92 PROCEEDINGS OF THE NATIONAL MUSEUM vol. los 



apical curve. Body beneath entirely black and shining; anterior 

 tibiae in male somewhat thickened, middle tibiae widely emarginate 

 with prominent hook near apex, tibiae with small spine at apex. 

 Length 3 mm.; width 1.3 mm. 



Type: Male in Museum of Comparative Zoology (No. 29610); one 

 paratype, from "Colombien" (USNM 63363). 



Remarks: The wide emargination of the middle tibiae in the male is 

 greater than in any of the rest of the species with excised tibiae, but it 

 is only a matter of degree. The enlargement of the antennal joints is 

 the same as in L. marginatum Jacoby, In fact, except for the wider 

 notching of the tibiae and the darker color, which has the same pattern 

 on the elytra as in marginatum, this species closely resembles L. 

 marginatum and might be only a color phase. 



Liiperosotna aniplicorne (Baly) 



Figure 4,/i 

 Diabrotica amplicornis Baly, Trans. Ent. Soc. London, p. 446, 1886. 



About 5 mm. in length, oblong oval, the pronotum and elytra 

 distinctly punctate, shining, pale yellow-brown, the head with two 

 dark spots on occiput and dark labrum, antennae with joints 9-11 dark 

 and in the male thickened, prothorax with broad dark lateral areas, 

 elytra with median and lateral dark vittae joined at apex, legs and 

 undersurface, except prosternum, dark. Middle tibiae of male 

 notched. 



Head with interocular space half its width; occiput impunctate, 

 with wide dark areas on either side narrowly separated by pale median 

 line; front brownish, the frontal tubercles much swollen, the inter- 

 antennal area with a carina down front, labrum dark. Antennae in 

 male with joints 9-11 dark and enlarged in the male, no female 

 examined. Prothorax wider than long with slightly curved sides and 

 semicircular depression in lower half, surface shining and distinctly 

 punctate, yellow-brown with wide black area on either side extending 

 from anterior nearly to basal margin. Scutellum brown. Elytra 

 moderately shining, quite densely and rather coarsely punctate, a 

 depression from intrahumeral sulcus down about one-fourth the length 

 of the elytra ; yellow-brown with a wide dark median and lateral vitta 

 uniting shortly before the apex, leaving the suture and the lateral 

 margin narrowly pale, and a slightly broader median pale vitta. 

 Epipleura disappearing before apical curve, body beneath (except 

 prosternum) and legs deep brown, middle tibiae of male notched near 

 apex; tibiae with line terminal spine; anterior tibiae swollen in male, 

 first tarsal joint of anterior legs cylindrical, fii'st tarsal joint of hind 

 legs as long as remaining joints. Claws appendiculate. Length 

 4.8 mm.; width 2.2 mm. 



