430 P. CAMERON. 



The amount of the yellowish color on the fore legs varies, 

 as it does also on the hinder; the yellow band, for example, 

 near the base of the tibiae is more clearly defined in some 

 examples than in others. 



TRISMICRA Ashm. 



13. Trismicra fortidens sp. n. 



Black, the underside of the antennal scape, a narrow line on the 

 lower two-thirds of the inner and on the upper two-thirds of the outer 

 orbits, a slightly broader line, narrowed outwardly on the apex of the 

 pronotum, a broad interrupted line on the base of the second abdomi- 

 nal segment, a narrower one on the third, a moderately wide line nar- 

 rowed towards the base and apex and a similar line on the lower basal 

 edge extending from the base to near the middle, bright yellow. The 

 three femoral teeth are stout, triangular, of equal size except that the 

 apical is dilated at the apex. Wings with the basal half distinctly suf- 

 fused with fuscous, the apical hyaline, the nervures black. 9 . Length 

 7 mm. 



Face strongly transversely striated, except in the centre where there 

 is a smooth longitudinal line, narrowed near the middle. The clypeus 

 is broadly rounded, the middle smooth, the sides strongly punctured. 

 Frontal depression closely transversely striated, the sides closely reticu- 

 lated-punctured. Pro- and mesothorax closely, rather strongly punc- 

 tured. Propleuras smooth, the upper half, especially at the apex, irre- 

 gularly longitudinally striated. Basal third of mesopleurse depressed, 

 shining, longitudinally striated, the striae stout and clearly separated ; 

 the top at the base is punctured, at the apex below the tegulae striated, 

 the striae running obliquely downwards. Apical margin of scutellum 

 clearly separated, transverse, with the sides rounded. Parapsidal fur- 

 rows complete. Metanotum coarsely irregularly reticulated, the lower 

 central part with an area which is longer than wide and is roundly 

 narrowed above. Sides of metathorax broadly rounded. Abdominal 

 petiole about twice longer than wide. Legs smooth and shining, 

 the hind coxae are as long as the femora. Temples stoutly keeled. 

 Malar space two-thirds of the length of the eyes. Head and thorax 

 densely covered with white pubescence. The sides of the pronotum 

 are rounded. 



Mendoza, November. 



ONCOCHALCIS Cam. 



14. Oncochalcis Jorgensenii sp. n. 



Black, the tegulae, the apical third of the four anterior femora, the 

 four anterior tibiae except for a black line on the middle behind, a 

 large curved oblique mark on the apical fourth of the hind femora on 



