352 INSECTA. 



dead. Several, thus situated, curve their abdomen under- 

 neath. They comprise the genus 



Lampyris, Lin. 



Antennae closely approximated at base, the head either exposed and 

 prolonged anteriorly in the manner of a snout, or for the greater 

 part, or entirely, concealed under the thorax; eyes of the males large 

 and globular; mouth small. Such are the characters of a first divi- 

 sion of this tribe, which we will subdivide into those in which nei- 

 ther sex is phosphorescent, and those in which the females at least 

 are possessed of that faculty. Both sexes of the former are provided 

 with wings, have their head exposed, and frequently narrower and 

 extended anteriorly, or in the form of a snout, and the thorax widen- 

 ed posteriorly with pointed lateral angles. The two or three ulti- 

 mate annuli of their abdomen are destitute of that pale yellowish or 

 whitish tint, that is always found on this part of the body in the true 

 Lampyrides, and which announces their phosphorescence. The ely- 

 tra, in several, widen behind, and are sometimes strongly dilated and 

 rounded posteriorly, in the females particularly. They are densely 

 punctured, and frequently reticulated. 



Lycus, Fab. Oliv. Cantharis, Lin. 



We restrict this subgenus to those species of Fabricius,in which 

 the snout is as long as the portion of the head that precedes it, or 

 longer, and the antennae are serrated. The elytra are most commonly 

 dilated, either laterally, or at their posterior extremity, the two 

 sexes differing greatly in this respect, particularly of certain species 

 peculiar to Africa(l). 



Other species of the same author, but with very short snouts, and 

 whose compressed antennae, sometimes simple, and at others ser- 

 rated or pectinated, have their third joint longer than the preceding 

 one, and in which the intermediate joints of the tarsi have the form 

 of a reversed heart, compose a second subgenus, the 



DlCTYOPTERA, Lat. 



In some of the woods in the vicinity of Paris, on the flowers of 

 the Yarrow, and of other plants, we frequently observe the 



Lycus sanguineus; Lampyris sanguinea, L.; Panz., Faun. In- 

 sect. Germ. XLI, 9. About three lines in length; black; sides 



(1) The Lye- latissimus, roslratus, proboscideus, &c, of Fabricius. For the other 

 species, see Schoenherr, Synon. Ins., I, pars III, App., where several are described 

 and figured. 



