296 MEMOIRS ON THE COLEOPTERA 



Goes Lee. 



This genus is easily distinguished from the preceding by the 

 much shorter and more hairy basal joint of the antennae, which is 

 generally scarcely more than twice as long as wide, and sometimes 

 less, and always much shorter than the fourth joint as in Ptychodes; 

 also in the less obese form of the body and less dilated, though 

 similarly well developed tarsi; the antennae are but little longer 

 than the body even in the male; the type of elytral ornamentation 

 is the broadly, indefinitely and generally very brokenly fasciate, 

 sometimes becoming faintly nubilous or virtually uniform. We 

 have the following five or six species, of which tigrinus is the generic 

 type: 



Scutellar vestiture broadly parted by a glabrous impressed line, which 

 broadens basally. Body moderately stout, piceous-black, the elytral 

 vestiture very short, dense, white, mingled with smaller dark brown 

 areas which are very irregular, somewhat nubilously denned and 

 forming two broad broken fasciae, one near basal fourth, the other 

 more oblique and before apical fourth; antennae pale, the tips of the 

 joints black, the basal joint black, the bristling black hairs only 

 visible beneath and sparse; punctures of the head and prothorax very 

 fine, sparse. Length (9 ) 25.5 mm.; width 8.0 mm. Pennsylvania. 



[tomentosus Zieg.] tigrinus DeG. 



A Nearly similar, the shorter elytra being partially due to sex in the 

 single type, more nearly black in color, the dark mottling of the 

 elytra exceeding in area the white and more sharply defined 

 than in the preceding, the punctures rather coarse and more 

 irregularly disposed, having certain small impunctate areas near 

 the base; scutellum narrower; antennae darker, the basal joint 

 bristling with erect setae through a much greater part of its cir- 

 cumference; punctures of the head coarser, those of the pronotum 

 mingled with coarse and sparse punctures. Length (cf ) 23.0 mm. ; 



width 7.1 mm. Texas marmoratus n. subsp. 



Scutellar vestiture not or only very finely parted along the middle. . . .2 

 2 Larger species, always over 15 mm. in length, the elytral vestiture 



bicolored or approximately so 3 



Small species, the elytral vestiture tricolored 5 



3 Form stouter, blackish-brown, the elytra densely clothed with very 

 short ochreous hairs, becoming very slightly more yellow apically, 

 having the basal fifth of the length and a broad and rather sharply 

 defined solid transverse fascia at apical third, which is interrupted 

 at the suture, very dark umber-brown; antennae very pale, slender, 

 the basal joint dark brown, herissate sparsely almost throughout; 

 punctures rather strong and close on the occiput, smaller and close 

 on the prothorax, coarser, less close and basally graniferous on the 

 elytra. Length (cf 9 ) 17.0-25.0 mm. ; width 5.2-7.5 mm. Penn- 

 sylvania and Wisconsin pulcher Hald. 



