86 

 Odontota californioa Horn. 



The larval food plant of this species, Cemiothus integeii^imfm., has 

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

 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. 



Odontota scapularis 01. 



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

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

 Kansas (E. A. Popenoe, Trans. Kan. Acad. Science, Vol. V, 18Y7, p. 36). 

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

 of Columbia, but the larvae have apparently not yet been identified. 



MiCRORHOrALA VITTATA Fuh. 



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

 and was observed by Harris in 1833 on the leaves of Solidago ''^Ixvi 

 gata^^—semjMrvirens., or seaside golden-rod. The account in question 

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

 beetle. What were presumed to be the eggs were also described. 



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

 including lanceolatu and canadensis, forms l)lister-like mines in the 

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

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

 shore and along the river banks, 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 Kiver and its branches in 

 and near the city of Washington. 



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

 surface. They were covered with a brown substance evidently excre- 

 mental, and mixed with the hairs of the leaf. 



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

 at Rosslyn, Va. She was at this time quietly resting, head dow^nward 

 with the tip of her abdomen just touching the eggs. 



This species has also been found parasitized by a Chalcidid. 



MiCRORHOPALA XERENK jVe'W/n. 



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- 



