ODTNERUS. 163 



Small, black; bead and thorax densely punctate. Head 

 rounded ; the antenna) inserted a little lower than the middle of 

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

 angles of prothorax sharp. Post-seutel 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. 



Antennae ferruginous 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. 



Var. Clypeus with an interrupted yellow band 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. No spot under the wing ; scutel entirely black, mandibles 

 passing into a pale color. 



Bess. a. dijf. — 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 h. 



Eab. Chili. In the woods. 



B. Form still lengthened, but less slender. 



10. A. capra Sauss. — Validus, gracilis, niger, pnnctatas ; antennis tf*tf - ' ' /• J ** 

 subtus ferrugineis, soapo fascia flava ; metanoti fpveola polita, punctata »< i J 



acute marginata, per carinam divisa, angulata, $ ntrinque in dent r s * 

 lateralem exourrente ; clypci maculis 2 vel 4, punoto front all et post- 



