CETONIIN/E 279 



2 Mesosternal process but slightly reflexed, obtusely conoidal. Body 

 stout, feebly convex and opaque black above, with the sides through- 

 out broadly and irregularly straw-yellow, this border broadly and 

 triangularly prolonged inward just behind the middle of the elytra, 

 enclosing one to three black spots and with the irregular internal 

 apex of the triangle very near the suture; anterior to this there are 

 one to three short slender prolongations from the pale margin; on 

 the pronotum the black area extends narrowly along the middle 

 almost to the apex, the sides of this narrow area prolonged posteriorly 

 in slender pale lines and flanked on either side anteriorly by a small 

 black spot; in the broad pale margin, at about basal third, there is 

 an obtuse angular inward extension; in the male, the pale areas are 

 reduced in width throughout and, on the pronotum, the black area 

 almost attains the apex very broadly; the head is always pale, except 

 at the apex of the clypeus, and there is usually a small black basal 

 spot; elytra slightly narrower and more cuneate in the male, in which 

 sex the sharply and deeply, vermicularly rugose pygidium has a 

 few small irregular yellow spots near the apex, the under surface 

 broadly yellow or opaque toward the sides and the hind tarsi but 

 little shorter than the tibiae. In the female the vermiculate rugae 

 of the pygidium are not so coarse and are less dense, with yellow 

 spots less apparent, the under surface of the body polished through- 

 out, the sides of the metasterna somewhat yellow and the hind tarsi 

 very much shorter, about two-thirds as long as the tibiae; in both 

 sexes the pygidium has close-set, short but rather slender erect 

 grayish hairs, less abbreviated however than in chevrolati. Length 

 (i cf, 4 9) 20.5-21.5 mm.; width 11.4-12.2 mm. Texas. 



sallei Schaum 



Mesosternal process almost vertically reflexed, more obliquely conoidal 

 and frequently with a small tubercle on its anterior convex face, 

 which basally, as in the preceding species, is densely clothed with 

 very stiff black hairs 3 



3 Form stout, larger and rather more elongate than sallei, opaque 

 velvety-black or brownish-black above, the head, pronotum and 

 mes-epimera without pale maculation, the elytra with a narrower 

 straw-yellow margin, equal from base to apex, but with about two 

 short slender inward extensions, an at first posteriorly oblique fasciate 

 offset, beginning at the middle and more or less extended internally, 

 and, just behind this, an anteriorly oblique offset which, as a rule, 

 joins the median offset at outer two-fifths, the markings slightly 

 broader throughout in the female but otherwise similar in the sexes; 

 the opaque pronotum is sometimes very feebly and indefinitely 

 mottled linearly with a more grayish black. Male with the ver- 

 miculate grooves of the pygidium sharply incised, becoming shorter, 

 more detached and more widely separated by opaque yellowish 

 indument apically, the entire under surface, excepting the middle of 

 the metasternum, opaque blackish-olivaceous; hind tarsi more than 

 three-fourths as long as the tibiae. Female having the pygidium 

 more evenly and densely vermiculate with sharply incised grooves 

 throughout, without intervening opaque indument at any part, 



