86 



Odonto ta cal ][fobjsllca Horn. 



^ The lai'\'al food plant of this species, OtanotJius Integerrimus^ has 

 been placed on record in Volume V of Insect Life (p. 269) from rear- 

 ings made by Mr. Coquillett while agent for this office in California. 

 He found it mining the leaves of this plant, and reared the adult in 

 September. 



A Chalcidid was also reared from the larva^ of this species. 



Odonto ta scAPUL ARig 01. 



Nothing appears to be recorded of the food habits of this species 

 further than it was captured on a species of hazel (Corylus) in Kansas 

 (E. A. Popenoe, Trans. Kan. Acad. Science, Vol. V, 1877, p. 36), 

 The beetle has also been taken on Solidago in and about the District 

 of Columbia, but the larvae have apparently not yet ])een identified. 



-^ MiORORHOPALA VITTATA Fdl). 



This is one of the conmion species which are to be found northward, 

 and Avas observed by Harris in ]S33 on the leaves of Solidago ^''livvl- 

 gutci;^ = sem])ervirenn ov seaside golden-rod. The account in question 

 includes a description and figure of the larva, as also the mature 

 beetle. What were presumed to l)e the '^gg^^ were also described. 



The larva, which has been observed on other species of Solidago, 

 including Janceolatd and cdnadenKis, forms )>lister-like mines in the 

 leaves much like those of other species of the same group. This 

 insect appears to be most abundant upon plants growing near the sea- 

 shore and along the river })anks, and is quite abundant along the coast 

 of Massachusetts, Long Island, and New Jersey. It is common, l)ut 

 not nearly so abundant along the Potomac River and its T)ranches in 

 and near the city of Washington. 



The eggs have been found near the tips of the leaves on the loAver 

 surface. Th(\v were covered with a brown substance evidentl}- excre- 

 mental, and mixed with the hairs of the leaf. 



A female was noticed which had just deposited two eggs. May 13, 

 at Rossi}' n, Va. She was at this time quietly resting, head downward 

 with the tip of her abdomen just touching the eggs. 



This species has also been fdund parasitized by a Chalcidid. 



MiCRORHOPALA XERENE Newm. 



This attractive little species occurs in considerable abundance in the 

 vicinity of the District of Columbia and has been given some study by 

 the author. It appears to have a somewhat greater diversity of food 

 habits than the innoxious species which have been previously con- 



