48 [April, 1844, 



Descriptions of New Species of North American Coleoptera. 

 By John L. Le Conte.* 



1. Galeiiita dubia. Nob. Length 9 lines, breadth 3y lines. 



Head black, frontal impressions oblong, shallow ; palpi and first joint of the 

 antenna; ferruginous ; remainder of the latter brown. 



Thorax ferruginous; posterior transverse impression tolerably marked, straight; 

 longitudinal line very slight : basal impressions shallow. Elytra black, striae 

 impunctate, beneath dark brown ; legs and under part of the thorax ferruginous. 

 Inhabits Georgia. 



Differs from G. Le Contei, Dej., in not having a red spot on the head, and in 

 the basal impressions of the thorax, which are shallower ; from G. bicolor, Drury, 

 (G. Americana, Dej.,) in having the longitudinal line of the thorax less im- 

 pressed, and the posterior transverse impression more distinct. The thorax is 

 also less retracted posteriorly : it differs from all the other species in having the 

 stria? of the elytra impunctate. 



2. Plochionus vittatus. Nob. Length 4 lines, breadth If lines. Ferrugi- 

 nous ; tips of mandibles and eyes black ; frontal impressions oval, very deep : 

 thorax covered with transverse wrinkles ; transverse impressions scarcely visible; 

 longitudinal line entire, deeply marked ; basilar impressions deep, oblong, and 

 transverse : a wide and deep fovea impressed on each side near the middle of the 

 thorax ; lateral margin widely depressed towards the posterior angles. 



Elytra, with a broad black sutural vitta, and a lateral spot of the same colour 

 behind the middle : stria? deep, impunctured. Body and legs dark ferruginous. 

 Inhabits Florida. 



3. Aptinus americanus. Dej. Cat. Length 5f lines ; breadth 2^ lines. 

 Head, thorax, and legs ferruginous. Antenna; ferruginous, growing dusky 



towards the extremity. Head smooth, with a deep and long longitudinal impres- 

 sion between the eyes ; eyes black. Thorax sparsely punctured ; transverse im- 

 pressions none : longitudinal line well marked ; with a few transverse wrinkles 

 on each side. 



Elytra bluish-black, costse smooth ; intervals deep, wide, and punctured. 

 Sternum ferruginous ; abdomen very dark brown, almost black. Inhabits" 

 Georgia. 



Resembles much in form and size Brachijtus quadripennis, but it is narrower, 

 and the elytra are less parallel. 



4. Biiachinus strenuus. Nob. Length 7$ lines ; breadth 3| lines. 

 Head, antenna;, palpi, thorax, sternum, and legs ferruginous; abdomen dark 



brown, with a reddish spot in the middle of the upper part : head sparsely punctate, 

 particularly at the posterior part. Thorax scarcely wider than the head, thickly 

 punctured. 



* Communicated by the Entomological Society of Pennsylvania. 



