80 I. AHMAD 



India and in the east right into Samoa, New Caledonia and the Fiji Islands and is 

 found throughout the year. No specimens have been recorded from Java and Ceylon. 

 Its biology and life history have been studied in India by Lefroy (1908) and Akbar 

 (1958) under the name of Leptocorisa varicornis (Fabricius). 



This species, with L. oratorius (Fabricius) and L. chinensis Dallas, forms a group 

 of widely distributed pests of paddy crops in the Far East, but it can easily be 

 separated from them and in fact from all other species of Leptocorisa in the <$ by the 

 claspers, which are bifurcated at apices and in the 2 by a very small median triangular 

 projection of the seventh abdominal sternum. 



Stal redescribed acutus Thunberg and varicornis Fabricius as distinct species. 

 During the present study the types of both the species have been examined, and 

 were found to represent the same species. In view of the damaged condition of the 

 supposed type of acutus Thunberg in the Zoological Institute, Uppsala, and with the 

 agreement of Dr. Kullenberg (Mr. Hedstrom), a male specimen in the Riksmus., 

 Stockholm from the type locality (Malacca) and bearing Stal's label " Cimex acutus 

 Thunb. Mus. Thunb." has been designated neotype and has been given a neotype 

 label. 



Leptocorisa biguttata Walker 



(Text-figs. 202, 216, 230, 244, 258 and 273-277) 



Leptocorisa biguttata Walker, 1871 : 174 



Leptocorisa biguttata Walker; Distant, 1901 : 372 [as synonym of L. costalis Herrich Schaffer] 



Characterized by hemielytra which, excluding the costal margins, are black, by 

 lateral black line extending from sides of antenniferous tubercles on to pronotal 

 collar, by short paraclypeae, which are thick at bases and pointed at apices, and 

 by the form of <$ and $ genitalia. 



o*. Body length, 16-0-17-0 mm., width, 2-2-2-4 mm - Head length, 2-2-2-3 mm., width, 

 1-7-1-8 mm. Antennae, segment I, 4-8-4-9 mm., rest missing. Rostrum, segment I, i-6- 

 1-7 mm., II, 1-7-1-8 mm., Ill, 0-9-1-0 mm., IV, o-8 mm. Pronotum, length, 2-7-2-8 mm., 

 width, 2-2-2-4 mm - Hind femora, 7-0 mm. Hind tibia, 7-0-7-2 mm. Distance between 

 ocelli, 0-5-0-55 mm., distance between an ocellus and an eye, 0-95 mm. 



Body elongated, robust and brownish black. Head elongated, yellowish brown with occipital 

 suture medially smoothly concave ; paraclypeae short, very thick at bases and pointed at 

 apices. Rostrum short, reaching apices of second coxae. Lateral black line extending from 

 sides of antenniferous tubercles on to collar. Pronotal disc yellowish brown, posterior angle 

 with black spots. Hemielytra, excluding costal margin, dark black. Legs brownish black, 

 hind femora darker. Posterior margin of seventh abdominal tergum truncated, medially very 

 slightly convex ; pygophore almost rectangular (Text-fig. 273). 



cJ genitalia : Claspers extending well beyond the posterior margin of pygophore, apices 

 broadly truncated (Text-fig. 202) ; both dorsal and ventral thecal appendages present as in 

 Text-fig. 274, symmetrical ; left lateral conjunctival appendage short, pointed and curved like 

 an arch ; frontal conjunctival appendages with three sclerotized pieces as in Text-fig. 274 ; two 

 right lateral conjunctival appendages, second thick at base and bifurcated at apex (Text-fig. 

 216, F) ; dorsal membranous appendage with a laterally pointed terminal, and a bilobed dorsal 

 appendage (Text-fig. 274). 



$. Body length, 17-5-17-8 mm., width, 2-4-2-5 mm. Head length, 2-2-2-4 mm., width, 

 1-8—1-9 mm. Antennae, segment I, 5-0 mm., II, 3-0 mm., Ill, 3-3 mm., IV, missing. Rostrum, 



