VITTATE CHRYSOMELID BEETLES DISONYCHA — BLAKE 43 



the markings are different. One of these bears a type label and the 

 name Nephrica terminata Jacoby, from the upper Amazon. The eyes 

 of this species are not at all reniform, 



Disonycha glabrata (Fabricius) 



Figures 58, 59 



Crioceris tomeniosa Fabricius, Systema entomologiae, p. 122, 1775 (not Chrysomela 



tomentosa Linnaeus, 1758). 

 Crioceris glabrata Fabricius, Species insectorum, vol. 1, p. 156, 1781 (in Africa 



aequinoctiali). 

 Chrysomela glabrata Fabricius, Mantissa insectorum, vol. 1, p. 76, 1787. 

 Altica vittata Olivier, in Encyclopedic m^thodique, vol. 4 (vol. 1, Insects), p. 105, 



1789. 

 Galleruca glabrata Fabricius, Entomologia systematica, vol. 1, pt. 2, p. 25, 1792; 



Systema Eleutheratorum, vol. 1, p. 494, 1801. 

 Altica glabrata Olivier, Entomologie, vol. 6, p. 685, 1808. 

 Altica alternata Latreille, in Humboldt and Bonpland, Voyage aux regions equin- 



oxiales du nouveau continent, fait en 1799-1804, vol. 2, No. 2, Insectes, 



p. 39, 1833 (not Haltica alternata lUiger). 

 Disonycha glabrata Chevrolat, in Dejean, Catalogue de la collection de Col^op- 



tferes . . ., ed. 3, p. 414, 1837.— Crotch, Proc. Acad. Nat. Sci. Philadelphia, 



vol. 25, p. 64, 1873.— Harold, Coleopterologische Hefte, vol. 15, p. 4, 1876. — 



Jacoby, Biologia Centrali-America, vol. 6, pt. 1, p. 311, 1884. — Horn, Trans. 



Amer. Ent. Soc, vol. 16, p. 207, 1889.— Blake, Proc. U. S. Nat. Mus., vol. 



82, art. 28, pp. 49-51, 1933. 

 Disonycha horticola Chevrolat, in Dejean, Catalogue de la collection de Col^op- 



tferes . . ., ed. 3, p. 414, 1837 (Mexico). 

 Disonycha albicollis Sturm, Catalogue . . . , p. 283, 1843 ("Amer. bor."). 



Between 5 and 6.5 mm. in length, elongate oblong oval, polished; 

 pale yellow; darkened occiput; dark median pronotal spot, this some- 

 times lacking, or occasionally three pronotal spots ; broad black sutiu-al, 

 median, and marginal or submarginal elytral vittae; undersurface pale, 

 sometimes darkened in middle of metasternum and abdomen. 



Head with interocular space about half width of head, smooth, with 

 a few punctures about fovea on each side near eye, frontal tubercles 

 well marked, carina narrowly produced, pale, with occiput and some- 

 times tubercles and labrum dark. Antennae dark, with pale basal 

 joints, third joint much shorter than fourth and fifth. Prothorax 

 approximately twice as broad as long, convex, somewhat narrowed 

 anteriorly, with arcuate sides, shining, very faintly punctate, pale, 

 with a median dark diamond-shaped spot, sometimes two smaller 

 lateral spots, or occasionally immaculate. Scutellum black. Elytra 

 convex, with the humeri marked by a short intrahumeral sulcus, sides 

 parallel, surface shinmg, shallowly punctate, in some specimens (from 

 Arizona and Texas) punctation very indistinct, pale, with broad sut- 

 ural, median, and usually marginal vittae, in some specimens from 



