468 AMERICAN PACHYBRACHYS (cOLEOPTERA) 



Hubbard & Schwarz Coll.); Key West (Leng Coll.). Alabama: IMobile and 

 vicinity (Soltau in Nat. Mus. Coll.). Louisiana: Covington, June 2 (Soltau), 



This species is unrecognized in almost all American collections, 

 the specimens when present being included with trinotafus. 

 Oddly enough all specimens under the latter name in the Horn 

 Coll. are pulvinatus, the true trinotatus not being represented at 

 least in the material sent me. The single example in the Blan- 

 chard Coll. is correctly labeled pulvinatus ("teste Austin") and 

 those from same source in the Snow Coll. are also correctly identi- 

 fied. I have seen the Suffrian type or cotype sent Bow'ditch for 

 examination. 



149. Pachybrachys confusus Bowilitch 



Black, head with three or four small yellow spots, prothorax 

 with the extreme anterior edge, a narrow median anterior line and 

 two small basal spots yellow; elytra with the basal raised margin, 

 some small spurs or spots adjacent thereto, the dot-like shield, a 

 lateral spot at the posterior third and the apex, yellow; surface 

 alutaceous, head and prothorax opaque, elytra dull or feebly shin- 

 ing. Eyes widely distant, front without ocular lines, elytral 

 punctures diffuse, front claws rather strongly enlarged in the 

 male. Ave. length 3.3 mm. District of Columbia to Louisiana. 



Head not at all wider than the thoracic apex, rather finely not densely punc- 

 tate; eyes separated in the male by two and one-half times the length of the 

 basal antennal joint or by the vertical length of the eye, and in the female by 

 fully three times the length of the basal joint and by distinctly more than the 

 vertical length of the eye. Antennae rather slender, basal joint black, fol- 

 lowing joints brownish yellow, outer ones dusky, tenth joint three times as 

 long as wide. 



Prothorax feebly to moderately narrowed in front, sides very broadly curved, 

 punctuation fine not close, nearly evenly distributed, side margins not smoother. 

 The yellow marks named in the above diagnosis may disappear except for the 

 anterior median line, and in one specimen this is reduced to a mere dot. 



Elytra more coarsely punctate than the prothorax, the punctures confused 

 throughout, with at most some fragments of striae toward the sides; shiekl 

 small, rounded and somewhat raised. 



Pycjidium and body beneath black. Front thighs with an oval yellow sub- 

 apical spot, middle and hind thighs black with the apical one-half or one-third 

 yellow, knees black, tibiae yellow in about basal half. 



Length 2.9 to 3.5 mm.; width 1.5 to 1.9 mm. 



Distribution. — Mississippi: Natchez (Bowditch Coll.), a^ type. Louisiana: 

 Covington, June 2 (Soltau— Nat. Mus. Coll.). Alabama: Mobile, May 10 



