CERAMBYCIDJE 273 



the most part black; head finely, very densely punctate; antennae black, 

 two-thirds as long as the body (cf ), with the outer sensitive areas smaller 

 and feebler than usual, being half to three-fourths as long as the joints, 

 or half as long as the body (9 ), with the sensitive areas small and basal; 

 prothorax nearly as in velutimis, convex, the punctures rather small, well 

 separated, closer anteriorly; elytra elongate, cuneiform, less so and with 

 more rounded sides in the female, deeply and conspicuously though not 

 coarsely punctate, the punctures well separated basally, becoming very 

 close and a little smaller distally, the apices narrowly and scarcely ob- 

 liquely truncate, the outer angle not prolonged. Length (cf 9 ) 1 1.5-13.0 

 mm.; width 4.0-4.5 mm. Kansas and Colorado. 



The fifth ventral in the male is somewhat tumid and has a large 

 and very deep apical excavation, limited by acutely elevated sides 

 posteriorly and extending to basal third, gradually narrowing and 

 becoming extinct. The female is much less abundantly taken than 

 the male, as usual in the genus. 



Typocerus caligans n. sp. Form narrower (cf) or stouter (9) than 

 in the preceding, rufo-testaceous, the under surface and tarsi picescent; 

 vestiture pale and, as in the preceding, sparser than in vehttinus, not so 

 concealing the thoracic surface; head less finely, closely but more irreg- 

 ularly punctate than in the preceding, the antennae blackish, gradually 

 pale basally, strongly serrate distally (cf ) and with the sensitive areas 

 paler in tint and very distinct, two-thirds as long as the body, or ( 9 ) 

 shorter though otherwise similar, incrassate and serrate distally, with 

 the sensitive spots smaller; prothorax nearly similar; elytra narrow and 

 elongate-cuneiform (cf), or very broad, with more rounded sides (9), 

 very feebly stibobliquely truncate at the tips, red-brown in color, with 

 scarcely any maculation (cf ), or with three nubilously paler bands and 

 basal area (9 ), the two medial uniting on the suture. Length (cf ) n.o, 

 (9 ) 13-5 mm -; width (cf ) 3-9, ( 9 ) 4-7 mm. Kansas. 



The male sexual modification of the fifth ventral is nearly as in 

 confluens, except that the very deep pit is shorter, not extending 

 behind the middle, more abruptly ending and with similarly elevated 

 side walls posteriorly. It differs from confluens in color, in the 

 greater sexual disparity in size and outline and notably in the 

 more incrassate distal part of the antennae in both sexes. 



In nearly all collections velutinus is represented by a rather 

 heterogeneous lot of material, and I have made an attempt, recorded 

 below, as far as my own is concerned, to segregate the specimens into 

 what appear to be distinct species; they differ among themselves 

 quite evidently in the form of the elytral apices, extent of the 

 antennal sensitive spaces, degree and extent of maculation, sculpture 

 of the prothorax and other features and may be known as follows: 



T. L. Casey, Mem. Col. IV, Oct. 1913. 



