30 I. AHMAD 



seventh abdominal sternum with a median rectangular projection as in Text-fig. 70. 



$ genitalia : First gonocoxae broad, apex rounded ; intervalvular sacs absent ; sper- 

 matheca flask-shaped with a long curved neck as in Text-fig. 74. 



Holotype <$, Congo : Congo da lemba, i.ii.1913 (R. Mayne), Mus. R. Afr. centr. 



Paratypes. 2 <$, 2$, with data as holotype, Mus. R. Afr. centr. ; Congo : Kat- 

 anga, Kando, 2 $, 25.iii.1931 (G. F. de Witte), Sokole, Eala, Sankuru, and Ubangi, 

 3 <$, 2 $, 31.xii.19u, x.1923, 5.^.1931, v.1937, 1952 (various collectors), Mobwasa, 

 1 $, 30.xi.1912 (R. Mayne), Mus. R. Afr. centr. ; Sierra Leone : Freetown, 1 <J, 

 13.viii.1899 (E. E. Austen), B.M.(N.H.) ; Nigeria ; Old Calabar, 1 J (Schouteden), 

 Mus. R. Afr. centr. 



The range of this species extends in the west into Sierra Leone and in the east into 

 Congo. Adults have been collected in the early part of the year until May, but they 

 have not been collected in June or July. 



This species is very close to elegans (Blote) in general appearance but can easily be 

 separated by the form of the claspers of the <$. In $, the median projection of the 

 seventh abdominal sternum separates it from all the species of this subgenus. 



STENOCORIS (STENOCORIS) Burmeister 



Type-species : Cimex tipuloides, Degeer. 



Body robust. Head elongated, usually distinctly longer than broad ; paraclypeae usually 

 short, straight and rounded at apices ; ocelli close together but distance between an ocellus and 

 an eye about one-third as long again as interocellar distance. Antennae with apical segment 

 pale only at base, second usually distinctly shorter than third. Rostrum long, usually reaching 

 second coxae. Lateral black line usually present, never extending beyond middle of propleuron. 

 Pronotum sloping down towards head with posterior angles usually brownish black. Abdomen 

 with dorsum usually palish red ; venter usually pale unicoloured. 



In o", posterior margin of seventh abdominal tergum usually truncate ; pygophore usually 

 rounded ; claspers crossed in socket (Text-fig. 75), curved in middle with apices pointed; 

 aedeagus with only ventral pair of thecal appendages ; dorsal pair wanting ; frontal conjunc- 

 tival appendages paired, elongated and sclerotized ; membranous appendage with usually 

 paired dorsal appendages, terminal appendage absent. 



In $, posterior margin of seventh abdominal sternum medially bilobed ; first gonocoxae 

 large, often mainly hidden under seventh abdominal sternum ; intervalvular sacs absent ; 

 spermatheca flask-shaped with a long coiled tube. 



This subgenus can be distinguished from other subgenera in the <§ by the character 

 of claspers which are crossed in a socket and in the $ by the bilobed posterior margin 

 of seventh abdominal sternum. 



Key to Species 



1 Rostrum reaching anterior base of hind coxae ; apices of femora tinged with red 



(frontal conjunctival appendages in $ aedeagus very short (Text-fig. 167)) ; 

 spermatheca cylindrical (Text-fig. 174) ..... v-nigrum (p. 57) 



— Rostrum never reaching hind coxae ; apices of femora never tinged with red . 2 



2 Posterior angles of pygophore produced backward (Text-fig. 148) ; in $, posterior 



margin of seventh abdominal sternum deeply indented in middle (Text-fig. 93) . 3 



