430 PROCEEDINGS OF THE NATIONAL MUSEUM VOL. 95 
Vertex longer than broad, wider at base than at apex, the inverted 
V-shaped carina nearly touching the apex. Frons long, narrow, grad- 
ually widened to apex, sides straight, median carina simple; clypeus 
tricarinate; genae wide; antennae reaching beyond apex of clypeus, 
cylindrical, second segment much longer than first. Hind basitarsus 
longer than other two joints together; calcar shorter than basitarsus, 
thick, slightly concave on inner surface, devoid of teeth on hind mar- 
gin. Tegmina narrow, apex of clavus almost bisecting hind border. 
MALAXA GRACILIS, new species 
PLATE 8, Figures 87-94 
Male: Length, 3.0 mm.; tegmen, 4.3 mm. 
Head distinctly narrower than pronotum; vertex longer than broad 
(1.5 to 1), slightly hollowed out, anteriorly curving on to frons, apex 
shghtly narrower than base, only slightly projecting before eyes; an 
inverted V-shaped carina anteriorly nearly reaching apex in middle; 
posterior border transverse; frons narrow, flattened, twice as long as 
wide at apex, apex almost three times as wide as base, median carina 
unforked, lateral margins very slightly concave, sutural line im- 
pressed ; clypeus markedly tumid, slightly longer than frons, gradually 
tapering distally, tricarinate; antennae long, tubular, basal joint 
three-quarters length of frons, seven times as long as wide, second joint 
twice as long as first, 11 times as long as wide, beset with setae and on 
distal half with rather sparse sensorial pits, third joint and flagellum 
subequal to basal joint; eyes large, widely emarginate below. Prono- 
tum short, posterior margin obtusely angularly excavated, lateral cari- 
nae not reaching posterior margin; mesonotum tricarinate, disk curved, 
scutellum flat. Legs long and slender; spur thick, crescentic, concave 
on inner surface, devoid of teeth on hind border. Tegmina long, nar- 
row, produced well beyond apex of abdomen, expanding in width for 
three-quarters of length from base then tapering; fork of Sc and R 
slightly basad of apex of clavus, Cu, fork at basal third; Cu, forked 
near apex, remainder simple at apex. Wings scarcely three-quarters 
length of tegmina. 
Head stramineous, base of clypeus with a piceous band, a fuscous 
transverse band near apex; second joint of antennae pale fuscous in 
basal third, piceous in apical third; eyes red. Pronotum stramineous, 
inner angle of lateral lobes broadly piceous; a fuscous band on pleurite 
before mesocoxae; mesonotum fuscous, stramineous at lateral angles, 
tegulae stramineous. Legs stramineous, femora darker dorsally. 
Abdominal sclerites dorsally fuscous, ventrally pallid, fuscous antero- 
laterally, flecked with an orange spot posterolaterally; genitalia 
fuscous. 
