78 ENTOMOLOGICAL NEWS. [Feb., 'l2 



in sculptilis but much wider. Thorax subquadrate, base one-fifth wider 

 than apex, sides feebly curved, the basal third almost parallel ; margins 

 less flattened and disc much less uneven than in sculptilis, the surface 

 marked with fine transverse wavy lines, median line very fine, entire. 

 Elytra with the alternate intervals broader, less convex, each with an 

 irregular row of 10 to 12 large ocellate punctures ; striae very finely 

 punctate, the rows of punctures strongly sinuous on apical half ; 

 humeral stria strong, reaching three-fourths to apex. 



Measurements; male, length 24 mm.; width of elytra at base 10 mm.; 

 female, length 26 mm. ; width of elytra at base 12 mm. Of sculptilis, 

 (inserted for comparison) length 17-19 mm.; width of elytra at base 

 7.5 mm. 



One pair in Bolter collection labeled "H. Springs, Ark., 

 10-6." 



From sculptilis, which it resembles only in the curious sculp- 

 ture of the elytra, ocellatiis differs in the much greater size, it 

 being slightly longer and much wider and more robust than the 

 rather common D. purpuratus Bon. The upper surface of 

 sculptilis is distinctly shining, of ocellatiis wholly opaque. The 

 basal depressions and median line of thorax of sculptilis are 

 much deeper and the surface of the basal half therefore much 

 more undulating than in occllatus. Finally the elytral sculp- 

 ture, though at first glance resembling sculptilis, is very differ- 

 ent, the intervals containing the ocellate punctures being wider 

 and much less broken and distorted, the punctures themselves 

 larger and mostly placed along the middle of the interval, 

 whereas in sculptilis they are at one side or in the striae. The 

 rows of fine punctures of the striae are more distinct and on 

 the basal halves much less sinuous in ocellatiis than in the other 

 species. 



It is strange that so large and striking a species as ocellatus 

 has heretofore been overlooked. It is, of course, possible that 

 it is in a number of collections, as in that of Bolter, confused 

 with sculptilis. Its range may also be found to be very limited 

 in area. While Say does not give the length of sculptilis in his 

 original description, the form and size of his figure and the 

 details of the elytral sculpture there shown, prove that he had 

 before him the form now widely known as that species and not 

 the one above described. 



