LAMPYRIS. 53 



apex of abdomen pale. L. 5 — 6 1. Female brownish ; 

 margins of thorax and abdomen paler, last three segments 

 yellow. L. 6 — 8 1. Common. L. noctiluca, Lin. 



DMILIDAE, 



Mandiljles curved, with sharp apex and a sharp tooth in 

 middle of inner-side ; maxillae with only one, small lobe. 



Drilus, 01. 



Dr litis. 



Male black ; elytra yellow ; pubescence rather coarse, 

 yellow. Antennae comblike. L. 2J — 3 1. Female without 

 elytra or wings, antennae short. L. 6 1. Male moderately 

 common, female rare. D. flavesceiis, 01. 



TELBPHOBIDAE, 



A, Last joint of palpi hatchet-shaped ; elytra not or 

 scarcely abbreviated. 



(I, Mandibles not toothed on inner-side ; sides of thorax 

 not emarginate toward base. 



Antennae thread-like. Telephorus, Schaeff. 



J), Mandibles toothed on inner-side ; sides of thorax 

 emarginate toward base in male and often also in 

 female. 



Antennae often feebly sawlike. Si lis, Latr. 



J5. Last joint of palpi ovate ; elytra abbreviated. 



a. Antennae inserted at some distance from eyes ; man- 

 dibles with a tooth on inner-side. 



Head prominent, only slightly inclined, strongly nar- 

 rowed at base ; elytra longer than in MaWiodes. 



Malthinus, Latr. 



h» Antennae inserted close to eyes ; mandibles not 

 toothed on inner-side. 



Head bent downward, more or less narrowed at base. 



Malthodes, Kies. 



Telejyhorus. 



A. Head strongly narrowed and constricted behind, form- 

 ing a neck. 



