-176- 



Tymnes tricolor may be found on blackberry, hornbeam and 

 various other plants. 



Adoxiis vitis feeds upon Virginian creeper {Ampelopsis) and 

 grape. 



Metachroma pallida has been bred from the leaves of poplar by 

 Coquillett (Can. Ent. xv, p. 21). 



Paria aterriiiia, Graphops piibescois and Colaspis bninnea. — 

 These three species infest the roots of the strawberry. 



Doryphora divicollis feeds upon the underside of the leaves of 

 various species of milkweed {Asclepias). 



Doryphora ii-lijieata. — The early stages of this species have 

 been described and figured by Duges (Ann. Ent. Soc. Belg. xxviii, 

 p. I, pi. I). It feeds on Solanuni tardum in Mexico. 



Doryplwra lo-lineata. — Besides the well known food-plant (the 

 potato) of this species it has also been found living upon the follow- 

 ing plants: egg-plant, Datura straiiwniuin, henbane (^Hyoscyamiis), 

 ground-cherry {Physalis), apple of Peru {Nicandra), tobacco, bella- 

 donna, petunia and cabbage (Glover and Riley). 



Doryphora jiuicta lives on Solaniuii carolinense. 



Chrysomela inultiguttata feeds on hazel (Coquillett, Can. Ent. 

 xv, 22). C. scalaris lives on willow, linden, elm and basswood. 

 C. philadelphica and C. bigsbyana infest various species of willow. 



Chrysomela similis was bred from ragweed {Ambrosia artemisice- 

 folia) and Bidens frondosa by Coquillett (Can. Ent. xv, 22). 



Chrysomela prcecelsis lives on Ipomea and Calystegia (Hamilton, 

 Can. Ent. xx, p. 66). 



Chryomela lunata I have taken this beetle on the leaves^ of \a- 

 rious species of wild roses, upon which the larva also undoubtedly 

 lives. 



Prasocuris phellandrii. — The food-plant of this beetle has not 

 yet been recorded in this country. In Europe it lives on Ciaita. 

 virosa. 



Prasocuris varipes lives on a species of buttercup {Ranimciiliis) 

 in April. 



Gastroidea polygoni feed upon difterent species of knotweed 

 (^Polygonum). G. cyanca I bred from Riimcx. G. formosa lives 

 on a species of rhubarb in Arizona. 



Lina tremulcs, L. lapponica, L. scripta and Phyllodccta vulga- 

 tissima. — All these species infest various species of willow and 

 poplar. 



Monocesta coryli is injurious to various species of elm (Riley, 

 Rep. U. S. Dept. Agr. p. 246, 1878); also feeds on hazel. 



