390 ANNALS OP THE LYCEUM. 



has the elytra obviously striated, and the other has those striae 

 so far obsblete, that the elytra appear smooth to the eye. 

 [Belongs to Ludius. — Lec.] 



2. E. hemipodus. — Black; thorax convex, rather gibbous; 

 thighs rufous. 



Elater fuscvpes Melsh. Catal. 



Desc. Body black, with short hairs ; head with an obsolete, 

 impressed, arcuated line on the front ; antennae not serrated, 

 black; basal joints dark pieeous : thorax very convex, rather 

 broadest in the middle, equally narrowed before and behind ; 

 lateral edge regularly arcuated, a little contracted near the pos- 

 terior angles; no appearance of an impressed line; the interval 

 between the thorax and elytra deeply indented ; scutel oval, 

 truncated at base : elytra striated, minutely punctured, slightly 

 tinged with brassy : thighs dark rufous. [255] 



Length eleven-twentieths of an inch. 



This is a very different insect from the fuscipes Fabr. 



[A species of Asaphes Kirby. — Lec] 



3. E. UNICOLOR. — Blackish-brown ; antennae simple ; thorax 

 short, narrowed before, and with an impressed line behind. 



Elater unicolor Melsh. Catal. 



Desc. Body blackish-brown, with short cinereous hair : head 

 a little concave just above the interval between the antennae and 

 a longitudinal slightly impressed line : antennae not serrated, 

 third joint considerably longer than the fourth : palpi pale 

 rufous : thorax somewhat convex, narrowed anteriorly by an 

 arcuated line, at the posterior angles very slightly excurved ; 

 posterior declivity with an abbreviated impressed line, which 

 does not reach the middle : scutel oval orbicular : elytra striate, 

 striae without very distinct punctures, but on each side of them 

 a row of minute punctures may be traced on the interstitial line 

 which are a little rounded : thighs dull rufous. 



Length rather more than half an inch. 



[Belongs to Perothops ; does not differ from E. mucidus below. 

 — Lec] 



4. E. viridis. — Blackish-cupreous ; venter in the middle, and 

 feet rufous. 



Elater viridis Melsh. Catal. 



