ON THE STUDY OF ENTOMOLOGY. 
745 
family XXXV.—Cyphonidae.—2 Genera. 
1 Scirtes 2 Cyphon 
J amily XXX VI.—Lampyridae.—2 Genera. 
1 Lampyris 2 Lyeus 
The common glow-worm, (Lampyris noctiluca) is the most con¬ 
spicuous and best known ol this family. The female in her perfect 
state, is destitute of the least vestige of wings, (Fig. 121,) whilst the 
the male (b) is a perfect beetle, the light proceeds from a pale 
coloured patch, that teaminates the 
under side of the abodomen. The 
general opinion was that the males 
emitted no light, but this has been 
found inaccurate, although it is very 
faint compared with that of the female. 
If have read that the males of the L. 
splendidula, shew their light very con¬ 
spicuous, but have never yet seen 
them, or met with any person, who has captured a specimen in this 
country. Both male and female of our common glow-worm appear 
capable of concealing and extinguishing their light at pleasure. I 
met with a female specimen a few evenings ago, which I brought 
home with me, and it showed no disposition to hide its light at that 
time, but although it lay amongst plenty of grass, I could not observe 
it shine again for several days afterwards, when it appeared as bril¬ 
liant as ever. 
Family XXXVII.—Telephoridae; Soft-wings, Soldiers, Sailors— 
2 Genera. 
1 Telephorus 2 Malthinus 
Family XXXVIII.—Melyridee.—4 Genera. 
1 Malachius 2 Elicopis 3 Dasytes 
4 Drilus 
Family XXXIX.—Tillidae.—6 Genera. 
1 Tillus 3 Clerus 5 Opilus 
2 Thanasimus 4 Necrobia 6 Corynetes 
122 The Thanasimus formicarius (fig 122) 
( a ) is said to destroy the Anobium 
pertinax (fig. 59, page 375.) which is 
very destructive to furniture, &c. It 
may be found in Scotch and Spruce 
Firs that have been recently felled, it 
runs very nimbly, and has been named 
formicarius from its resemblance in 
