VITTATE CHRYSOMELID BEETLES DISONYCHA — BLAKE 35 



two specimens from Ventanas, Mexico. One of these may be the 

 specimen in MCZ (Bowditch collection) that bears the name label 

 and also "Ventanas, Dm-ango, Hoge, Jacoby 2nd collection." In some 

 unnam.ed material lent me by the British Museum are three other 

 specimens of this series from Ventanas; they bear the label (?Jacoby's) 

 ''Disonycha sp. no v." 



Other localities. Mexico: Chapala, Jalisco, R. B. Lattimore; 

 Cuernavaca, Morelos, Salle. Guatemala: Yepocapa, H. T. Dalmat; 

 Tucuru, 1,600 ft., C. and P. Vaurie; Chiquimula, 1,000 ft., C. and P. 

 Vaurie. Hondm^as: Tegucigalpa, F. J. Dyer. El Salvador: Dr. Vera 

 Wellborn. 



Remarks : Jacoby failed to recognize certain pale specimens of this 

 species in which the short apical line is very faint and described them 

 as D. brevicoUis nearly twenty years after he had described D. hrevili- 

 neata. All these specimens from Ventanas are very pale but on close 

 examination one can discern the short apical vitta. 



Disonycha ovata Blake 



Figure 24 

 Disonycha ovata Blake, Bull. Brooklyn Ent. See, vol. 26, p. 79, 1931. 



About 5 mm. in length, oval, shining, elytra distinctly punctate; 

 pale yellow; deeper orange head, pro thorax, and legs; narrow dark 

 sutural, median, and submarginal elytral vittae not uniting at the 

 apex; antennae and tarsi deeper brown. 



Head with interocular space half width of head, the occiput and 

 mouthparts deeper in coloring, smooth except for the circle of punc- 

 tures near eye, frontal tubercles well marked, carina rounded and 

 moderately wide. Antennae with basal three or four joints and some- 

 times apical joint pale, rest brownish. Pro thorax a little more than 

 twice as wide as long at base, with nearly straight sides narrowed 

 anteriorly, somewhat convex, a slight transverse basal depression 

 over scutellum and at sides, surface faintly alutaceous and very 

 finely punctate. Elytra moderately convex, shining, distinctly and 

 rather densely punctate, pale yellow, with narrow dark sutural vitta 

 not uniting with narrow submarginal vitta, a narrow median vitta; 

 epipleura pale. Body beneath pale, shining beneath the fine pubes- 

 cence, legs pale except the dark brown tarsi and broNvnish apices of 

 tibiae. Length 4.8 to 5.3 mm., width 2.7 to 2.9 mm. 



Type and paratypes: USNM 43363, from San Salvador, El 

 Salvador, August 16, 1905, Frederick Knab. Another specimen from 

 Santa Tecla, no other data. 



Remarks: The small oval shape and short prothorax of this 

 species are its distinctive characters. It is smaller than D. brevilineata 

 Jacoby but similar in the shape of the prothorax. 



