248 PROCEEDINGS OF THE NATIONAL MUSEUM vOi. icmj 



Pteronemobius longipennis Saiissure 



Nemobius longtpennis Saussure, Mission scientifique au Mexique . . . Recher- 

 ches zoologiques, pt. 6, section 1 (Orthopt^res), p. 383, 1874. 



Nemobius argentinus Chopard, Ann. Soc. Ent. France, p. 559, figs. 87-89, 1918 

 (not argentinus Bruner 1916). 



Specimens examined: Bolivia: Rosaiio, Oct. 28-Nov. 9, 1921 

 (GcfcT, 79), Mann; Rurrenabaque, November 1921 (19), Mann 

 (micropterous). PERtJ: Pucallpa, Oct. 8, 1947 (2crcf), Jan. 10, 1948 

 (ScT cT), Mar. 2, 1948 (19), Schunke (macropterous). 



Remarks: According to Saussiire's description, this species should 

 have the last joint of maxillary palpi not longer than the preceding; 

 I have never seen an American nemobiid presenting exactly this 

 character, but the maxillary palpi are somewhat shorter in the present 

 species than in the neighboring forms. 



Pteronemobius schiinkei, new species 



Holotype: Male; Divisoria, elevation 1,600 meters, about 80 miles 

 southwest of Pucallpa, Rio Ucayali, Peru, November 1947, Schunke 

 (USNM 62062). 



Male: Rather small and short. Head short, rounded, a little wider 

 than the pronotum; vertex weakly sloping; coloration rufous brown 

 above, rather strongly darkened towards the apex of the rostrum; 

 frontal rostrum a little wider than 1st antennal joint, rounded. Face 

 as long as wide, very dark brown. Fijes rounded, projecting; ocelli 

 very small, the anterior one a little before the extremity of the rostrum. 

 Antennae and palpi brown; 4th joint of maxillary palpi veiy short, 5th 

 almost four times as long, rather feebly enlarged at top. 



Pronotum transverse, verj^ feebly narrowing in front, with straight 

 anterior and posterior margins; disk feebly convex, brownish with a 

 lateral hght band; lateral lobes blackish brown, with straight inferior 

 margin. Abdomen dark brown. 



Legs rather short, pubescent, rufous with a few brown spots; 

 anterior and medium tarsi ahnost as long as the tibiae. Posterior 

 femora short and thick, striated with brown on the external face; 

 tibiae armed on each margin with four slender spines fecbl}'' curved at 

 apex; internal spines much longer than the external, chiefly the 

 4th which is longer than the larger spur; 1st spine verj^ small, feebly 

 tuberculif orm ; inferior spurs feebly unequal in length; metatarsi very 

 long. 



Elytra brown, shining, extending almost to the apex of abdomen; 

 mirror very small, almost apical, obliquely transverse, with right 

 anterior angle; apical part divided into two cells, one large and one 

 very small; diagonal vein long, feeblj' curved at base, straight after; 



