Goleopterological Notices, V. 385 



out the Atlantic States from New York to Texas and far into 

 Mexico. Leugth 2.4-3.0 mm.; width 0.75-0.9 mm. 



O. munitllS n. sp. — Parallel, stout, flavate, the pronotum darker, rufes- 

 cent ; head and abdomen still darker, piceous ; antennse black, pale toward 

 base ; mandibles and legs pale ; integuments polished throughout ; pubescence 

 very sparse, the abdominal setae rather long ; head impunctate and polished, 

 except near and at the sides, where there are some coarse elongated snbrugi- 

 form punctures, the under surface impunctate ; pronotum coarsely, very 

 sparsely, rugosely, the elytra also coarsely sparsely and unevenly punctate ; 

 abdomen minutely, sparsely punctulate. Head v^irj large, as wide as the pro- 

 thorax, slightly wider than long, with a very large uneven smooth impression 

 at each side at about lateral third, the frontal margin abruptly prolonged in 

 a short acute porrect spine ; eyes moderately convex, at very much more 

 than their own length from the basal angles ; tempera behind the eyes nearly 

 straight and feebly divergent, then broadly ronnded to the neck which is 

 three-fifths as wide as the head ; mandibles very long, nearly straight, arcuate 

 at apex, toothed near the base ; antennje only slightly longer than the head 

 exclusive of the mandibles, the basal joint large, stout, constricted at base, 

 nearly as long as the next four, second a little shorter and stouter than the 

 third, which is longer than the fourth, the latter slighrtly elongate-oval, five to 

 eight increasing rapidly in width, eight to ten equal, moderately transverse, 

 eleventh small, conoidal, not as long or wide as the preceding two. Pidhwax 

 short and transverse, nearly twice as wide as long, the sides strongly conver- 

 gent from apical fifth to the basal angles, which are very obtuse and nearly 

 obsolete, the edges feebly crenulate and with a slight sinuation just before 

 the basal angles ; apex broadly bisinuate ; apical angles well marked ; disk 

 strongly trisulcate, broadly impressed toward the sides. Ehjtra two-fifths 

 wider than long, equal in width to the prothorax and fully two-fifths longer ; 

 sides snbparallel, feebly arcuate ; humeri broadly, transversely exposed at 

 base ; suture broadly, strongly margined ; disk of each broadly impressed 

 along the middle. Abdomen short, nearly as wide as the elytra, parallel, the 

 border thin and deep. Length 3.0 mm. ; width 0.8 mm. 



Pennsylvania. 



This species is allied to insignitus, and resembles it strongly in 

 the general form of the head and simple acute apex of the frontal 

 process, but differs in the straight mandibles, eyes more distant 

 from the basal angles and in the much coarser and sparser sculp- 

 ture of the pronotum and elytra; the oblique rugae near the base of 

 the head toward the sides in insignitus are wanting in munitus. 

 The description is taken from the male, which is the only sex that 

 I have seen. 



O. l>reviccps n. sp. — Moderately broad, parallel, dark brownish-testa- 

 ceous ; mandibles and palpi concolorous ; elytra and legs flavate ; antenuje 



