Tue PsELAPHIDZ OF NorTH AMERICA. 77 
as wide as the prothorax, across the tip one-half wider, and 
equal to the length of the suture. Abdomen, across the second 
segment, wider than the elytra. Legs rather long and stout, 
the third tarsal joint three times longer than the second. 
Habitat. Virginia. 
F. cavirrons, Casey. Brown, impunctate, polished; pubes- 
cence long, coarse, and recumbent, especially long on the 
tempora and abdomen. Length 1.9 mm. Plate XIL., Fig. 
126. 
Head, behind the large prominent eyes, nearly as wide as 
the distance from the frontal margin to the base, which is 
continuously arcuate with the tempora; sides, for a short dis- 
tance before the eyes, convergent, thence forming an obtuse 
angle with the parallel antennal tuberculations; disk moder- 
ately convex, deeply excavated between the antennal tuber- 
cles, leaving the frontal margin very sharp in the middle; in 
the eye line are two small, faintly impressed fovez, not quite 
twice as distant from one another as from the eye. Antenne 
very pubescent, longer than the head and prothorax together; 
first joint oblong-oval, as wide as the ninth joint, nearly twice 
as long as wide, second oval, shorter, equal in thickness to the 
first; third smallest, globular, fourth to tenth sub-equal, mon- 
iliform, slightly and gradually increasing in size; the tenth is 
rather wider than long, eleventh ovate, little wider than the 
tenth, and one-half longer than wide. Last joint of the maxil- 
lary palpi nearly fusiform, twice as long as wide. Prothorax 
wider than the head, one-fifth wider than long just before the 
middle, where the sides are evenly rounded; thence nearly 
straight to the neck, and slightly sinuate toward the base; 
neck half as wide as the base, which is about three-fourths of 
the greatest width; disk with two small, slightly impressed 
foveze before the middle, and the basal structure given in the 
generic description, modified by the lateral carine including 
little more excavated space than one-half of the basal width. 
Elytra \onger than wide, slightly divergent at the sides, width 
