VITTATE CHRYSOMELID BEETLES DISONYCHA — BLAKE 41 



the siitiiral vitta at apex. Epiplem-a dark, with a pale margin. Body- 

 beneath entirely pale, femora pale with the apex dark, tibiae bicolored, 

 tarsi dark. Length 7.5 to 8 mm., width 3.2 to 3.4 mm. 



Type and paratypes: In BM, collected at Runaway Bay, Jamaica, 

 April 10, 1905, by Lord Walsingham, and at Hill Gardens, Jamaica, 

 July 6, 1923 by C. C. Gowdey. 



Other localities: Jamaica: Clydesdale, W. G. Lynn; Stony Hill, 

 Chapin and Black welder. 



Remarks: The only other vittate Disonycha from the West Indies 

 is D. spilotrachela Blake, a much smaller species, found in Cuba, Puerto 

 Rico, and Hispaniola but not yet found in Jamaica. 



Disonycha panamensis Jacoby 



Figure 40 



Disonycha panamensis Jacoby, Biologia Central!- Americana, Coleoptera, vol. 6, 

 pt. 1, p. 313, 1884. 



From 7 to 8 mm. in length, elongate oblong oval, faintly alutaceous 

 and moderately shining, densely and distinctl}^ punctate; pale yellow; 

 the head with a broad dark occipital band sometimes extending to 

 frontal tubercles; pro thorax often with a Y-shaped median spot com- 

 posed of three spots, varying in width, and a small lateral spot on 

 each side; elytra with sutural vitta uniting at apex with submarginal 

 vitta, a broad median vitta; body beneath dark, with prosternum, 

 apex of abdomen, and femora pale; an unusually wide explanate 

 margin on pro thorax and elytra. 



Head with interocular space more than half width of head, a circle 

 of punctures about fovea near eye, frontal tubercles well defined, 

 area between antennal sockets wide, rounded, and slightly produced, 

 head pale with broad dark band on occiput usually coming down to 

 tubercles, mouthparts dark. Antennae moderately long, dark, basal 

 joint edged with pale. Prothorax about twice as wide as long, not 

 very convex but flattish with a wide, curved explanate margin, 

 somewhat depressed over scutellum, surface faintly alutaceous and 

 moderately shiny, very finely punctate, pale with a dark median 

 marking consisting of three more or less confluent spots forming a Y, 

 and two small lateral spots, in one specimen all the spots more or less 

 united into a confluent band. Elytra elongate, with wide explanate 

 pale margin, surface faintly alutaceous and moderately shiny, more 

 distinctly punctate than prothorax, pale, with broad dark sutural 

 vitta uniting with moderately broad lateral vitta, also a broad median 

 vitta; epipleura pale. Body beneath covered with pale pubescence, 

 dark, with the prosternum and tip of abdomen pale, femora reddish, 

 tibiae and tarsi dark. Length 7 to 8 mm., width 3.6 to 4 mm. 



319188—55 6 



