274 [ M ay> 



brownish-yellow, sparingly clothed with short hairs ; 1st joint shortest ; 2nd 

 longest, about one-half longer than the 3rd ; 3rd brown. 



Abdomen : underneath pitchy-brown, clothed with very short appressed hairs. 



Length, 2 J lines. 

 Taken at Rio Janeiro. 



Aeachxocokis dispar. 

 Head yellowish or pale brownish-yellow. Antennae yellowish or pale brownish- 

 yellow ; 1st joint projecting its entire length before the head, apex narrowly 

 fuscous ; 4th white, base narrowly and apex broadly fuscous. Pronotum con- 

 siderably deflected towards the head, thickly and somewhat deeply punctured, 

 anteriorly yellowish or pale brownish-yellow, posteriorly dark brown. ScutelJum 

 and corium dark purplish-brown : membrane brown, with a triangular white 

 patch on the exterior margin adjoining the apex of the corium, and a whitish 

 patch immediately opposite on the interior margin. Legs dark brown : tibiae. : 

 3rd pair yellowish, base and apex narrowly brown. 



Head — crown yellowish or pale brownish-yellow, flattish convex. Antennae yellowish 

 or pale brownish-yellow ; 1st joint slightly clavate, projecting its entire length 

 before the head, narrowly fuscous at the apex ; 4th white, fusiform, base nar- 

 rowly and apex broadly fuscous. Eyes purplish-brown. Ocelli purplish-brown. 

 Rostrum brown ; 1st joint pale brownish-yellow, sparingly clothed with short 

 pale hairs. 



Thorax — pronotum considerably deflected towards the head ; anterior two-thirds 

 \nd lateral margins narrowly yellowish or pale brownish-yellow ; posterior 

 portion brown, the colour fading into the anterior portion ; posterior angles 

 slightly elevated ; behind the collar a callosity extending almost from side 

 to side, bounded posteriorly by a deep curved channel, in which are three 

 or four deeper punctures ; posterior margin concave across the scutellum ; ex- 

 tremities rounded. Scutellum dark purplish-brown, depressed at the base. 

 Elytra dark purplish-brown, sparingly clothed with hairs : membrane brown, 

 with a triangular white patch on the exterior margin adjoining the apex of the 

 corium, and a whitish patch immediately opposite on the interior margin. 

 Sternum yellowish or pale brownish-yellow. Legs dark brown : thighs : all the 

 pairs thinnest at the base ; 1st and 2nd armed underneath with two rows of 

 stout bristles : tibiae : 3rd pair yellowish, base and apex narrowly brown. 



Abdomen underneath dark brown. Length, 2f lines. 



Taken at Para. 



The pale head and pronotum, difference of colouring in the 

 antennae, absence of the triangular white spots on the corium, and pale 

 hinder tibiae, will readily lead to the separation of the species. 



The wonderful resemblance these species have to those of JPilo- 

 plwrus, Halm., and Mimocoris, Scott, will strike any observer at first 

 sight as remarkable, but the ocelli settle the question at once. 



Lee, S.E. : Uth April, 1881. 



