12 I. AHMAD 



STENOCORIS (PSEUDOLEPTOCORISA) subgen. n. 



Type-species : Leptocorixa (Rhabdocoris) erratica Blote. 



Body comparatively robust. Head only a third longer than broad ; paraclypeae long, about 

 two-fifths the length of head, with pointed apices ; ocelli very close together, inter-ocellar 

 distance only slightly less than half the distance between an ocellus and an eye. Antennae 

 with at least basal halves of apical segments pale. Rostrum short, reaching second coxae. 

 Lateral black line strongly represented, extending from base of antenniferous tubercles to 

 posterior of propleuron. Pronotum distinctly sloping down towards head, with latero-posterior 

 tips light brownish black. Abdomen dorsally pale blackish ; abdomen ventrally dull 

 ochraceous. In q\ posterior margin of seventh abdominal tergum produced, with a slight 

 median notch ; pygophore round ; claspers extending behind pygophore, asymmetrically 

 crossed, " S "-shaped with broad truncated apices ; aedeagus with dorsal and ventral pairs of 

 thecal appendages ; frontal conjunctival appendage absent ; membranous appendage present 

 but supporting and dorsal appendages wanting ; vesica with very small gonophore. 



In $, posterior margin of seventh abdominal sternum concave with median fold ; first 

 gonocoxae very large with lobe-like apices ; two pairs of intervalvular sacs ; spermatheca 

 flask-shaped, medially thick with long curved neck, and very short tube. 



This subgenus is isolated in Stenocoris but exhibits the characters of the genus in 

 body shape, in lacking supporting appendages, in the form of membranous appendage 

 of the aedeagus and in having curved " S "-shaped claspers composed of one compo- 

 nent and a plain flask-shaped spermatheca without a median flange. However it is 

 close to Leptocorisa in having a rounded pygophore, dorsal and ventral pairs of thecal 

 appendages of the aedeagus and in the concave posterior margin of the female seventh 

 abdominal sternum. It differs from both Leptocorisa and Stenocoris by the absence 

 of frontal conjunctival appendages and in having only two pairs of intervalvular sacs. 

 Pale basal halves of apical segments of antennae, lateral black line extending up to 

 the posterior of propleuron, claspers with thick and truncated apices and the median 

 fold on the posterior margin of the seventh abdominal sternum in the female are 

 unique characters of this subgenus. This subgenus also shows some relations with 

 Lyrnessus geniculatus (Guerin) and Cosmoleptus sumatranus Blote of the tribe Noliphini 

 in the characters of the hemielytra and apical antennal segment. 



Stenocoris (Pseudoleptocorisa) erratica (Blote) comb. n. 



(Text-figs. 1 0-18) 



Leptocorixa {Rhabdocoris) erratica Blote, 1937 : 286 ; Villiers, 1955 : 1143, 1963 : 234 



Characterized by the pale basal half of the apical segment of antennae, by the 

 round pygophore and by <$ and $ genitalia. 



o*. Body length, 130-140 mm., width, 2-0-2-2 mm. Head length, 1-7-1-8 mm., width, 

 1-3-1-4 mm., (only paraclypeae, 0-7 mm.) Antennae, segment I, 3-7-4-7 mm., II, 2-1-2-6 mm., 

 Ill, 2-7-3-2 mm., IV, 4-2-4-9 mm. Rostrum, segment I, 1-2-1-3 mm., II, 1-3-1-4 mm., Ill, 

 0-7-0-8 mm., IV, 0-6-0-77 mm. Pronotum, length, 2-2-2-5 mm., width 2-0-2-2 mm. Hind 

 femora, 5-6-6-4 mm. ; hind tibia, 6-1-7-2 mm. Distance between ocelli, 0-4-0-5 mm., distance 

 between an ocellus and an eye, 0-66-0-7 mm. 



