274 Journal New York Entomological Society. I VoL xxvii. 



yellowish, indistinct, nearer to each other than to the eyes and situated about 

 on a line drawn through centers of eyes ; margins of gense forming more or less 

 of a right angle by extending straight mesad from the eyes and then turning 

 sharply downward to the clypeus ; clypeus longer than broad, extending for 

 more than half its length below inferior margins of genae, convex, punctate, 

 densely pilose at tip. 



Pronotum rounded in front, compressed behind, concolorous greenish yel- 

 low in cabinet specimens, evenly and finely punctate, densely pilose with long 

 grayish hairs ; dorsum subarcuate, highest before humeral angles ; median 

 carina sharp and strongly percurrent ; metopidium convex, about as wide as 

 high, a smooth rounded area at base above each eye ; humeral angles promi- 

 nent, auriculate ; posterior process short, thick, blunt, tectiform, slightly de- 

 pressed, extending almost to the tips of the tegmina. 



Tegmina hyaline, very faintly clouded with brown at base and tip ; base 

 and costal area slightly punctate ; veins more or less indistinct but lightly 

 punctate in basal half of tegmen ; tegmina and hind wings with apical cell 

 stylate. 



Thorax, abdomen and legs yellow, the hind tibiae minutely spined and the 

 spines tipped with brown. 



Length, 4.8 mm. ; width between humeral angles, 2 mm. 



Type : female. Locality : Peru. 



Ophiderma fascipennis new species. 



Very small, dark brown with yellow band before apex of posterior process, 

 finely punctate, not pubescent ; dorsum strongly sinuate ; tegmina with promi- 

 nent brown band diagonally across apex ; head lightly tuberculate at base. 



Head broader than long, dark brown with median line and sutures of cly- 

 peus clearly and evenly marked with yellow, finely punctate, not pubescent ; base 

 of head sinuate, the margin just above each ocellus upraised and swollen into 

 small tubercles ; eyes not prominent, brown; ocelli small, distinct, yellow, about 

 equidistant from each other and from the eyes and situated about on a line 

 drawn through centers of eyes; clypeus convex, finely punctate, very slightly 

 pubescent at tip. 



Pronotum broad, convex, flattened in front and somewhat swollen behind 

 middle suggesting the genus Xantholobus, finely punctate, not pubescent, a 

 broad yellow band at base of posterior process ; metopidium broader than high, 

 sloping; percurrent median carina very faint on metopidium but distinct be- 

 hind middle of body ; dorsum sinuate as seen from the side, a slight depression 

 above humeral angles, a deeper one in middle of pronotum and another at base 

 of posterior process ; humeral angles prominent, triangular, auriculate, acute at 

 point ; posterior process set off at base by broad yellow fascia which is broadest 

 on median carina and narrows rapidly as it approaches the lateral margin of 

 the pronotum giving a triangular appearance as seen from one side, entire 

 process short, triangular, tectiform, blunt, the tip extending well beyond the 

 end of the abdomen but not reaching apex of tegmen. 



