186 THE CANADIAN ENTOMOLOGIST. 



marginicoIHs, differs only from the above mentioned specimen by having 

 the thorax black, with side margins near base, more or less narrowly pale. 

 If the two should prove to be the same, aulicus Er. as the older name, has 

 to be accepted for this species. 



CoUops argiitus Fall — Occ. Pap. Cal. Acad., VI 1 1, p. 242. 



A few specimens from the Huachiica Mts., Arizona, agree closely 

 with the description of this species, except that the abdomen is red, with 

 last segment black. The abdomen in the description is said to be 

 black in some specimens, and rufous at middle near base in others, which 

 indicates that the colour of abdomen at least is variable. 



CoUops femoratus^ new species. 



In coloration, nearest to piclchellus Horn, but not quite as elongate ; 

 elytra more finely and closely punctate ; basal antenna! joint of male not 

 excavate on the inner side ; front and middle femora and hind femora at 

 base red, tibiae and tarsi black. Length 4 mm. 



Huachuca Mts., Arizona. 



The ventral segm.ents are red in a {^"^ males ; in one male and in the 

 females they are spotted with black at sides. A female from Brownsville, 

 Texas, with clear, red abdomen, does not seem to differ otherwise from 

 the x\rizona specimens. 



Collops scuiel/atus, new species. 



Red; metasternum and palpi black ; head with central .bluish spot 

 and elytra with basal and elongate-oval, blue, apical spots ; the two spots 

 on each elytra narrowly divided. Thorax narrower than in pidchellus, 

 argjitus ox femoratus \ scutellum clear-red. Basal antennal joint rather 

 slender, feebly enlarged towards apex, and not excavated on inner side ; 

 the outer joints feebly dilated. Length 3.25 mm. 



One male. New Braunfels (O. Dietz.) 



The coloration, the scarcely apically dilated basal joint of antennae, 

 the red scutellum and the more shining elytra will separate this from all 

 previously described maculate species. 



Collops tibialis, new species. 



Head blue, clypeus and a large, oval, median spot from the clypeus 

 to almost the middle of the head, reddish. First two antennal joints of 

 male red, the outer blackish and feebly serrate. Proihorax shining, red, 

 feebly punctate at middle, distinctly so at sides. Elytra with ^two large 

 blue basal spots connected at suture, and oval sub-apical spot on each 



