DIAPERESri NORTH OF MEXICO — TRIPLEHORN 443 



1898 [often cited as 1894], p. 534.— Baudi, 1876b, p. 106; 1876a, p. 229.— 

 Fowler, 1891, p. 16.— SchUsky, 1893, p. 355.— Desbrochers, 1902, p. 12. 



Diaperis pida Mduetries, 1832, p. 203.— Maklin, 1872, p. 247. 



Neomida pida (Menetries). — Faldermann, 1837, p. 65. 



Platydema bifasciatus (Saj'). — Haldeman, 1848, p. 102. 



Phylethus populi Redtenbacher, 1849, p. 589. 



Phylethus quadnpustulatus (Stephens). — jNIulsant, 1854, p. 204. — Schi0dte, 1879, 

 pp. 555, 586, tab. 9, figs. 17-27. 



Platydema pidum (Menetries). — Gemminger and Harold, 1869, p. 1952. 



Alphitophagiis bifasciatus (Say). — Horn, 1870, p. 385. — Fauvel, 1889, p. 155. — 

 HamUton, 1890, p. 43.— Heyden, 1890, p. 132.— Champion, 1895, p. 283.— 

 Everts, 1901, p. 258; 1922, p. 376.— Reitter, 1911a, p. 340, tab. 128, fig. 23; 

 1911b, p. 268.— Kuhnt, 1913, p. 746, fig. 67.— Chittenden, 1917, p. 282.— 

 Back and Cotton, 1922, p. 39, fig. 58; 1938, p. 36; 1953, p. 36, fig. 50; 1955, 

 p. 36, fig. 50.— Zacher, 1927, p. 113, tab. 4, fig. 18.— Portevin, 1934, p. 26, fig. 51.— 

 Cotton, 1941, p. 39, fig. 35; 1950, p. 39, fig. 35; 1956, p. 65, fig. 48.— 

 Daggy, 1946, p. 254. 



Alphitophagus pida (M6netries). — Faust, 1875, p. 251. 



Phylethus bifasciatus (Say). — Blatchley, 1910, p. 1265. 



Alphitobius (lap. cal.) quadripustulatus (Stephens). — 'Reitter, 1914, p. 81. 



Alphitophagus bifasciatus Say aber. unifasciatus Donisthorpe, 1925, p. 115. 



Alphitophagus quadripustulatus Stephens ssp. judaeus Roubal, 1929, p. 97. 



Descriptiox. — 'Elongate oval, light reddish brown dorsally with two 

 dark, transverse bands on elytra, shining. Head of male (pi. 6, fig. 57) 

 peculiarl}^ sculptured as follows: clypeus greatly swollen, reflected, 

 grooved dorsally on each side for reception of genae which are pro- 

 longed in front of eyes and above antennal insertions to form prom- 

 inent, flattened, slightly recurved tubercles; two longitudinal, parallel, 

 carinate ridges extending from middle of frons to epistomal suture; 

 surface finel}^ and densely punctulate. Head of female simple, clyp- 

 eus prolonged in front, genae sUghtly raised above antennal insertions; 

 surface coarsely and densely punctured. In both sexes, antennae, 

 mouthparts, and legs yellowish; eyes large, convex, broadly but shal- 

 lowly emarginate anteriorly, posterior margia abruptly elevated. 

 Pronotum reddish, sometimes with obscure dark mottling, slightly 

 more than Iji times as broad as long, sides strongly arcuate, w-idest 

 just anterior to middle, finely beaded, apical margin truncate, base 

 broadly and feebly bisinuate, both basal and apical angles obtuse, 

 apical angles broadly rounded, basal angles rectangular; surface rather 

 coarsely and densely punctured. Elytra reddish, a considerable 

 portion of base, a median and subapical transverse band black, these 

 often connected by a more or less complete sutural stripe of the same 

 color; scutellum reddish; striae scarcely impressed, finely and dis- 

 tantly punctured; intervals subconvex to flat, minutely but rather 

 densely punctulate, each puncture bearing a minute seta. Ventral 

 surface of pronotum thickened, coarsely and shallowly punctured; 

 mesostema, metasterna, pleura, and first four abdominal segments 



