16 PROCEEDINGS OF THE NATIONAL MUSEUM vol. i04 



Boheman. Only males have been examined but there is a slight 

 trace of costa in some of these. The coloring seems a little darker 

 than in the Central American species D. recticollis Jacoby, and the 

 aedeagus differs only slightly from the other South and Central 

 American species of the group. 



Disonycha pluriligata (LeConte) 



Figure 15 



lAltica quinquevittata Say, Journ. Acad. Nat. Sci. Philadelphia, vol. 4, p. 88, 1824 



("Missouri"; type lost). 

 Haltica pluriligata LeConte, Proc. Acad. Nat. Sci. Philadelphia, vol. 4, p. 27, 1858 



(Kansas and Texas; type in LeConte collection, MCZ). 

 Disonycha pluriligata LeConte, Smithsonian Contr. Knowl., vol. 11, p. 25, 1859. — 



Blake, Proc. U. S. Nat. Mus., vol. 82, art. 28, pp. 25-28, 1933. 

 Disonycha capitata Jacohy, Biologia Centrali-Americana, Coleoptera, vol. 6, pt. 1, 



p. 316, 1884 (no type designated). 

 Disonycha qtiinquevittata Horn, Trans. Amer. Ent. Soc, vol. 16, p. 203, 1889 (in 



part). — Jacoby, Biologia Centrali-Americana, Coleoptera, vol. 6, suppl., p. 



276, 1891.— SchaefTer, Journ. New York Ent. Soc, vol. 39, p. 279, 1931. 



Between 6.5 and 7.5 mm. in length, elongate oblong oval, somewhat 

 shining; pale; head with occiput, labrum, and often tubercles darker; 

 pronotum usually 5-spotted, lateral spots sometimes evanescent; 

 elytra with sutural, median, and submarginal vittae; metasternum, 

 in part, and apex of tibiae and tarsi dark. 



Head with interocular space slightly more than half its width; 

 tubercles distinctly marked, carina not acute, broad and slightly 

 produced; coarse punctures about fovea on each side of head near eye, 

 but median space usually smooth; pale, with labrum, usually tubercles, 

 and occiput darker. Antennae robust, dark, with paler basal joints, 

 third joint shorter than fourth or fifth, which are subequal with the 

 fourth longer. Prothorax not twice as wide as long, narrowed a little 

 anteriorly, with only slightly arcuate sides, not very convex, a slight 

 callosit}^ on either side in basal half and a median basal depression; 

 surface alutaceous and finely punctate; pale with five spots, some- 

 times lateral spots and median stripe evanescent. Scutellum dark. 

 Elytra with parallel sides, somewhat convex, humeri well developed 

 and an intrahumeral sulcus ; on lateral apical half a trace of the ridges 

 characteristic of the pensylvanica group, and slightly more developed 

 than in alternate: surface alutaceous and finely punctate; vittae 

 usually wider than in alternata except in the southwestern specimens, 

 and the sutural and submarginal often rather feebly joined at apex. 

 Body beneath densely and somewhat coarsely pubescent, pale, with 

 metasternum in part, usually the middle, dark; apex of tibiae and 

 tarsi dark. Length 6.8 to 7.8 mm., width 3.5 to 4.4 mm. 



Type: In MCZ (LeConte collection), from Kansas. 



