BEETLE GENUS ONTHOPHAGUS — ^HOWDEN, CARTWRIGHT 47 



others taken by Howden in malt cans from central Florida, the setae 

 are whitish and quite conspicuous. In other respects they match 

 Blatchley's description (1916, p. 94). 



0. striatulus floridanus may be distinguished from other North 

 American species by the characteristics given under s. striatulus. 

 It may be distinguished from s. striatulus by the combination of black 

 color, rather tuberculate pronotum, especially posteriorly, lack of 

 alutaceous sculpture, and more distinct tubercles on the elytral inter- 

 vals. Usually 0. striatulus floridanus may be separated from 0. 

 orpheus orpheus and o. pseudorpheus by the presence of three irregular 

 rows of tubercles on the second and thu'd elytral intervals. 



As mentioned above, food preferences of 0. s. floridanus are similar 

 to s. striatulus in that they are attracted to fungi and may be trapped 

 in cans baited with malt. Nothing is known of the larval habits. 



Onthophagus orpheus orpheus (Panzer) 



Plate 4, Figures 26 and 27 



Scarahaeus orpheus Panzer, 1794, p. 5. 



Onthophagus orpheus (Panzer) Sturm, 1843, p. 107. — Haldeman and LeConte, 

 1853, p. 54.— Lacordaire, 1856, p. 108.— LeConte, 1863, p. 36.— Gemminger 

 and Harold, 1869, p. 1034.— Blatchley, 1910, p. 919.— Schaeflfer, 1914, p. 

 295.— Leng, 1920, p. 249.— Dawson, 1922, p. 179.— Boucomont and Gillet, 

 1927, p, 207.— Boucomont, 1932, p. 311.— Howden, Cartwright, and Halflfter, 

 1956, p. 11. 



Male majors. — Length 6.5 to 9.0 mm., width 3.7 to 5.0 mm. 

 Dorsal surfaces dark green, often with blue or coppery reflections, 

 smooth and shining between punctures; ventral surfaces shining 

 piceous, green, vaguely alutaceous between coarse punctures; legs 

 greenish brown or black; antennae brownish black, the club grayish 

 black. Clypeus sharply reflexed anteriorly, arcuate, truncate, or 

 vaguely emarginate; clypeal disc coarsel}^, rugosely punctate, more so 

 laterall}^; numerous fine secondary punctures often between the 

 scattered, coarse, setigerous punctures of the clypeus, vertex, and genae ; 

 clypeal carina obsolete to barely indicated; carina on vertex obsolete 

 medially, indicated laterally by a single short tubercle or horn above 

 and behind each eye. 



Pronotum margined anteriorly and laterally, convex, with a broad 

 anterior process extending over the head, normally extending almost 

 as far as the posterior edge of the clypeus. Process bifurcating over 

 the posterior part of the vertex and with the ends of the bifurcations 

 usually ending in hatchet-shaped tips; the process curving evenly 

 downward when viewed laterally, tips not approaching the clypeus as 

 closely as in cynomysi. Pronotal surface with coarse punctures, 

 laterally each bearing a short seta; most punctures except at posterior 



