ENTOMOLOGICAL NEWS [Jan., ’20 
ie) 
in May and June, being usually found on a white birch fungus 
and that Mr. Daecke bred it from such a fungus. 
During the winter of 1918-19, the larvae of this beetle 
were very abundant in Polyporus betulinus at Morristown, 
Oradell and Monmouth Junction and in Daedalea confragosa 
(Bol.) Fr., at Monmouth Junction and High Bridge, all 
localities in New Jersey. Both of these fungi are members 
of the family Polyporaceae and are common in New Jersey, 
the former occurring on birch and the latter on dead wood 
or on living trees, especially of willow. Polyporus betulinus 
on account of its white color is more conspicuous and not as 
likely to be overlooked as D. confragosa. 
Both the larvae and adults feed on the context and tubes 
and when numerous the fungus is completely riddled. Pupa- 
tion takes place in the context in a little chamber excavated 
by the larva and requires about ten days, usually occurring 
during the last of April or in May. On account of its hairi- 
ness, the larva is usually covered with particles of fungus as 
is also the beetle as it works in the context. Beutenmueller 
(Entomologica Americana VI, 1890, p. 57) states that eggs 
are deposited during the fall and that adults emerge the 
following spring, the larvae becoming full grown in May. 
Beutenmueller also describes the larva and pupa and his 
descriptions may be supplemented by the following addi- 
tions: 
Larva. Cervical shield and anal process sometimes brownish. Head 
sparsely hairy. The fork-like process on the posterior extremity consists 
of a pair of prominent tubercles borne on a suboval, dorsal, chitinous 
plate on the ninth abdominal segment; each tubercle consists of a thick, 
central spine bearing five smaller ones; a long hair arises from the bases 
of the smaller ones. The chitinous plate is edged with minute tubercles 
each bearing a long hair and minute, similar tubercles occur on its sur- 
face. 
Thoracic legs sparsely hairy and armed with a sharp claw at tip. Ab- 
dominal segments somewhat produced laterally into tubercles. Each 
thoracic and abdominal segment bears a thin, transverse, dorsal row of 
comparatively long hairs, with the lateral hairs longest; these rows of 
hairs are continued on the ventral abdominal surface. All hairs arise 
from somewhat tuberculate bases. Abdominal stigmata are located just 
above lateral tubercles. Length 6 tog mm. Width 2 to about 3 mm, 
