58 [May, 1846 



EUSTROPHUS, IlHg. 



1. E. 4-maculatus. Dull rufous ; elytra black, with four fulvous spots. 2J 

 1. long ; lj 1. wide. Pennsylvania. 



Dull rufous or chestnut red, finely pubescent, finely rugose-punctured : head 

 color of the thorax ; antennas and palpi rufous, the former with the last joint of 

 the clava paler ; eyes black : thorax each side of the middle at base with a 

 short, acutely impressed line; scutellum transverse, rounded at tip, punctulate: 

 elytra black, with very faint traces of longitudinal obtuse, raised lines ; each 

 with two large fulvous spots, of which the first is posted on the humeral angle, 

 and extends obliquely to the subsutural margin, where it is narrower than 

 at its origin ; second or posterior spot is a little before the apex, and is 

 transverse, and reaches nearly to the suture : abdomen paler than the thorax ; 

 feet and pectus, densely sericeous. 



2. E. niger. Black above ; beneath reddish brown ; elytra punctate-striate. 

 2\ 1. long ; 1 \ 1. wide. Pennsylvania. 



Mycetophagiis niger, Melsh. Catal. 



Black, very minutely and densely punctured, ashy-pubescent ; mouth piceous ; 

 antennae, palpi and feet rufous ; thorax each side of the middle at base with an 

 obsolete obtuse impression: scutellum as in the preceding: elytra punctate- 

 striate, striae very fine, punctures approximate: beneath' dusky reddish-brown. 



This species differs from bicolor, Fabr., which it resembles by its striate elytra, 

 in the outline of the body ; that of bicolor is like quadrimaculatus, nob., obovate, 

 and that of niger is rather elliptic. 



Cistelidce, Leach. 

 Eryx, Steph. 



"Sanguineous; head, elytra and feet black." Cistela amcena. Say, Journ. 

 Acad. Nat. Sci. iii. 268. 



Var. a. As the preceding, with the suture and lateral edges of the elytra 

 rufous. 



Allkcula, Fabr. 



A. pilosa. Fuscous; antennae, palpi and tarsi testaceous. 4 1. long; 1^1. 

 wide. Pennsylvania. 



Cistela pilosa, Melsh. Catal. 



Oblong elliptic, dark brown above, ashy-pubescent ; head stronglj' and densely 

 punctured, with the frontal suture distinct; clypeus obtusely rounded, and 

 piceous at tip ; labrum, antennae and palpi testaceous ; the former rather piceous ; 

 the latter with the last joint of the maxillary distinctly securiform ; thorax 

 transverse, as wide at base as the elytra, where it is wider than at apex, with 

 the sides rounded ; basal edge rather straight ; anterior edge together with the 

 anterior angles obtusely rounded ; regularly and deeply punctuate ; each side 

 of the middle towards the hind angles with an obsolete shallow transverse 

 impression ; medial line fine, impunctured ; a small obtuse triangular impression 

 in front of the scutel, which is transverse, with a few transverse series of 



