80 PROCEEDINGS OF THE NATIONAL MUSEUM vol. ii4 



Type locality. — Dunedin, Fla. 



Specimens examined. — 3 males, including holotype. 



Distribution. — (See fig. 8, p. 64.) 



Florida: Dunedin, Pasco Co. 



Remarks. — Dr. Blatchley's holotype (by monotypy) was col- 

 lected "on the wing" at Dunedin, Jan. 7, 1918. His second specimen, 

 also from Dunedin, was taken Jan. 22, 1921. The third specimen 

 seen was collected in Pasco County, Fla., 20 to 50 miles northeast 

 of Dunedin, March 20, 1957, by H. V. Weems, Jr. Nothing fm-ther 

 is known concerning this species. 



0. aciculatulus is perhaps nearest 0. oklahomensis in size but is also 

 similar to small 0. pennsylvanicus and 0. tuberculifrons. However, it is 

 separated from all these by the conical pronotal protuberance of the 

 males, the shallow pronotal punctures, and the larger, wider eyes. 

 It is also quite similar to 0. subaeneus which, however, is usually 

 very shiny, has a greenish or coppery lustre, lacks tubercles on the 

 clypeus, and is much more hairy. 



Onthopliagus oklahomensis Brown 



Plate 6, Figure 58 



Onihophagus oklahomensis Brown, 1927, p. 128. — Boucomont, 1932, p. 319. — 

 Leng and Mutchler, 1933, p. 38. 



In this species, no differences in the often sexually dimorphic 

 morphological features of the males were noted; the followmg descrip- 

 tion, therefore, omits separate descriptions of "major" and "minor" 

 males. 



Males. — Length 2.8 to 3.9 mm., width 1.8 to 2.4 mm. Dorsal 

 color black, elytra occasionally piceous; head and pronotmn shining, 

 elytra dull but less so than in 0. pennsylvanicus; ventral color piceous 

 to black, legs brown to piceous. Head with clypeus roimded, some- 

 times slightly truncate apically, margin slightly, rather evenly re- 

 flexed; disc finely punctate medially, with scattered, coarse, setigerous 

 punctures laterally; clypeal carina obsolete, but indicated by a broad 

 convexity at the juncture of the clypeus and the frons; frons nearly 

 flat with scattered fine and coarse punctures; genae scarcely produced, 

 depressed, the surfaces with occasional punctures; vertex usually 

 with a vague, transverse ridge indicating the obsolete carina; surface 

 behind the ridge with scattered, coarse, setigerous punctures. 



Pronotum completely margined, poorly so posteriorly; anterior angles 

 abruptly rounded; disc weakly convex, lacking any protuberance, 

 heavily punctate with a mixture of large and small punctures. The 

 large punctm-es shaUow, centrally setigerous and separated by more 

 than 1 diameter; smaller punctures, much less numerous, scattered 



