4
Rice Brown Planthopper
pygofer longer ventrally than dorsally in profile, laterodorsal angle slightly projected,
opening wider than long viewed posteriorly, medioventral process present or absent;
phallus shape variable; suspensorium with broad stem, ventral half ring-like; parameres
long and complex.
Nilaparvata
lugens (Stål, 1854);
Delphax lugens Stål
, 1854. Ofv. Svenska Vet. Ak.
Forh. 11:246 ; D. sordescens Motschulsky, 1863. Bull. Soc. Nat. Moscow 36:109; D.
oryzae
Matsumura, 1906. List Injur. Insects Jpn. 13;
Nilaparvata greeni
Distant, 1906.
Fauna Brit. Ind. 3:486;Kalpa aculeata Distant, 1906. Ibid. 474;
Dicranotropis
anderida
Kirkaldy, 1907. Hawaii Sugar Plant. Assoc. Entomol. Bull. 3:133;
Delphax ordovix
Kirkaldy, 1907. Ibid. 3:152; D. parysatis Kirkaldy, 1907. Ibid. 153;
Nilaparvata
lugens
Muir & Giffard, 1924. Ibid. 15:16;
Hikona formosana
Matsumura, 1935. Insecta
Matsumurana 9:139;
Nilaparvata lugens
Fennah, 1956. Insects of Micronesia 6(3):121;
N. l. Fennah, 1965. Bull. Brit. Mus. Nat. Hist. 17(1):24;
Nilaparvata lugens
Okada,
1977. Food & Fert. Tech. Cen. Asia & Pac. Reg. 3;
Nilaparvata lugens
Mochida &
Okada, 1979. Int. Rice Res. Newsl. 25;
Nilaparvata lugens
Fennah, 1978. Ann. Zool.
(Wars.) 34(9):219;
Nilaparvata lugens
Yang, 1989. NSC Special Publ. 6:276; N. l.
Wilson & Claridge, 1991. CAB Intern. & Nat. Resources Inst. 50;
Nilaparvata lugens
Ding & Zhang, 1994. China Agric. Sci. Tech. Press 83.
Features
:
Body length 3.7-5 mm (macropterous), 2.4-3.3 mm (brachypterous); brown
to dark brown; forewings hyaline, with apex of claval area black; vertex quadrate,
nearly as long as wide, apical margin transverse, submedian carinae not merged
apically, basal compartment wider than base and than its greatest length about 1.7:1;
frons longer in middle line than wide at widest point about 2.2:1, widest at level of
ocelli, lateral carinae almost straight, median carina forked at basal fourth; antennae
passed frontoclypeal suture, with basal segment longer than wide about 2:1, shorter than
segment II about 1:2; tibial spur with 24-29 teeth; forewing longer than widest point
about 3.3:1; pygofer with opening wider than long in posterior view, lateral margins
not well defined, medioventral process absent; phallus tubular, slender, narrowed, and
upturned at apical third; orifice at apical third, right, below orifice with five small
teeth; suspensorium with slender stem, ventral ring turned right angle to stem, left
side sclerotized, remainder membranous; diaphragm very broad, dorsal margin evenly
incised medially; anal segment in deep emargination of pygofer, lateroapical angles
separated, each produced into a long, spinose process; parameres large, inner margin
roundly emarginate at middle, inner angle strongly projected, apex pointed, viewed
