V66 MR. E. A. ELLIOTT ON THE 



of abdomen ; second segment with extreme base finely rngOse, 

 then microscopically longitudinally aciculate ; third to beyond 

 middle and fourth basally finely sbagreened and dull, remainder 

 smooth. Terebra rather longer than body, white-banded before 

 apex. Hind legs with coxse finely transrugose throughout ; 

 femora bidentate, smooth. 



Black ; head and 3-4 basal antennal joints ferruginous, thorax 

 basally dark red-brown. Tarsi densely gold pubescent beneath. 

 Wings strongly infumate, nervures black-brown, stigma slender. 



Length, $ , 19^^ mm. ; abdomen 13g mm. ; petiole 7i mm. : 

 ter-ebra 21 j mm. ; fore wing 11| mm. J , 9^-14 m.m. 



Habitat : Prov. Chanchamayo (Rio Toro), Peru ; Rio Autaz and 

 Manaos, Brazil. 



This species is best known from all others by the elongate, 

 unsculptured pronotum. It resembles Parastephanellus collarifer 

 Schlett., from which it may be distinguished by neuration of 

 wings, sculptui'C of median segment and abdomen, and by the 

 colour. 



5. ANGULicoLLis Roman. 



Stephanus (^BemistepJi)^ angulicollis Roman (3).,, p. 7, 5 . 



5 . Frons arcuate rugose, space between the stout anterior 

 tubercles longitudinally rugose, the posterior pair squamiform ; 

 vertex with 3-4 transcarinee ; occiput anteriorly more or less 

 arcuately rugose, remainder smooth, centrally longitudinally 

 aciculate, the rugose and smooth parts forming an obtuse angle 

 with each other. Posterior margin of head produced into a 

 translucent collar. (Scape as long as second flagellar joint, third 

 rather longer than first and second together, fifth as long as 

 fourth and rather longer than sixth. Neck elongate, about one 

 and a half times as long as broad ; in front of the transverse fold 

 is a broad sulcus, on each side of which is a strong raised costa 

 running forwards and suddenly bent outwa,rds, followed by others 

 which become smaller in the direction of the fold ; semiannular 

 coarsely rugose before and below its polished posterior margin. 

 Mesonotum with distinct central row of punctures, parapsidee 

 coarsely subtransversely rugose ; impressed part of metapleurse 

 striate. Median segment with umbilicate punctures of about 

 even size on a smooth ground, lateral impressions from spiracles 

 to anterior margin. Abdomen more than twice as long as head 

 and thorax, petiole slender, strongly trans-striate throughout, 

 longer than the remaining segments together ; extreme base of 

 segment two transrugose, remainder polished and closely acicu- 

 late ; third slightly longer than its apical breadth, basally finely 

 transreticulate, rest aciculate, with broadl}^ smooth apical margin ; 

 3rd to 6th slightly apically emarginate ; fourtli not longer than 

 its basal breadth, basal third transreticulate, centrally transacicu- 

 late, apically polished ; remaining segments strongly transverse. 

 Terebra about one-third longer than body, the black apex about 



