DIABROTICA. 331 
Hab. Mexico, Venta de Pelegrino in Guerrero (H. H. Smith). 
A single specimen. Somewhat allied in coloration to D. dohrni and D. subsignata, 
_ but differing in the elytral pattern. 
109 (a). Diabrotica guerreroensis. (Tab. XLIII. fig. 13.) 
Black, the antenne and legs flavous; thorax fulvous, scarcely impressed, impunctate ; elytra finely punctured, 
flavous or fulvous, an elongate humeral spot, the suture at the base, a transverse band below the middle, 
and the extreme apex, black. 
Length 3 lines. 
Of posteriorly widened shape; the head impunctate, black or partly fulvous, the lower portion forming a plane 
surface, without any elevations; antenns extending to about the middle of the elytra, fulvous or flavous, 
the third and fourth joints nearly three times as long as the second; thorax subquadrate, rather convex, 
slightly narrowed in front, the surface obsoletely obliquely impressed at the sides, impunctate; scutellum 
black ; elytra convex, widened posteriorly, finely punctured in semi-regular rows, fulvous, with an elongate 
spot at the shoulder (widened posteriorly, and extending to a third of the length of the elytra), a somewhat 
similar spot surrounding the scutellum, a broad transverse band below the middle (not quite extending to 
either margin), and a transverse spot at the apex, black; underside and pygidium black. 
Hab. Mexico, Xautipa and Soledad, both in Guerrero (H. H. Smith). 
Differing in the elytral pattern from any of its allies in this section. 
111 (a). Diabrotica blattoides. 
Broadly depressed, pale flavous; the antenne, underside, tibie, and tarsi black; thorax bifoveolate, impunctate ; 
elytra closely and rather strongly punctured. 
Length 3 lines. . 
Head broad, foveolate on the vertex; the antenne extending to two-thirds of the length of the elytra, black, 
rather robust, the third joint elongate, slightly shorter than the fourth, the terminal joints gradually 
shorter; thorax one-half broader than long, the sides straight, the surface rather flat, with a small but 
deep fovea on each side and a more shallow depression at the base, the disc impunctate; scutellum very 
broad, concave in the middle; elytra not wider at the base than the thorax, very closely and strongly 
punctured ; legs long and slender, the femora pale flavous, the tibie and tarsi black. 
Hab. Mexico, Omilteme in Guerrero (H. H. Smith). A single specimen. 
Of the same depressed shape as D. sublevicollis, but without any darker markings. 
112. Diabrotica tricincta. | 
Galleruca tricincta, Say, Journ. Acad. Phil. iti. p. 457 (1824)°. 
Diabrotica tricincta, Lec. Proc. Acad. Phil. 1865, p. 212 ?. 
Diabrotica suffriani, huj. op. p. 55, Tab. XXXIT. fig. 3. . 
To the locality given, add :—Nortu America !, Arizona ?. 
V 
Diabrotica sexplagiata (p. 553). 
This species, as noted by Mr. Gahan (Trans. Ent. Soc. Lond. 1891, p. 524), belongs 
to the genus eobrotica. 
Diabrotica hirsuta (p. 552). 
To the Mexican locality given, add :—Teapa in Tabasco (H. H. Smith). 
2u2 
