VITTATE CHRYSOMELID BEETLES DISONYCHA — BLAKE 67 



Remarks: In the Museum of Comparative Zoology is a box of 

 specimens collected by Davis in Argentina and sent to C. A. Dohrn, 

 who in turn sent them to von Harold, who described many of them 

 in volume 14 of the Coleopterologischc Heft. In this Davis collection 

 are three specimens not labeled types but labeled by Hagen as D. 

 prolixa Harold. They correspond very well with Harold's descrip- 

 tion. The markings of the prothorax might also be construed as a 

 "corona reversa" but the pale undersurface does not agree with 

 Germar's old description of D. copulata. Moreover, this is a shiny 

 and not alutaceous beetle. 



Dr. K. Delkeskamp of the Zoological Museum of Humboldt Univer- 

 sity, Berhn, writes that the Harold material received from C. A. 

 Dohi-n is probably in the Natural History Museum at Stettin if it is 

 in existence. At the present time material at that museum is not 

 accessible. 



Disonycha copulata (Germar)? 



Figure 74 



Haltica copulata Germar, Insectorum species novae aut minus cognitae, pp. 



610-11, 1824. 

 Disonycha copulata Harold, Coleopterologische Hefte, vol. 14, p. 106, 1875. 



Between 5.5 and 6.5 mm. in length, broadly oblong oval, alutaceous, 

 moderately shiny, finely punctate; pale yellow; head with a dark 

 occipital spot, darkened tubercles and mouthparts; prothorax with 

 two wide lateral and an elongate median spot; elytra with broad 

 sutural vitta uniting with marginal vitta, the marginal vitta narrow 

 and often not extending about humerus, median vitta wide; body 

 beneath pale, usually with darkened sides to breast and abdomen, 

 legs except coxae usually entirely dark, tibiae sometimes with pale 

 streak. 



Head pale with large dark occipital spot often running down front 

 to darkened tubercles, labrum dark, a row of punctures from the large 

 puncture near eye down to tubercles, carina broad and little produced, 

 interocular space about half the width of the head. Antennae dark 

 with the three basal joints pale edged. Prothorax about twice as 

 broad as long, not very convex and somewhat depressed along the 

 base, somewhat shiny although alutaceous, finely punctate, pale with 

 a broad irregular lateral spot on each side curving forwards towards 

 the center into a point, an elongate diamond-shaped spot in middle. 

 Elytra broad and not very convex, moderately shiny although alu- 

 taceous, finely and more distinctly punctate than prothorax, a dark 

 sutural vitta uniting with a narrow submarginal vitta, the latter 

 sometimes not covering margin towards base and fading away about 

 humerus; median vitta broad. Epipleura dark. Body beneath pale 



