1878. | 613 {LeConte. 
less deep elytral striz. The following species seems to differ 
by the much coarser pubescence, and by the sides of the pro- 
thorax not at all flattened. 
42. Kyletinus pubescens. Oval, convex, piceous, opaque, with 
fine rugose punctuation, densely closed with rather coarse yellowish pubes- 
cence. Prothorax more than twice as wide as long, narrowed in front, 
rounded at the sides, which are not at all flattened, transversely convex, 
slightly declivous towards the base. Elytra with deep impunctured striz, 
scutellar stria long, interspaces flat. Beneath densely punctulate and pu- 
bescent, Length 2.8 mm.; .11 inch. 
Bosque Co., Texas ; one specimen; Mr. G. W. Belfrage. 
MICROMALTHUS n. g. LyMExyLipa? 
Body elongate, head wide, with rounded, convex eyes ; prothorax wider 
than long, narrowed behind, elytra a little shorter than the abdomen, sub- 
striate, smooth at the apex; resembling in miniature a narrow Hydnocera, 
but greatly differing by the antenne, palpi and tarsi. 
Antenne shorter than the head and prothorax ; 1st and 2d joints round- 
ed, as wide as long; 3d small, 4-10th wider, and becoming gradually 
transverse, 11th oval, not wider than the 10th; inserted on the edge of the 
front, before the eyes, which are convex, prominent, rounded, not emar- 
ginate, and rather finely granulated. Maxillary palpi with the last joint 
moderately large, oval, pointed ; labial similar but much smaller; gular 
sutures straight, widely separated. Prothorax transverse, without angles, 
narrowed behind, not margined on the sides. Legs rather long, slender, 
tibiz without spurs, tarsi 5-jointed, as long as the tibiw, joints 1-4 
equal, not lobed, 5th as long as the others united, claws simple. Front 
cox, oblique, conical, prominent, contiguous at the apex ; middle coxe 
large, oblique, conical, not continuous, hind cox transverse, conical, promi- 
nent. Abdomen with six free and nearly equal ventral segments. Pros- 
ternal sutures not visible ; side pieces of metathorax long and narrow. 
No sexual difference can be observed in any of the specimens collected, 
two small spiculee project from the tip of the abdomen in each of them. 
43. MI. debiliis. Piceous, shining, antenne, palpiand legs yellow, head 
smooth, front transversely depressed. Prothorax smooth, with a faint 
transverse impression. Elytra feebly scabrous, nearly smooth at the tip, 
striate except at base and tip. Beneath punctulate, slightly pubescent ; two 
or three dorsal segments exposed. Length 2.2 mm.; .85 inch. 
Detroit, in decomposing wood, August. I have referred 
this genus to Lymexylide on account of the resem- 
blance of the antennze and coxe to those of Hylecetus. In 
such a feeble and ill-(leveloped form we should naturally ex- 
pect the peculiar sexual characters seen in the palpi of the 
other genera to disappear. 
