432 P. CAMERON. 



above; the meso pleurae smooth, a smooth line down the centre near 

 the middle ; there are large scattered punctures below, as is also the 

 case with the metapleurae. Abdomen smooth and shining. 



Mendoza, March. 



DIRKHINUS Dal. 

 16. Dirrhiims reticulatus. sp. n. 



Black, the antenna?, tarsi and four anterior tibiae testaceous, the 

 antennas darkened towards the apex ; the head and thorax closely 

 reticulated and covered with white pubescence, as are also the base of 

 the legs; wings hyaline, the nervures black. 9 . Length 3.5 mm. 



The middle of the scutellum is aciculated, not reticulated. Meta- 

 notum opaque, alutaceous, the reticulations formed by fine keels ; the 

 areola longer than wide, extending to the top of the apical slope ; the 

 base narrowed, the sides bulging roundly outwardly, the apex broadly 

 rounded ; it is bounded by a large basal area, obliquely widened at 

 the base and with a smaller, oblique square apical one; at the apex of 

 these are two areae, longer than wide, shining, smooth, and rounded 

 at the base, the outer edge is bounded by a keel. The metanotum has 

 the apical half roundly narrowed. Pleurae reticulated like the meso- 

 notum except the apical half of the mesopleurae which is closely, rather 

 strongly obliquely striated. Abdominal petiole wider than long, acicu- 

 lated, the sides with a smooth margin ; the base of the second segment 

 finely closely striated. 



Mendoza, December. 



EUCHARID^. 

 SEMORA gen. nov. 



Antennae 13-jointed, placed on the middle of the head, the 

 scape not reaching to the ocelli ; the basal joints of flagellum 

 longer than wide- the basal joint more than twice longer than 

 wide, longer than the succeeding ; the pedicle is more cylin- 

 drical, longer than wide. Centre of face roundly convex, 

 clearly separated ; clypeus is bounded laterally by oblique 

 furrows. Malar space as long as the eyes. Parapsidal fur- 

 rows deep. Scutellum roundly convex, the apical slope 

 shorter and more rounded than the basal, the apex with a 

 transverse furrow ; the sides on basal slope bordered by a 

 shallow furrow. Metanotum at the base on either side with 

 a triangular depression ; its centre depressed. Abdomen dis- 

 tinctly petiolated, the petiole about six times longer than 



