304 REPORT OF NEW JERSEY STATE MUSEUM. 
species is responsible for the gradual destruction of the sinuate pear 
borer, which needs two years to attain full growth, and is long in 
the helpless pupal stage. The variety “onusta” Say. is less frequent 
than the type. 
The records of “C. vestita” Spin, and “C. dichroa” Lee. are based on 
erroneous data. >v '-— 
CREGYA Lee. 
C. vetusta Spin. Highlands (Dietz); Westville (Li); g. d. (W); rare. 
C. oculata Say. Throughout the State VI-VIII; locally not rare. 
ORTHOPLEURA Spin. 
O. damicornis Fabr. Hopatcong (Pm); Palisades, Staten Island III, 16 
(Jl); Boonton VII, 17, Malaga VII, 20 (GG); Orange Mts., Newark 
(Bf); Woodbury VII, 30, Collingswood VIII, 2 (Brn); not common. 
LARICOBIUS Rosen. 
L. erichsoni Rosen. Orange Mts., rare (Bf ); Staten Island (Lg). 
NECROBIA Latr. 
N. rufipes Fabr. The “red- 
legged ham beetle”; occurs 
throughout the State, is cos¬ 
mopolitan and found on dry¬ 
ing meats, carrion, bones, 
fish, cheese, etc. (Ch). 
N. ruficollis Fabr. With the 
preceding, and much more 
common. 
N. violacea Linn. Same habits 
and distribution as before 
Fig. n8.—Red-legged liam beetle, Necrobia 
rufipes: a, larva; b, pupa; c, cocoon; d, e , 
beetle; natural size and enlarged; 
f to j, structural details. 
and easily recognized by the uniform blue coloration. 
Family PTINID^. 
A very interesting group of beetles, varying so greatly in form that no 
superficial description is sufficiently comprehensive to include all. They 
are hard in texture, and the elytra, which may be smooth, striate, shining, 
pairy or scaly, are not abbreviated, but cover the abdomen: The head 
is usually bent under, the antennae are slender, sometimes evenly serrate, 
but more usually with a prominent serrate, lamellate or pectinated club. 
They live on dry animal and vegetable products, and some of them bore 
into the furniture and woodwork of houses, to their material injury. All 
sorts of things from Belladonna roots to cigars and gunwads are attacked 
and serve as food. 
The larvae occur with the adults, and are soft, white, grub-like creatures 
resembling miniature white-grubs, but covered with short stiff hair or 
bristles. 
