SOME EKDOMYCHID BEETLES STROHECKER 391 



nous (except for outer antennal joints) and the pubescence of the 

 upper surface is erect and sparse, especially upon the pronotum. 

 Length 1.5 mm. From the exposed sixth abdominal segment I judge 

 the specimen to be a male. 



Type.— Unlet, U.S.N.M. No. 55891. 



Type locality.— Mount Makiling, Luzon, P. I. (C. F. Baker). 



The only other species of the genus known at present is the geno- 

 type, P. philippinensis Arrow, described from a single specimen, the 

 sex of which was not noted. The insect before me meets all the generic 

 requirements proposed by Arrow for Parasymbius. He makes no 

 mention of the prosternum, but the present species has the prosternum 

 roundly carinate before the front coxae, flattened between them and 

 margined ; posteriorly it is prolonged beyond the coxae, its tip a little. 

 deflexed and rounded. It differs from Arrow's species in its smaller 

 size, greater length of antennal club, and sparser pubescence. 



Genus TROCHOIDEUS Westwood 



TROCHOIDEUS COELO-ANTENNATUS, new species 



Figure 12, a-c 



Slenderer and less densely pubescent than T. ameiicanus Buquet 

 and T. desjardinsi Guerin. Clypeus truncate anteriorly, the clypeo- 

 frontal suture a broad, low arc. Front shallowly and broadly de- 

 pressed on each side near the insertion of antennae. Ej^es prominent 

 and coarsely granulate. Antennae relatively shorter than in the 

 two species referred to above, massive; joint 1 bulbous, joint 2 very 

 small, narrow at base and rapidly expanded to its apex, joints 3 and 

 4 together forming a large bulb with nipplelike apex. There is no 

 fifth joint apparent, On the under side these two joints are so 

 deeply concave as to appear hollow ; the margin of this concavity is 

 auriculate. Mandibles with slender, aciculate apex. Labium, labial 

 and maxillary palps as in T. desjardinsi. Pronotum almost twice 

 as wide as long, front angles rounded, sides broadened before the 

 middle, thence subsinuately narrowed to the slightly acute hind an- 

 gles. The pronotum has a shallow, parabolic impression at the mid- 

 dle of its base and a transverse impression on either side of this. 

 Scutellum transverse, rounded behind. Umbones of elytra promi- 

 nent but not inflated. Elytra evenly and moderately convex, gently 

 widened in anterior third, thence evenly rounded to the apices, which 

 are subtruncate. The entire surface of the body is clothed with 

 fine, declivent, gray hairs. Elytra brown with a pale, narrow sutural 

 stripe but without a sutural stria. Head similar in color to elytra ; 

 pronotum, antennae, legs, and mouth parts yellow-umber. Length 

 3 mm. 



Type.— Male, U.S.N.M. No. 55892. 



