STAPHYLINID^;. 



remainder of the pronotum; it also differs in its darker coloration, 

 shorter elytra, sparser abdominal punctures and much more feeble 

 radiating lines extending from the latter. 



Tinotus pectinellus n. sp. Almost parallel, rather slender and convex, 

 dull, the abdomen somewhat strongly shining; color dark piceous-brown 

 throughout, the legs pale, brownish-flavate; head large, convex, wider 

 than long, two-thirds as wide as the prothorax, the eyes moderate; 

 antennae (9) pale piceous, still paler basally, short, rapidly incrassate 

 distally, the third joint barely at all longer than the second, fourth 

 much shorter than wide, the outer joints short, fully twice as wide as 

 long, the tenth asymmetric, shorter on its inner side, the last moderate, 

 conoidal; prothorax of the usual form, three-fourths wider than long, 

 with rounded sides which are more converging anteriorly, the base 

 rounded; elytra equal in width to the prothorax, parallel, the suture 

 evidently shorter than the pronotum but not so greatly shorter than the 

 flanks as it is in most of the species; abdomen very nearly as wide as the 

 elytra, perfectly parallel throughout to the tip of the fifth tergite, where 

 the thick margins become fine, giving an impression of slight apical 

 narrowing; sixth tergite (9) with the feebly sinuato-truncate apex 

 minutely, closely and subacutely pectinulate. Length 1.6 mm.; width 

 0.43 mm. Arizona (Tugson), Wickham. 



Distinct in its narrower, nearly parallel form and parallel ab- 

 domen; the two feeble basal impressions of the female pronotum, 

 visible in the other species of this group, are wholly obsolete here. 



A female specimen from Gallup, New Mexico, collected by Wick- 

 ham, resembles so closely the female of imbricatus from New York, 

 that it may possibly be identical ; the differences, at any rate, seem 

 rather insignificant in the only two exponents at hand; it is very 

 slightly less stout and with somewhat denser sculpture. 



In the two following species the abdominal sculpture is much 

 denser than in any of the preceding, though in parvicornis it is of 

 the same character, at least toward base: 



Tinotus parvicornis n. sp. Rather slender and convex, subparallel, 

 alutaceous, dark piceous-brown, the head and the abdomen, except the 

 fine apical margins of the segments, blackish, the elytra but faintly 

 paler, the legs pale; punctures anteriorly very fine, those of the anterior 

 parts very minute, not asperate and each at the centre of a minute 

 ring, those of the elytra coarse and strongly asperate, of the abdomen 

 rather close-set and asperate throughout, the first two tergites with 

 regular imbrication as in the preceding species, the others with the lines 

 from the punctures less diverging, coming inside of their more lateral 

 neighbors and at thesametime more asperate than in the preceding species; 

 vestiture inconspicuous; head fully three-fifths as wide as the prothorax, 



