1920] Fall— On Certain Species of Haliica, Old and New 107 



the type of Illiger's description. It will be of interest to note that 

 laurel was not among the food plants offered the rosop larvse in 

 Woods' experiments, but that wild plum was offered and refused. 



The following additional biologic notes gleaned from the material 

 sent me by Chittenden may well be put on record at this time, but 

 it should be borne in mind that unless otherwise stated it is only 

 the beetles that were found upon the plants, and that in some in- 

 stances, at least, the visitation probably has no economic signifi- 

 cance whatever. 



H. bimarginata Say. Intervale, N. H., bred from alder; Gardiner, 

 Me., collected on alder; Brownsville, Tex., feeding on willow; 

 Guadalupe, Cal., on willow. This is the well-known alder flea- 

 beetle; its occurrence on willow is more exceptional. 

 H. carinata Germ. Mont Alto, Pa., on elm. 

 H. chalybea 111. Orlando, Fla., and Warrenton, Va., on grape. 

 H. evicta Lee. Moscow, Idaho, on strawberry. 

 H . foliacea Lee. Tecumseh, Okla., "Coll on apple"; Garden city, 

 Kans., "feeding on weeds"; Childress, Tex., "on sugar beets." 

 H. knabii Blatch. Marshall Hall, Md., reared from larvae taken 

 in field on (Enothera biennis. The specimens bear the label H. 

 fuscocenea Melsh, as they probably do in other collections. 

 H. probata Fall. San Luis Obispo, Calif., "on wild rose." 

 H. suspecta Fall. Corcoran, Calif., "on sugar beets." 

 H. vicaria Horn. Fort Collins, Colo., "Sugar beets." I do not 

 think it likely that either of the last two species attack beets in 

 the larval stage or that the beetles will prove a menace to crops. 

 To the systematist the genus Haltica offers very great difficul- 

 ties; hence the especial need for the illumination which the com- 

 plementary work of the biologist may shed upon the obscure rela- 

 tionships of the ignita group. While we have as yet no record of 

 the food plant or habits of H. incprata Lee. of the Manitoba region, 

 an examination of the type convinces me that it should be restored 

 to specific standing. It should probably be associated with ignita 

 and allies, but it differs more from either ignita, rosw or corni than 

 they do from each other. The ante-basal groove of the thorax, 

 though entire, is less deep than in either of these, the form rather 

 narrower and less broadly shouldered, the color brown bronzed, the 

 elytra typically with a faint greenish reflection which is often 

 lacking. The resemblance of ina'rata to obolina of the Pacific 



