of Stenocranus Fieb. and its allied species in Japan-Empire. Ins. Mats., 9 (4), p. 125-140.

29. (1935): Supplementary note to the revision of Stenocranus and its allied species in Japan-Empire. Ins. Mats., 10 (1--2), p. 71-78.

30. Matsumura, S. et T. Ishihara (1945): Species novae vel cognitac Araeopidarum Imperii Japonici. Mushi, 16, p. 59-76.

A List of Delphacidae in the Ryukyu Islands (Hemiptera) 11

no. 16.

32. Okajima, G. (1934): Insects affecting rice plant in Kiushu and their distribution. Bull. Kagoshima Imp. Coli. Agr.& For., Ded. Twenty-fifth Anni., 1, p. 537-615.

33. Shiraki, T. (1954): Catalogue of injurious insects in Ryukyu Islands.

34. - (1955): Ryukyu-retto Konchu Saishu-ki. Shin Konchu, 8 (1), p. 34-36. 35. Takano, H. et M. Yanagihara (1939): Manual of Formosa insects injurious to

sugarcane (Taiwan Kansho Gaichu-hen).

36. Takara, T. (1958): Two species of Delphacidae in Ryukyu Islands. Kontyu, 26 (2), p. 83.

37. (1958): A list of Hemiptera in the Borodino (Daito) Islands, Ryukyu. Sci. Bull. Agr. Home Econ. & Eng. Div. Univ. Ryukyus, (5), p. 1-16. 38. (1958): List of injurious insects of sugarcane in the Ryukyu Islands. Ryukyu

Togyo Shinkokaiho, (3), p. 26-43.

39. Takeuchi, K. (1955): Coloured illustrations of the insects of Japan (Genshoku Nip-pon Konchu Zukan).

40. Yashiro, H. (1927): A list of insects in Roo-choo Islands (Okinawa-ken Konchu Mokuroku).

41. (1939): Relation between the leaf-hopper outbreaks and wind-storms in Oki-nawa Islands. App. Ent., 2 (3), p. 119-120.

42. (1940) : General description of the important injurious insects in Okinawa Prefecture. Agr. & Har., 15 (12), p. 2426-2432.

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