Coleopterological Notices^ VI. 67^ 



Prothorax rounded at the sides anteriorly, thence straight and oblique to the 

 basal margin. 

 Head simply and verj' remotely punctate; elytral pubescence very short and 

 rather closely decumbent. 

 Prothorax always pale, riifous. 



Elytra with a basal, median, and apical black fascia, varying to almost 

 entirely black, the basal fascia obsolete in the paler forms. 



1. laetus 

 Elytra pale, each with a median discal spot of black ; punctuation very 



much closer r?. supplex: 



Prothorax black or piceous-black. 



Abdomen minutely and rather densely punctate throughout; elytral 



punctures sparse 3. monitor 



Abdomen less minutely and very remotely punctate toward base; 

 elytra less sparsely punctured, the prothorax more elongate. 



4. coiifinis 

 Head with longitudinal and vermiculate scratches intermingled with the 

 sparse punctures; elytra with longer, coarser, more erect and con- 

 spicuous XJubescence; body black, the elytra sometimes paler. 

 Black throughout, the head and pronotum not impressed. 



5. iiigritulus 



Black, the elytra piceous-brown and relatively longer and larger; occiput 



impressed in the middle at base; pronotum impressed along the median 



line toward base 6. ai'canus 



Prothorax angulate at the sides anteriorly, oblique and broadly sinuate thence 

 to the liase; smaller, pubescent species. 

 Head finely and ver^' remotely punctate; elytra each with three or four 

 series of long stiff erect seta;. 

 Elytra parallel and fully three-fourths longer than wide. 



7. desei'toriim 

 Elytra much shorter, scarcely more than one-half longer than wide; eyes 

 a little larger; pronotal punctures decidedly less dense. 



8. proiuiiiens 

 Head more coarsely and subrugosely, though not densely, punctate, and 

 more plentifully pubescent. 

 Body slender, flavate throughout, the elytral setse distinct but very 



sparse; hiimeri less broadly exposed at base 9. foriiiicetoi'Um 



Body stouter, the elytra more broadly truncate at base, Avith the setae not 

 evident on the disk, the suture and apex feebly clouded with a black- 

 ish tint 10. suspectus 



The species of each of the three groups are rather closely allied 

 among themselves, but, as far as it is possible to judge, are dis- 

 tinct as above defined. 



Annals N. Y. Acad. Sci., VIII, Oct., 1895.— 46 



