NORTH AMERICAN COLEOPTERA. 187 



the coarsest punctures are close to the marsin and extend around the ai)ex; 

 color pale yellow, sutural vitta narrow, entire, median vitta very narrow, sub- 

 marginal also narrow, curving at base around the unihone, nearly joining the 

 median. Epipleurse pale, narrowly piceous within. Body beneath and legs 

 reddish yellow. Abdomen shining, s)iarsely punctate, more coarsely at tlie sidts. 

 Length .25— .28 inch. : 6.5-7 mm. PI. V, fig. 14. 



This species is remarkable in the very slender elytral vittre, being 

 in this genus the analogue of temucomis in Disonycha. The thoracic 

 margin is more widely explanate than usual in this series. The male 

 is shorter and broader, the thorax at base not wider than at middle. 

 In the female the terminal joint of the antennae is entirely pale, in 

 the male only the apex of the joint. 



Occurs in southern Arizona (Morrison). 



13. <E. iniiiiatR Fab. — Oval, convex, sometimes slightly oblong, moder- 

 ately shining, ferruginous beneath, yellow above, thorax with a brown fascia, 

 elytra with a sutural and median vitta. Antennse not as long as half the body, 

 piceous, three basal Joints paler, third joint a little shorter than the fourth. 

 Head ferrusjinous, carina tuberculiform, the tubercles distinct, vertex and occiput 

 coarsely punctured, closely near the eyes. Thorax thi'ee times as wide as long, 

 sides arcuately narrowed to the front, lateral margin moderately explanate, front 

 angles dentiform, disc spar.sely punctate, yellow, a brownish cetitral space usually 

 forming a broad fascia; scutellum black. Elytra scarcely wider at base than the 

 thorax, humeri rounded, umbone distinct, smooth, surface variably punctate, 

 either moderately coarse and dense, or tine and indistinct, with all intergrades ; 

 color yellow, with the sutural black vitta entire, a median vitta beginning at the 

 umbone and nearly reaching the tip. Epipleurse pale, narrowly piceous within. 

 Pody beneath and legs reddish brown, the anterior and middle tibipe and tarsi 

 darker. Abdomen shining, coarsely sparsely punctate and with few hairs. 

 Length .20 -.25 inch. ; 5—6.5 mm. Plate V, fig. 13. 



This species .shows the same style of variation as in petauristd. 

 x\s a rule the males are less frequent than the females, and their 

 form shorter and more convex than the other sex. The punctuation 

 varies in degree, some few being quite as in vlans (var. scriptico/lis), 

 although less dense, while in others the punctuation Is more sparse, 

 less distinct, and near the apex quite obliterated. The median vitta 

 is usually as wide as the yellow space next the suture, but in others 

 either broader or narrower. 



After a study of the material before me I am satisfied that jocosa 

 Harold is founded on a male of this species. The thorax is aj)par- 

 ently less than three times as wide as long and scarcely punctate, 

 but in the series before me from all parts of our country, numbering 

 thirty-six, I can find no reason for recognizing the form as distinct. 



Occurs everywhere east of the Mississippi and in Texas. 



