308 ACADEMY OF NATURAL SCIENCES 



The male in luy specimens is of a paler color than the female. 

 It differs from the atra nob., by having the strioe of the elytra 

 much less deeply impressed. 



The palpi are all terminated by a joint formed like a reversed 

 triangle ; it therefore belongs more properly to the genus AUe- 

 rula of authors. 



2. C. ATRA; — Blackish-brown, with short hairs ; striae of the 

 ?.lyri"a deeply impressed. 



Cistela atra Melsh. Catal. [243] 



Body nearly black, with a tinge of brown, with numerous short 

 blackish hairs, arising from punctures : head transversely indented 

 between the eyes; antenna) dark fuscous, nearly half as long as 

 the body, terminal joints somewhat ovate, and slightly petiolated : 

 thorax with the posterior angles subacutely rounded : elytra 

 with rather deeply impressed, punctured striae : beneath dark 

 rufo-piceous. 



Length three-tenths of an inch. 



It may be distinguished from the preceding, by the form of 

 the terminal joints of the antennae, as well as by the more deeply 

 impressed striae. 



[The name having been previously employed, this species has 

 been described by ])r. Melsheimer as Allecula mijrans. — Lec] 



MORDELLA L. Fabr. 



1. M. TRIFASCIATA. — Testaceous, disk of the thorax and three 

 bands of the elytra black. 



MordeUa trifusciata Melsh. Catal. 



Body pale testaceous : head immaculate : thorax with the disk 

 and anterior margin black : elytra with a black band at base, 

 iirregular on its posterior edge, and extending a short distance 

 .down the suture; ajiother on the middle, rather narrower at the 

 suture, and ,a third at tip : beneath, excepting the pectus, dull 

 •piceoixs, slightly yellowish sericeous : feet pale. 



Length one-tenth of an inch. 



2. M. ATTENUATA. — Pale rufous ; thorax with a black spot ; 

 elytra black, with an abbreviated rufous vitta. 



Desc. Body rufo-testaceous : antennae black, four basal joints 

 pale rufous : thorax with a large black spot on the anterior disk : 



[Vol. V. 



