122 MACDOUGALL—ON THE LIFE-HISTORY 
TILLUS ELONGATUS.—Its larva has been taken by Perris in 
the galleries of Prilinus pectinicornis, a beetle destructive to 
furniture and woodwork by its borings. 
TRICHODES APIARIUS.—This handsome red-and-blue beetle 
lays its eggs in hives, and its larva on hatching passes from 
cell to cell of the hive, devouring the bee-grubs. The larva 
of Tyrichodes alvearius has the same habit, but preys on the 
grubs of the mason-bee. 
NECROBIA RUFICOLLIS.—The imago feeds on rotting flesh, 
and the larva preys upon the dipterous maggots and pupe 
likely to be found on such putrefying material. The larve 
of an allied French species, Wecrobia rujicornis, found by Perris, 
were preying on Anobium paniceum. This Anobium is harmful 
in houses to vegetable matter and to books. Perris got the 
various stages in a hornet’s nest that had stood in his room 
for several years, and here the Axodium was being attacked by 
Necrobia ruficornis. 
NECROBIA RUFIPES has been found on carcases and old 
bones. 
CORYNETES CCERULEUS has been recorded by Sharp’ as 
entering houses and performing a useful work in destroying the 
Anobium species that mine into tables and chairs. 
Clerus formicarius. 
IMAGO.—I quote Fowler’s’ description. Elongate, anterior 
parts clothed with long pilose hairs, head large, black, coarsely 
punctured, eyes finely granulate, antennz black, last joint with 
apex ferruginous; thorax about as long as broad, 
red, with anterior portion (which is divided by a 
broad V-shaped furrow from the posterior por- 
tion) black, coarsely punctured, posterior angles 
rounded ; elytra depressed, parallel-sided, black, 
ccc with the base red, strongly punctured in front, 
Imago magnified. finely behind, with two strong bands of thick 
From nature. white pubescence, one before the middle very 
irregular, and the other behind the middle; legs black, with 
tarsi more or less ferruginous. 
Found in England, Seotland. and Ireland. 
