KK\ TO KAMii-iKS oi'' i.amki,i.k;orma. 90:^ 



Soiics IV. LAMEJ.LICORNIA. 



All luruihcfs oi; tilis series have the lai-si 5-.j()iiite(l and the an- 

 tenna^ witli three to seven of tlie tei'iuinal joints l)i"oa(ler on one 

 side, so as to form a peculiar club, the parts ol' which are movable. 

 The front tibiae are dilated and strongly toothed or scalloped on the 

 outer edge. The larvae live on decaying vegetable matter, roots or 

 dung. Two fjiniilit's comprise the scries, both of wliich are repre- 

 sented in the State. 



KEY TO FAMILIES OF LAMELLICORNIA. 



a. Antonnix' usually elbowed, the outer joints or lamelho not flattened, but 

 prolonged on the inner side to form a pectinate club, the joints of 

 which cannot be brought closely together (Fig. 4, No. 13) ; elytra 

 entirely covering the dorsal surface of the abdomen, the latter with 

 five ventral segments visible at the sides. 



Family XLIX. Iacaniu.^*:, p. UU:',. 

 (/(/. AiU«Muia> not elbowed, tlu> liunellie flattened and capable of forming a 

 compact club (Fig. 35!J) ; elytra usually leaving the pygidium un- 

 covered ; six or seven ventral segments visible on the sides. 



Family L. Scakab.eid.e, p. UU'.t. 



Family XLIX. LUCANID^. 



The Stag Beetles. "Pinching Bugs.'' 



A small family of large or medium-sized beetles distinguished 

 by having the outer joints of antenniE leaf -like but not capable of 

 being opposed or folded together into a compact club, as in the 

 next family, the Scarabaeida?, to which they are otherwise closely 

 allied. The clubs of the antennae are therefore pectinate, or comb- 

 toothed, rather than lamellate. In the majority of species the an- 

 tenna are elbowed or crooked, the second and following joints form- 

 ing an angle with the first. The common names, "stag beetles" and 

 "pinching bugs," are given them on account of the great develop- 

 ment of the mandibles, which, in the males of some species, are 

 branched like the antlers of a stag. 



In addition to the characters above mentioned the Lucanidae 

 have the mentum large, horn-like, quadrate (triangular in Nica- 

 qiis) ; maxillae usually covered and with two lobes, one or both of 

 which beai's a fixcvl. horn-like terminal hook; antenna? 10-jointed, 

 inserted undei- the margin of \ho front; elytra i-ounded at tip, 

 covering the abdomen, which has fi\'c free ventral segments; legs 



