Goleopterological Notices, VI. 077 



iniinitely, very densely punctate and pubescent, more sparsely so in the mid- 

 dle at base. Length 2.6 mm. ; width 0.85 mm. 



Arizona (Tucson). ' 



Differs from Isetus in its stouter form, shorter prothorax, much 

 denser and more conspicuous punctuation and pubescence and in 

 coloration. It is represented by a single specimen which I took 

 some years ago at the locality indicated. 



3. y. monitor n. sp — Narrow, highly polished, black, the i)ronotum 

 feebly picesceut toward base, the elytral suture ver^- finely rufescent; antennaj 

 fuscous: under surface and femora blackish, the tibiae and tarsi paler. Head 

 sub(iuadrate, finely, remotely punctate, the punctures uneven in distribution 

 and unequal in size; eyes rather small, shorter than the tempora; base broadly 

 arcuato-truncate and unimpressed; antenmc barely as long as the head and 

 prothorax, feebly incrassate, the penultimate joints scarcely as long as wide. 

 Prothorax equal in width to the head and similarly punctate, the punctures a 

 little more distinct toward base, just visibly longer than wide; sides broadly 

 arcuate anteriorly, straight and ol)li(|ue behind to the bastd margin, which is 

 distinctly tumid; collar short; surface strongly, evenly convex. Elytra three- 

 fourths longer than wide, not cjuite twice as wide as the prothorax, very feebly 

 dilated behind the middle, thence obliquely and gradually narrowed to the 

 apex, which is conjointly rather narrowly rounded; disk feebly impressed at 

 the scutellum, narrowly canaliculate at each side of the suture in apical third 

 or fourth, strongly but very sparsely punctate, the punctures becoming minute 

 behind: humeri broadly exposed, rounded. ylA'/ome« minutely, densely punc- 

 tulate, reticulate and puliescent. Lf^/s rather short, the femora distinctly in- 

 crassiite. Length r2.3 mm.; width 0. Go mm. 



Louisiana (Morgan City); Texas (Galveston). 



This species is allied rather closely to Isetus, but differs in its 

 smaller size, narrower form, black prothorax and elytra, and in 

 the male sexual characters. The vestiture of the upper surface is 

 similar to that of I set us, the el^'tral hairs very short but rather 

 coarse and becoming still smaller toward apex. 



In this section of the genus the genital or sixth segment is 

 peculiarl}- modified, the median emargination of Anthicus becom- 

 ing a deep cleft, the two lobes thickened and bent strongly down- 

 ward, the tips inflexed and individuall}^ emarginate ; the intromit- 

 tent organ is extremely slender and elongate, finel}^ channeled be- 

 neath, the apex graduall}' finely acuminate and slender, and bent 

 downward. In the present species merely the tip is abruptly- and 

 feebly bent downward, while in Ifetiis the spicule is gradually 

 curved. In laetus the fifth ventral of the male is broadly rounded 

 behind, with its surface minutely, densely granulato-reticulate 



