144 Psijche [August 



TWO NEW SPECIES OF HISTER. ' 

 By F. G. Carxochan 



Hister Solaris sp. nov. 



Oval, shining, about the size of Hister fiirtirus. Head punctate with frontal 

 stria semicircular, deeply impressed, not reentrant. Pronotum punctate, external 

 and internal striae entire, gradually approaching at base, and between them con- 

 fused striae usually extending past the middle. Margin of thorax ciliate. Three 

 entire dorsal striae, the fourth basal, with a faintly defined apical appendix, the 

 fifth apical, faintly defined; the sutural apical, sometimes. extending as far as the 

 middle; outer subhumeral a short mark in the basal third, faintly impressed or 

 absent, inner subhumeral visible as a short stria apically, or reduced to a few shallow 

 punctures, which are barely discernible. Elytra red with trapezoidal black spot 

 and black posterior margins; inflexed portion of elytra red, shading to brown at 

 extreme edge. Anterior femora brownish, bidentate, middle and hind femora 

 red, tipped with black at each end. Length (from base of thorax to apex of elytral 

 suture) 3.5 mm. 



This species is closely related to arcuaius, differing from it only 

 in color, which in arcuaius is mahogany and black, while in this 

 species in orange-red and black, and in the distribution of the color. 

 Arcuaius has the mahogany spot surrounded with black, the in- 

 flexed flanks being black. This species has the inflexed flanks 

 orange-red. Arcuaius is slightly larger and more robust. 



Described from six specimens; two from Wenatchee, Washing- 

 ton, May 8, 1908 (W. M. Mann); one from Wawawai, Washington, 

 April 24, 1909 (W. M. Mann); one from Corvallis, Oregon, x\pril 

 20, 1910 (sent to me by C. A. Frost); two in the collection of the 

 American Museum of Natural History from Douglas, Wyoming, 

 and Nevada. The type from Wenatchee. is in my collection; the 

 others are in the collections of Mann, Frost and the American 

 Museum. 



Hister ednae sp. nov. 



Oval, black, shining, about the size of Hister sedecimstriatus. Head with a few 

 indistinct punctures, frontal stria semicircular, entire, not reentrant. Prothorax 

 bistriate; the outer stria entire, slightly sinuate; the inner also entire, slightly 

 sinuate, closer to the outer at the base than at the apex, and slightly hooked inward 

 at the base; sparsely punctate laterally inside inner stria for one-half the length of 

 stria from base, also with a finely punctate area in front of the scutelium. Elytra 



1 Contributions from the Entomological Laboratory of the Bussey Institution, Harvard Uni- 

 versity, No. 100. 



