CETONIIN.E 3 8 3 



long as the tibiae, slightly shorter in the female; fifth ventral with a 

 transverse fascia of pale tomentum, narrowly interrupted medially, 

 much retracted in the female. Length (18 cf , 10 9) 8.6-11.2 mm.; 

 width 4.5-6.0 mm. Massachusetts to Wisconsin, Iowa, Louisiana 

 and North Carolina. [Trichius piger Fabr., drummondi G. & P. 



and rotundicollis Kirby] piger Fabr. 



Body a little larger and still stouter, deep black throughout, the elytra 

 never paler even in part; head nearly as in piger, the eyes similarly 

 prominent, the clypeal sinus rather deep; prothorax with plentiful 

 pubescence and fine, very close-set punctures, in outline nearly as in 

 the preceding in each sex, but rather less transverse in the female, 

 very nearly as long as wide in the male, in which sex the large to- 

 mentose spot at each angle becomes almost obsolete; scutellum 

 narrow, longer than wide, with the usual close punctures and long 

 pubescence; elytra shorter than wide, especially in the female, the 

 pubescence and general sculpture as in piger, each with a short dash 

 of tomentum along the suture behind the scutellum and sometimes a 

 few points in the first depressed interval, the lateral transverse bars 

 long and unusually oblique, the posterior making an angle of about 

 20 with a transverse line and extending far inside the median axial 

 line; pygidium (d") slightly wider than long, strongly convex, with 

 the hairs short and not very dense, or ( 9 ) very large and transversely 

 oval, feebly convex and with long, dense and very conspicuous pu- 

 bescence, in both sexes with the usual close-set wavy serrulate lines 

 and elongate lateral spot of tomentum; hind tarsi (c?) thick, nearly 

 twice as long as the tibiae, or ( 9 ) less than one-half longer than the 

 tibiae and not so thick. Length (4 cf , 4 9 ) 10.5-12.8 mm.; width 



5.8-7.2 mm. Texas. [Trichius texanus Horn] texanus Horn 



A Nearly similar to texanus in color, lustre, sculpture and pubescence; 

 male having the clypeus a little larger but similarly sinuate, the 

 prothorax as in texanus, the scutellum rather different, being 

 broader, in fact not much longer than w r ide; elytra similar and with 

 the posterior of the two lateral transverse lines of white tomentum 

 oblique, but the first depressed interval is densely and evenly 

 tomentose from basal three-sevenths nearly to the apex; pygidium 

 (d 71 ) very much larger and broader than in the same sex of texanus 

 and with the vestiture of whitish hairs longer and denser; hind tarsi 

 similarly long but not so thick. Length (i cf). ii.o mm.; width 

 6.0 mm. New Mexico (Cloudcroft 9000 feet elevation), Knaus. 



monticola n. subsp. 



4 Pygidium ( 9 ) with rather dense, moderately long pubescence, be- 

 coming still longer and denser in a large rounded area near the apex. 

 Body stout, rather large in size, black throughout as in texanus, 

 head shorter and broader than in that species, the eyes somewhat 

 larger, the clypeal sinus distinctly shallower, nearly as in obesulus; 

 prothorax as \n-texanus and similar in outline, sculpture and vesti- 

 ture, the punctures frequenty sparse in a large sublateral area near 

 basal third, the tomentose spots smaller; scutellum and elytra as in 

 texanus, except that the two transverse lateral bars of tomentum are 

 equal in length, the posterior much shorter than in that species and 



