CONORHINUS RUBROFASCIATUS 487 



According to Distant this division contains four genera, only one of 

 which, Conorhinus, concerns us here. 



GENUS CONORHINUS, LAPORTE.* 



Head long, porrect, more or less distinctly impressed behind the eyes ; 

 rostrum with the first joint very much shorter than the second ; antennae 

 inserted on the sides of the head about midway between eyes and apex ; 

 ocelli placed very far apart ; prosternum broadly sulcated ; abdomen 

 strongly ainpliated, not centrally carinate, frequently with the disc pro- 

 minently flattened ; posterior tibiae longer than the femora. (Distant). 



The bugs belonging to this genus are of considerable sue, often measur- 

 ing an inch or more in length. All the species are of a dark brown 

 to black colour, with reddish or yellowish lines and spots on the head, 

 thorax, wings and connexivum. The male can be distinguished from the 

 female by the shape of the end of the abdomen ; in the male it is rounded 

 off, while in the female it is pointed ; the male hypopygium is well devel- 

 oped and forms a prominent swelling on the ventral surface. The eyes 

 are very prominent and form two lateral rounded swellings ; the ocelli, 

 which are behind and above the eyes, are well developed, and often 

 appear as clear spots. The proboscis is short and stout and is held in a 

 looped manner under the head. 



The species are widely distributed and are found in the Neartic, 

 Neotropical and Oriental regions. 



Conorhinus rubrofasciatus, de Geer. (Plate LIX, fig. 1.) Pisceous 

 brown. Head dark brown to black with the basal margin reddish. 

 Antenna, first joint not quite reaching apex of head ; second joint three 

 times the length of first ; the basal joints dark, apical joints light. 

 Pronotum dark brown to black ; anterior angles produced into two short 

 spines of a reddish yellow colour. Two blunt prominences ending in 

 diverging ridges on anterior portion of dorsal surface of pronotum ; lateral 

 margin of pronotum to posterior angles with a reddish yellow linear 

 streak; scutellum dark, apex occasionally reddish ; corium with a basal 

 oblique linear streak and a somewhat diffuse subapical reddish yellow 

 spot ; wing membrane fuscous. Connexivum with reddish yellow lateral 

 spots on dorsal surface, which as a rule extend to the margin and form a 

 continuous reddish yellow edging to the abdomen. Length 19 to 23 mm. 



* In a recent paper Neiva proposes re-establishing the generic name Triatoma, Wolf, 1802, 

 (in Laporti) for Conorhinus, Laporte, 1833, on the grounds of priorty. The authors are 

 informed by Mr. Distant, in a private communication, that he sees no reason for thus altering 

 a well established and universally, familiar name. 



