460 ON THE USE OF THE MAXILLJE 



FAMILY LAMPYRIDES. 



Genus Chauliognathus. 



Cantharis, Linn. Telephorus, Oliv. Malthinus, Lat. 



Antennae nearly as 1 >ng as the elytra; mandibles arcuated, 

 entire, apex acute ; maxillae with the upper lobe, at least, ex- 

 tensible during life ; palpi with their last joint larger, subsecu- 

 riform ; body soft ; elytra shorter than the abdomen ; head ge- 

 nerally attenuated behind. 



I. Chauliognathus marginatus. 



Testaceous ; antennae and a bifurcated band on the vertex 

 black ; a longitudinal band on the thorax, and an abbreviated 

 one near the apex of the elytra black . 



Length (in a dried state) from 2-5ths to nearly half an inch. 



Inhabits North Carolina from May till the end of July. 



Description. — Head testaceous ; a line on the vertex which 

 bifurcates towards the eyes black ; mandibles piceous at tip ; 

 palpi piceous ; antennae black, first three joints rufous under- 

 neath ; thorax testaceous, sub quadrate, not transverse, mar- 

 gined with a longitudinal band black ; elytra testaceous, nar- 

 rowed at tip, with an abbreviated band near the apex black; 

 a slightly elevated line near the suture diverging beyond the 

 middle towards the humerus, where it is obsolete ; beneath 

 testaceous; postpectus darker; venter testaceous, segments 

 black at base ; thighs pale ferruginous, black at tip ; tibiae 

 piceous, slightly ferruginous at base ; tarsi piceous. 



Var. a. Elytral band nearly reaching the base, where it 

 bifurcates, inner bifurcation longest; band of the thorax in- 

 terrupted in two places. 



Var./?. Elytra black; suture, margin and humerus tes- 

 taceous. This is possibly the Cantharis marginal a. Fab. 

 Eleut. I. p. 298. 



Var. y. Elytra testaceous, immaculate. 



