OBYNERTJS. 163 



Small, black; head and thorax densely punctate. Head 

 rounded ; the antennas inserted a little lower than the middle of 

 face. Clypeus rounded, convex, slightly bidentate at the apex; 

 angles of prothorax sharp. Post-scutel transverse, a little 

 elevated, rounded and rough. Metathorax roughened above; its 

 posterior face excavated, with sharp edges, and bidentate on each 

 side; the lateral tooth or angle placed rather lower than the 

 middle of the metathorax; the excavation smooth. Abdomen 

 very little punctured; the first segment anteriorly truncate and 

 smooth ; the suture angulate ; the upper face with shallow punc- 

 tures and parted by a slight groove; second segment slightly 

 constricted at base, tuberculate at base beneath. 



Antenna? ferruginoas beneath. A little dot behind the eye, 

 anterior edge of prothorax, a spot below the wing, the posterior 

 margin of scutel, and of the first two abdominal segments, 

 sulphur-yellow or whitish. Wings subhyaline; the costal part 

 and base washed with ferruginous. 



9. Clypeus more triangular, strongly cribrose, black. Wing 

 scale yellow, with a brown spot. Feet black; tarsi and anterior 

 tibiae rather ferruginous beneath. 



Tar. Clypeus with an interrupted yellow baud and two yellow 

 spots or with yellow spots only. 



%. Clypeus yellow, tenuously margined with black. Hook of 

 the antennas very small. Knees, tibiae, and tarsi ferruginous. 

 Spot under the wing small. Wing scales black, margined with 

 yellow. The yellow fasciae of scutel narrow or interrupted. 



Var. ]STo spot under the wing ; scutel entirely black, mandibles 

 passing into a pale color. 



Bess. a. diff. — The male rather differs from the female, so that 

 I first thought them to be different species ; however I have no 

 doubt as to their identity, having been able to compare 8 ?, 9 £. 



Hab. Chili. In the woods. 



B. Form still lengthened, but less slender. 



10. A. capra Sauss. — Validus, gracilis, niger, punctatus ; antennis 

 subtus ferrugineis, scapo fascia flava ; metanoti foveola polita, punctata, 

 acute marginata, per carinam divisa, angulata, % utrinque in dentem 

 laleralem excurrente ; elypei maculis 2 vel 4, puacto frontali et post- 



