STAPHYLINID.E. 67 



Group II Type imbricatus Csy. 



The species of this group differ greatly from those of Group I 

 in the sculpture of the abdomen, there being a distinct and irregular 

 coarse micro-reticulation and, besides this, two straight, anteriorly 

 and posteriorly widely flaring lines from each puncture, each line 

 uniting with the anterior or posterior lateral puncture in quincunx 

 order, thus producing an imbricate appearance. The male has 

 the very convex pronotum impressed nearly as in caviceps and 

 paratus, of the preceding group, but the head seems to be unmodified 

 in that sex. 



The following four species are allied more or less evidently to 

 imbricatus: 



Tinotus texanus n. sp. Stout, moderately convex, rather dull, the 

 abdomen less so; color piceous-black, the elytra distinctly, the abdominal 

 apex faintly, paler, the legs pale brownish-flavate; integuments very finely 

 but strongly micro-reticulate, the abdomen with coarse faint reticulation; 

 punctures fine and rather close-set throughout, the pubescence short, 

 rather close, fine, dusky and indistinct anteriorly, coarser, paler and more 

 visible on the elytra, longer, finer, sparser and not at all conspicuous on 

 the abdomen; head three-fifths as wide as the prothorax, wider than long, 

 subparallel, the sides feebly arcuate, the eyes not at all prominent, at 

 nearly their own length from the base; antenna blackish, paler basally, 

 moderately short, rather slender, only moderately incrassate distally, 

 the second and third joints much elongated and subequal (9 ), the third 

 almost imperceptibly the longer, fourth nearly as long as wide, the outer 

 joints short, compact, not quite twice as wide as long, the last fully as 

 long as the two preceding, obtusely pointed; prothorax four-fifths wider 

 than long, the sides moderately rounded, subparallel basally, converging 

 anteriorly from about the middle, the base rounded; elytra fully as wide 

 as the prothorax, the suture not quite so long as the latter, the oblique 

 sides of the apex distinctly sinuate; abdomen nearly as wide as the elytra, 

 subparallel and with moderate margins basally, only very slightly 

 narrowing apically, the fifth tergite four-fifths as wide as the base, nearly 

 one-half longer than the fourth, the fifth (9) truncate, the truncature 

 with extremely minute close acute crenulation. Length 1.75 mm.; 

 width 0.6 mm. Texas (Galveston). 



Allied rather closely to imbricatus, the type differing from the 

 female of that species in the less transverse prothorax and elytra 

 and in the far less unequal second and third antennal joints, the 

 third in imbricatus being notably longer than the second. 



The females in most of the species of this group have at the 

 base of the pronotum two small and feeble impressions, separated 

 by a little more than the width of the scutellum. 



