MORGAN HEBARD 
327 
weakly lamellate, straight, subattingent, serrulate to the immediate apex and 
thickly supplied with erect, small, subequal hairs; dorsal surface convex, with 
a brief, but very decided, proximal ridge, which extends from near the inter- 
nal margin to just beyond the median line of the shaft and is strongly con- 
vex in longitudinal contour; ventral surface deplanate. Metaperameres 
projecting, soft, but with two very sharp, chitinous, medio-distal, fang-like 
thorns, directed ventrad and curving cephalad, proximad of these the integu- 
ment is subchitinous and produced in a convex ridge, which fits into the 
median emargination of the penultimate ventral abdominal segment.®^ This 
segment has its caudal margin transverse, with a small but decided angulate 
emargination mesad. 
Length of body, 4.01; of pronotum, .57; of tegmen, 1.5; of exposed portion of 
wing, .35; of forceps, .57 : width of pronotum, cephalic, .48; of pronotum, caudal, 
.54; of tegmen, .51; of abdomen, .68 mm. 
Head ochraceous-tawny, eyes black. Antennae, pronotum and limbs ochra- 
ceous-buff. Tegmina and wings ochraceous-buff, the former washed wdth 
ochraceous-tawny proximad, the latter heavily washed with prout’s brown 
along the costal margin. Abdomen ochraceous-tawny, shading to cinnamon 
brown mesad, with lateral portions of fourth and fifth dorsal segments washed 
with prout’s brown. Forceps ochraceous-tawny. Hairy covering golden. 
The type is unique. 
EUGERAX38 new genus 
This genus agrees with Gerax, except in the features given in 
the comparison under the generic treatment of Gerax. 
The genus is rnonotypic. Genotyjje. — Eugerax poecilum new 
species. 
The generic features given in the key are; small eyes, general 
character of pronotum, character of hairy covering, simple and 
similar forceps in both sexes, and remarkable male genitalic 
armament. In addition, we tvould remark that the caudal 
metatarsus is supplied ventrad with hairs, but no chaetiform 
spines; it is remarkably elongate and slender, twice as long as 
the combined length of the minute second and short third joints. 
The limbs are elongate and slender. 
The general facies is strongly Diplatyine; the head is, however, 
evenly convex in both sexes, with eyes small, and the femora are 
simple, not keeled. An immature example before us has the 
In this specimen the metaperameres are evidently extruded; it is not 
probable that the fangs, here described, can be drawn completely in and thus 
concealed. 
From 6u = beautiful, and Gerax. 
TRANS. AM. ENT. SOC., XLIII. 
