Oct.Dec., 1919 Bulletin of Brooklyn Entomological Society 187 
Stenus imornatus Csy. (1). 
Stenus colonus Er. (1). 
Stenus czenicolus n. sp. 
Form rather robust. Pubescence very fine, sparse, griseous surface 
very highly polished. Head large, more than twice as wide as long, a 
third wider than the thorax; interocular surface twice as wide as the eye; 
interocular sulcations very feeble, very coarsely and closely punctate; 
punctures distant by much less than their diameters; median and lateral 
convexities very feeble, sparsely and irregularly punctate with large, 
smooth callosities; ocular lines meeting at nearly two lengths in advance; 
antenne very distinctly longer than the width of the head; basal joint 
rufous, the second piceous, the remainder black; funicular joints very long 
and slender, seventh joint nearly twice as long as wide; palpi dark piceous, 
terminal joint black. Thorax widest at the middle where it is as wide as 
long; base and apex about equally wide; sides feebly arcuate anteriorly, 
rather strongly sinuate posteriorly, base truncate, apex slightly arcuate; 
very coarsely and irregularly punctate, punctures distinctly larger than 
those of the head and just as dense; median fusiform smooth space and 
an irregular smooth space either side. Elytra at base very slightly nar- 
rower than the head, very slightly wider at apex; sides rather strongly 
arcuate, widest at middle; outer apical angles not prominent; apex feebly 
emarginate; as wide as long; suture one fourth longer than the thorax; 
punctures very coarse and deep, more widely spaced on the disk than those 
on the thorax, as close as the latter on the sides; much sparser along the 
suture, where the disk is strongly elevated. Abdomen at base slightly 
narrower than the contiguous elytra, arcuate and feebly convergent poste- 
riorly; first segment only with a side margin, two, three and four strongly 
constricted at base, much more finely, sparsely and irregularly punctate 
than the elytra; transverse carine obsoletely tricusped. Legs moderately 
long, very dark fuscous to nearly black in color; tarsi elongate, first joint 
of the posterior tarsi longer than the fifth, as long as the second and third 
together, fourth joint deeply bilobed. 
Length 3 mm.; width .75 mm. 1 6. 
Male—fifth ventral segment very broadly and feebly emarginate at 
apex, more densely pubescent’ on the middle, sixth segment with a small 
and acutely triangular emargination. 
This species belongs in the subgenus Hypostenus Rey (Ann. 
Soc, Linn.) lyon) XOX p. 1638 Areus \Csy.. parti). la 
Colonel Casey’s synopsis of Areus it would be placed among the 
small species with black legs in the division with unmargined ab- 
domen, and would require a separate section having the thoracic 
punctures very large, deep and close-set. 
