510 COLEOPTERA. 



metallic greenish beetle, foinid in abunflance on leaves south- 

 ward. The larva of Chlumys pUcata Olivier, according to 

 Mr. S. H. Scudder, who has reared it from the sweet-fern, is a 

 sac bearer, drawing after it a rounded, flask-shaped, blackish 

 sac, within which it withdraws when disturbed. Lar^-te appar- 

 ently belonging to this species were found by Mr. Enierton on 

 grass in pastures in July. They are interesting as Ijeing true 

 sac-bearers, recalling Psyche helix and other sac-bearing moths, 

 and the Phryganeids. Fig. 507 represents the larva in the act 

 of walking, the head and thoracic segments protruding from 

 the case. The case is a quarter of an inch long and one-half 

 as thick, being oval cylindrical. It is 

 black and appears to be formed of 

 little pellets of vegetable matter 

 chewed by the larva and applied to the 

 edge, with a seam along the middle of 

 the under side, which readily spreads open when the sac is 

 pressed. ' The case is a little contracted before the mouth, 

 where the pellsts are a little larger than elsewhere. The larva 

 is of the form of those of others of the family, but the body is 

 slenderer in front of the abdomen, and the legs are longer 

 than usual. The abdomen is suddenly thickened and curved 

 at right angles, the tip being rather pointed. The bod}' is 

 white, with a brown-black head and dark brown legs, and a 

 prothoracic corneous piece, with a corneous piece at the inser- 

 tion of each leg. It is, in its natural carved posture, .25 of 

 an inch long. In the Museum of the Peabody Academy are 

 several minute chalcid parasites reared from C j^/fcoto. 



Oryptoceplialus is a short, cyliudiical genus, numbering nearly 

 800 species. 



Erotylid^ Westwood. This famity is very largeh^ devel- 

 oped in tropical America, and is known by the large, flattened 

 anteunal club, which consists of three joints. Most of them 

 are supposed to be leaf insects, while the more northern spe- 

 cies live in fungi. 



Endomychid.e Leach. In this small group ai'e genera whose 

 bodies are oval, with antennie longer than the head, which with 



