ABT. 28 REVISION OP DISONYCHA NORTH OF MEXICO BLAKE 23 



Two specimens from Dillsboro, N.C., and a female in Mr. Schaef- 

 fer's collection from Fort Benning, Ga., are slightly smaller and 

 paler, with the labrum pale, the pronotal spots not large, and the 

 elytral vittae narrow. Dissection of the male from Dillsboro, N.C., 

 shows that the aedeagus is identical with the larger and darker 

 northern specimens. 



7. DISONYCHA LATIOVITTATA Hatch 



Plate 2, Figxire 6 



Haltica puncticolUs LeConte, Reports of explorations and surveys for a railroad 

 route from the Mississippi River to the Pacific Ocean, vol. 9, no. 1, p. G7, 

 1857; vol. 12, pt. 3, p. 67. 1860 (Oregon and California; type in LeCoute 

 collection, Mus. Conip. Zool.) (Not Haltica puncticolUs Kirby, 1837.) 



Dlsonycha puncticolUs Gemmingeb and Harold, Catalogus coleopterorum, p. 

 3497, 1876.— Centner, Can. Ent., vol. 58, p. 149, 1926. 



Disom/cha giiinquevittata Horn, Trans. Amer. Ent. Soc, vol. 16, p. 203, 1889 

 (in part). 



Disonycha quinquevittata var. puncticolUs Schaeffeb, Journ. New York Ent. 

 Soc, vol. 39, p. 280. 1931. 



Disoujicha latiovittata Hatch, Pan-Pacific Ent., vol. 8, no. 3, p. 108, 1932 

 (Nisqually, Washington; type in collection M. H. Hatch), 



Description. — Broadly oblong oval, feebly shining, prothorax 

 densely punctate; pale, head with labrum and often occiput dark, 

 pronotum with 4 or 5 spots, elytra with sutural, median, and sub- 

 marginal vittae, usually metasternum in middle, apex of tibiae, and 

 tarsi dark. Head with interocular space slightly more than half 

 width of head ; carina not acute, broad and produced, frontal tuber- 

 cles somewhat swollen, well marked ; coarsely and rugosely punctate ; 

 pale, with labrum, sometimes also tubercles and occiput, dark, 

 Antennae stout, dark with paler basal joints; third joint shorter than 

 fourth or fifth, which are subequal, the fourth slightly longer, 

 Prothorax twice as broad as long, not very convex, with callosity 

 on each side on basal half and slight median depression near base; 

 somewhat narrowed anteriorly with arcuate sides; surface alutaceous 

 and densely punctate, not shiny; pale, generally with four spots, 

 the median stripe usually either obsolete or reduced to a dot. Scutel- 

 lum dark. Elytra broadly oblong, sides parallel somewhat convex, 

 humeri well marked, with a distinct intrahumeral sulcus; surface 

 alutaceous, somewhat shining, moderately coarsely and densely punc- 

 tate; sutural and submarginal vittae usually joined at apex, vittae 

 broad in Washington and Oregon specimens, but often rather narrow 

 in California specimens, and in these the median vitta sometimes 

 interrupted. Body beneath densely pubescent, pale, usually with 

 the middle of metasternum, apex of tibiae, and tarsi dark. Length, 

 6 to 7.2 mm ; width, 3.2 to 3,8 mm. 



Type locality. — Nisqually, Wash., collected by Trevor Kincaid, 

 August 23, 1931. 



