396 REPORT OF NEW JERSEY STATE MUSEUM. 
BALANINUS Germ. 
Fig. 164.—Chestnut weevil and its work; a, beetle from above; b, 
same in outline from side; larva: all enlarged. 
B. obtusus Blanch. Hopatcong (Pm); Newark Dist. (Bf); New Bruns¬ 
wick. 
B. baculi Chitt. (uniformis Lee.) Throughout the State; larva in 
acorns. 
B. nasicus Say. Throughout the State; larva in acorns. 
B. pa rdalis Chitt. Sandy Hook; larva breeds in acorns (Coll). 
B. cary 33 Horn. Throughout the State VI-VIII, the larva in hickory. 
B. rectu s Sa v. Common everywhere; the larva in chestnut. 
B. quercus Horn. Brigantine IX (Hn); New Jersey (Jiil); larva in 
acorns. 
B. proboscoideus Fab. Woodside, Orange Mts. (Bf); Newark, Lahaway 
IX (Sm); Moorestown (U S Ag); larva in chestnuts and chinquapins. 
Is the same as the “caryatrypes” of the last edition. 
B. confusor Hamilton. Hopatcong (Pm); Anglesea (Sm); larvae on 
acorns. 
The species of this genus are all nut-weevils, and those that feed in 
hickory and chestnut are often seriously injurious. The chestnut weevils 
in New Jersey are especially troublesome where the European and Jap¬ 
anese varieties are grown. There is no insecticide that is available to 
reach the insect in any stage, and the only methods of control are to 
collect the nuts as soon as they fall and market them, or to store them 
in tight barrels, from which the larvas cannot escape when they emerge 
from the nuts. 
Family BRENTHIMJ. 
Contains only a single very curious species, in which the males have 
prominent mandibles at the ends of the short robust snout, and the 
females have long, cylindrical beaks, by means of which they bore into 
the wood to lay their eggs. When these beaks become wedged, as they 
sometimes do, the males use their forceps-like jaws to pull them out. 
EUPSALIS Lee. 
E. minuta Dru. Throughout the State on chestnut, oak and maple; 
hardly common anywhere. 
