NORTH AMKRICAN COLEOPTERA. 7 



Calif. — Many specimens were obtained by Mr. Ricksecker on 

 Willow. Collections of Horn, Ulke and LeConte. Only differs 

 from immacnlate /ey;e^'/j'c/^«,s by the lead black color, the denser j)unc- 

 tnation and opaqne surface, and is possibly not distinct. In his de- 

 scription Motschulsky says " iuterstitiis distincte puuctatis, fere trans- 

 versim rugatis ; laminis coxarum quadrato dilatato," which seems to 

 apply l)est here. He also says that it is smaller than teiiebrosus, 

 which would forbid a reference to the species described further on as 

 latiascalm Esch. to which the name aviplicollis is more appropriate. 



2. C fenestratiis Lee— Form of the last, shining, black, or with the ely- 

 tia four spotted, pubescence fuscous. Antennae black, as in the last. Head and 

 thorax finely not densely punctulate. with coarser punctures, more or less evi- 

 dent intermixed. Thorax convex, usually broader than long, with sides strongly 

 rounded and narrowed before, less narrowed behind, more or less distinctly im- 

 pressed at middle, basal angles obliquely truncate above, produced beneath, the 

 carina not joining the submarginal line, plicpe long, distinct. Elytra with sides 

 rounded, strife punctate, intervals moderately or feebly convex, finely punctu- 

 liite and sometimes wrinkled, usually with an irregular or rounded yellow spot 

 in front of middle and another before the apex of each elytron ; in one specimen 

 the anterior spot is prolonged obliquely forward to the humerus. Body beneath 

 moderately punctulate, the coarser punctures less evident on the sides of the 

 prothorax ; submarginal line of prothorax cariniform at base, gradually impressed 

 towards the tip, which usually reaches the middle or the anterior third ; inter- 

 coxal process of prosternum margined behind; hind coxal plates distinctly di- 

 lated behind. Legs as in the last, black. Length .23-.27 inch. ; 6-7 mm. 



Maculate specimens have been seen from Nebraska, Kansas, Col- 

 orado, Utah, Montana, Washington Territory, Oregon, California 

 and Nevada; and immaculate specimens from Nebraska, Utah and 

 British Columbia. 



Two s|)ecimens from Utah, unspotted, are somewhat intermediate 

 in punctuation between the usual form and the preceding species. 

 In both species the base of the side pieces of the prothorax is but 

 feebly sinuate inside the exterior angle. The sexes do not differ 

 much in size or form. 



iNIessrs. Hubbard and Schwarz mention this species with an inter- 

 rogation in their I.,ist of Coleoptera of Michigan (Proc. Am. Phil. 

 Soc. xvii, p. 65()), but the locality seems doubtful. I have also seen 

 specimens labeled Pennsylvania, a scarcely possible locality. 



3. V, cardisce Say. — Very convex, narrower and more acuminate behind 

 with a more yellowish pubescence. Antennae black or piceous, serrate, stouter 

 in the % and longer than the head and thorax, much shorter in the 9- Head 

 and thorax punctulate with coarser punctures intermixed. Thorax very convex, 

 not imjiressed at middle, in the % sometimes a little longer than wide, sides 



