124 MARTIN JACOBY 
to the genus; the finely rugose elytral interstices at the sides 
will further help in the recognition of this species. 
3. Lactica unicolor, n. sp. 
Pale fulvous; head and thorax impunctate; elytra scarcely 
visibly punctured. 
Length 1}/, line. 
Head of slightly darker colour than the rest of the body, 
impunctate; the frontal tubercles entirely obsolete, the carina 
short and broad, but slightly raised and joined to the clypeus; 
the eyes rather prominent; antennae moderately long, rather 
stout, the second and third joints short, of equal length, the 
following gradually thickened, the terminal joints sometimes 
obscure fuscous; thorax twice as broad as long, the sides di- 
stinctly rounded at the middle, the angles obsolete, the surface 
entirely impunctate with a distinct and deep transverse groove 
near the base bounded at the sides by a short longitudinal 
groove ; elytra extremely minutely punctured, only visible under 
a very strong lens; underside and legs fulvous, the sides of 
the breast sometimes piceous; the posterior tibiae mucronate ; 
the first joint of the posterior tarsi as long as the two following 
joints together ; claws appendiculate. 
Hab. Aden, January (Doria and Beccari). 
This small species seems allied to L. africana Chap. but differs 
in its smaller size, the impunctate head and thorax and the 
fulvous tarsi. 
4, Diorhabda (?) maculiceps, n. sp. 
Obscure testaceous; a spot at the vertex, one at each femora, 
five at the thorax and the underside, piceous; elytra obscure 
metallic greenish, finely punctured and pubescent, the lateral 
margin, testaceous. 
Var. Elytra pale testaceous, indistinctly marked with metallic 
aeneous longitudinal stripes. 
