FALL AND COCKERELL. 



229 



California, Tuolumne Co. and Lake Tahoe. 



The type is a male from the first named locality. Two females 

 from Lake Tahoe are associated with some confidence. They have 

 the coarser pronotal punctuation as in the type, and the sides of the 

 prothorax, while somewliat arcuate, are less strongly so than in 

 females of nugalis. 



AthOM»« xpeoiilifer n. sp.— This name is proposed for a small black spe- 

 cies agreeing very nearly in all respects with nigripilis, hut differing from it and 

 every other species of Athotis known to me in having an oval polished impunc- 

 tatearea on each side the median line of the prothorax. These impunctate 

 areas are a little in advance of the middle, occupy a little less than one-third the 

 pronotal length and are separated by about their own width, the space between 

 them and elsewhere being normally closely punctate. Length 9.5 mm. ; width 

 2.5 mm. 



Tacoma, Washington. A single example collected by myself in 



July. 



The third tarsal joint is produced in a short narrow lobe; fourth 

 joint not distinctly lobed. 



.4thous qiiadricollis n. sp.— Moderately slender, piceous-brown, an- 

 tennffi and lower surface somewhat paler; pubescence pale, moderately plentiful. 

 Second joint of antennae about two-thirds the length of the third, the latter two- 

 thirds as long as the fourth ; fourth joint widest, nearly twice as wide as the 

 third and about two-thirds as wide as long, outer angle rounded. Front broadly 

 concave from side to side, head closely punctate. Prothorax as wide as long or 

 virtually so, widest with the sides very broadly rounded just behind the middle, 

 very feebly sinuate posteriorly, the angles scarcely at all divergent; straight and 

 just visibly sinuate anteriorly; surface rather finely punctate, the punctures 

 simple and separated by from one to two or more times their own diameters at 

 the middle, a little closer laterally, becoming umbilicate only near the margins; 

 hind angles with a very short fine carina. Elytra and lower surface about as 

 usual. First joint of hind tarsi evidently longer than the next two ; third joint 

 with a moderately developed broad lobe ; fourth joint not lobed. Length Hi mm. 



(California (Lake Tahoe) ; one male. 



A second male from an unrecorded locality has the pronotum 

 minutely longitudinally strigulose and with a fine median impressed 

 line; this sculpture is unusual and perhaps accidental. The short 

 prothorax, form of frontal impression, and relative dimensions of 

 joints 2-4 of the antennse distinguish this species at once from any 

 of the preceding. 



Athoiis palpalis n. sp.— Dark form, elytra slightly paler, pubescence 

 pale, conspicuous. Similar to quadricollis in its broadly impressed front and in 

 aute'nnal formation, joints 2-4 increasing in length, the fourth much wider than 



TK.A.NS. AM. ENT. SOC. XXXIII. JUNE, 1907. 



