﻿FOOD HABITS OF SOME CHRYSOMELIDiE. 



BY WM. BEUTENMULLER. 



Donacia. — The various species of this genus occur upon the 

 leaves of aquatic plants, especially water-lilies {Nymphcea and Nii- 

 phar). I ha\'e taken D. pahnata, D. piscatrix, D. subtilis, D. 

 femorata, D. ccqualis and D. flavipes upon these plants. No larva 

 of any American species has yet been described; they undoubtedly 

 have the same habits as the European species which bore in the 

 stems of water-lilies. 



Lenia brunnicoUis and L. collaris. — Both these species live on 

 the thistle; the former I have taken at Enterprise, Fla., and the 

 latter species was bred by Coquillett (Can. Ent. xv, p. 22). 



Lema solani and L. conjuncta I have found upon the lea\'es of 

 Solanuvi carolinense at Enterprise, Fla. , in May. 



Lema trilincata li\'es upon Datura sti-amoniiim , potato and 

 Physalis. 



Crioceris asparagi and C. ij-punctata both feed upon the lea\'es 

 of asparagus. 



Coscinoptera dominicana li\'es in a case on sumac (Harris' Corr. 

 p. 76). The insect has also been beaten from oak, apple, plum 

 and sassafras (Riley, 6fh Mo. Rep. p. 127). 



Chlamys plicata.- — I ha\e bred this case bearer from the leaves 

 of blackberry and hazel; also found on sycamore and oak. 



Exema gibber and E. conspersa. — I raised these t\AO species 

 from a narrow leaved species 'of aster. 



Cryptocephalus ^-77iacH/atus is found on oak. C. binomis I have 

 taken on blackberry in Florida. C. vcniistus also inhabits the 

 blackberry. C. aiiHcus occurs upon a small lea\-ed huckleberry in 

 Florida, as also does Gnburius /ar.vaiiis. 



Pachybrachys tridois feeds on poison ivy {Rhus toxicodendr 011). 

 P. hiridiis ma)' be found on wild indigo {Baptisia tindoria). P. 

 livens inhabits the willow. P. femoratus has been taken on pine 

 by Mr. Harrington (Can. Ent. xvi, p. 97). 



Bassareus formosus li\'es on \arious species of alder. B. 

 mammifer may be found on blackberr\-. 



Glyptocelis piibescens. — I have taken this species at Fordham, 

 N. Y., on hemlock; also found on pine (Fitch). 



ChrysocJms aiirahis occurs in considerable numbers upon the 

 leaves of dog-bane {Apocynuni). The larva of this common species 

 has not yet been recorded. I have searched for it in \'ain upon the 

 leaves of the plant the imago infests. Can the larva, perhaps, in 

 some way live upon the roots ? 



