164 
rather densely clothed with long semi-erect hairs, which decrease in 
length on the club gradually towards the apex; funicle joints all about 
three times longer than thick, the club no thicker than the funicle, one- 
third as long and tapering to the acute apex. 
Thorax, legs, and wings similar to the female, the abdomen much 
shorter, a little wider than long, rounded at apex, and about one-half 
as long as the thorax, the first tergite prominent, the following tergites, 
except the apical one, almost entirely concealed beneath the first, but 
not deeply sunken in. 
Frontovertex with distinct but fine, thimble-lke puncturation much 
more evident than in the female; face, except in the depths of the scrobal 
impression, and the inner margin of the cheeks very finely and mostly 
transversely lineolate; mesoseutum much more coarsely reticulate than in 
the female, the reticulations large anteriorly and gradually becoming much 
finer towards the posterior margin; shagreening of the mesopleura rather 
more evident and extensive than in the female; sculpture otherwise nearly 
as in the female. 
Pubescence of head distinctly less sparse than in the female, there 
being fine setae scattered over the frontovertex, on the sides of the face 
and on the lower parts of the cheeks, and the setae of the mesoscutum 
are arranged much more distinctly in rows. 
Genotype: Euchalcerinys apicicornis n. sp. 
This genus is similar to both Chalcerinys and Hele gonato- 
pus of Perkins, but in each of those genera the head is thicker 
and the antennae are slenderer and inserted a little higher on 
the face. Chalcerinys besides has a much stronger, denser 
sculpture, a distinct genal suture, and the apical margin of the 
basal tergite distinctly emarginate; its male has the ridge be- 
tween antennal sockets very prominent and extending towards 
the oral margin as a sublaminate rostriform crest; the scape 
very stout, moderately long, of equal width throughout, and 
somewhat spirally twisted, the pedicel short and flattened; the 
funicle joints all flattened, unequal in size but all longer than 
wide, the first joint largest, it being both wider and longer 
than the following joints. Helegonatopus also is much more 
sculptured than Euchalcerinys, the scutellum being opaque and 
densely shagreened, the genal suture distinct, the maxillary 
palpi four-jointed, the marginal vein about twice as long as 
thick and subequal to the stigmal; while the male has the scape 
rather short and flattened, very wide at base and strongly nar- 
rowed to the apex; the pedicel short, the flagellum slender, 
elongate cylindrical, clothed with long hairs as in Euchalcerinys, 
