34 Naturau History Buuuetin. 
T. impuncTATuM, Brend. Red-brown, pubescence thin. 
Body impunctate, polished. Length, 1.3 mm. Plate XL, 
Fig. 98. 
Head narrower than the prothorax, about as long as wide, 
tempora not prominent, convergent, eyes not prominent, sides 
but slightly divergent towards the tempora; occiput not im- 
pressed, convex, fovez oblong, no circumambient sulcus, frontal 
margin straight, frontal tubercle flat, not prominent. <An- 
tenneé shorter than the head and prothorax together, first 
joint twice as long as wide, obconical; second quadrate nar- 
rower than the first, third to eighth very small, transverse; 
ninth and tenth gradually much wider, not longer than the 
preceding one, the last large, ovate. Palfz small, the third 
joint obliquely rounded, larger than the last joint, which is 
obliquely conoid with rounded sides, or truncate ovate. Pro- 
thorax slightly wider than long, widest across the middle, 
base two-thirds, neck about one-half of the median width; 
disk not as concave as in the other species, the basal sulcus 
slightly impressed, one-fourth from the base, fovee rather 
shallow. lytra rather high-shouldered, the sides slightly 
arcuate, divergent behind, slightly wider across the shoulders 
than the prothorax, one-fifth wider across the tip; suture 
slightly shorter than the apical elytra width, disk convex, bi- 
foveate at the base, discal lines fine, half the elytra length. 
Abdomen longer than the elytra, the first three segments of 
nearly equal width, and subequal in length, with two short 
basal carine. Legs rather short. 
Habitat. Virginia, Maryland. 
T. piscLor, Lec. Convex, of the form of 7: dubzum, but 
slightly smaller, of a rich dark brown color, the abdomen 
piceous-brown. Length, 0.9 mm. 
Head, as wide as the prothorax, the occipital fovez small, 
connected by an arcuate sulcus, occiput channeled in the mid- 
dle or with a median impression, vertex punctate. Prothorax 
longer than wide, impunctate, basal sulcus angulate in the © 
middle, deeply impressed, terminating in large lateral fovee 
