434 INSECTA. 



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 *. 



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

 whose compressed antennae, sometimes simple, and at others serrated 

 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 



DiCTYOPTERA, 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. 

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

 sides of the thorax and the eltyra blood-red ; elytra silky and 

 slightly striated. The larva lives under the bark of the Oak. 

 It is linear, flattened, and black, the last ring red, resembling a 

 plate with two kinds of horns, cylindrical, and, as it were, 

 annulated or articulated, and arcuated inwards. It has six small 

 feet. 



Lycus minutus. Fab. ; Panz., Faun. Insect. Germ., XLI, 2. 

 Smaller; all black, the extremity of the elytra excepted, which 

 is red, and the end of the antennae, which is reddish. Also 

 found in France, but in forests of the Mountain Fir f. 



Omalisus, Geoff. Oliv. Fab. 



No apparent snout ; joints of the antennae almost cylindrical, 

 slightly reduced at base, and the second and third much shorter than 

 the following ones ; penultimate joint of the tarsi alone in the form 

 of a reversed heart ; the others elongated and cylindrical ; elytra 

 tolerably solid and firm. 



O. suturalis. Fab. ; Oliv., Col. II, 24, 1, 2. Rather more than 

 two lines in length, black, elytra blood-red, the suture excepted. 

 Found in the woods in the vicinity of Paris, and in the forest of 

 Saint Germain particularly, on the Oaks, in spring %. 



The other Lampyrides of our first division are distinguished from 

 the preceding ones, not only by the want of a snout, by their head, 

 which, in the males almost entirely occupied by the eyes, is entirely 

 or for the greater part concealed under a semicircular or square 

 thorax, but also by a veiy remarkable character, either common to 

 both sexes, or peculiar to the females, that of being phosphorescent, 

 whence the names of glow-worms, fire-flies, &c., given to these 

 Insects. 



Their body is extremely soft, the abdomen particularly, which has 



* The Lye. latissimus, 7-ostraUts, proboscideiis, &c., of Fabiicius. For the other 

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

 and figured. 



t The Lye. retieulatus, bieolor, serratieornis, fasciatus, atirora, &c. 



X See Encyc. Method,, article Omalise, 



