8g PROCEEDINGS OF THE NATIONAL MUSEUM vol.89 



,inon in Zavala and Dimmit Counties in middle March; March 5 

 ({Dimmit County) to June 22 (Del Rio). California: Riverside, 

 Imperial, and San Diego Counties only, February to April; apparently 

 locally common at Indio early in April. New Mexico: Mesilla Park 

 ;[U.S.N.M.]. Arizona: Tucson and Yuma, in May [U.S.N.M.j. 

 Kansas: Syracuse (Schwarz) [Robinson]. Mexico: "Mexico" [Casey]. 

 Cited in literature (record questionable): "Cape San Lucas, Lower 

 California" (Horn, 1878). 



Remarks. — This species, with L. pulcher and L. reinhardi, forms a 

 very definite complex and the females cannot well be separated, though 

 the males are distinct in internal genitalic characters. Apparently a 

 common species in much of the Southwest, coming frequently to light. 

 The one Mexican example in the Casey collection agrees exactly with 

 the United States females; this example is probably from the old 

 Levette collection. 



PHYLLOPHAGA (LISTROCHELUS) PULCHER (LInell) 



Figures 8, g-i 



Ijistrochelus pulcher Linell, Proc. U. S. Nat. Mus., vol. 18, p. 730, 1896. 



Male. — Elongate-oval, rufous to rufopiceous or rufocastaneous, with 

 varying amounts of pruinosity on the thorax, elytra, pygidium, and 

 ■abdomen, the elytra often entu'ely pruinose ; at least the discal part of 

 thorax and head always shining rufous; glabrous above except for 

 elytra. Head with very strong transverse carina; front very densely 

 ;and coarsely punctured, except for a narrow smooth area along the 

 clypeal suture; clypeal suture biarcuate, fine, scarcely impressed; 

 €lypeus very long, less densely punctured than front and center of disk, 

 often quite smooth, apex subtruncate and strongly reflexed, angles 

 •narrowly rounded. Antenna 10-segmented, club testaceous, sub- 

 equal to, or very slightly longer than, funicle. Thorax finely, densely, 

 irregularly punctured, most closely so at front margin and near sides; 

 lateral margin ciliate, enthe behind and slightlj^ sinuate in front of the 

 median dilation; hind angles distinct but obtuse, front angles less dis- 

 tinctly angulate; base and apex with strong marginal lines, basal 

 margin ciliate. Elytra finely, densely, and regularly punctate, with 

 fine suberect hairs, surface subrugosely wrinkled; striae including 

 sutural rather feebly indicated. Pygidium strongly convex, finely 

 densely punctate, with short, suberect hairs; basal three-fifths usually 

 strongly pruinose and apical part usually strongly shining ; apex ciliate, 

 truncate. Abdomen very slightly, hardly noticeably concave in basal 

 three segments, the fourth slightly convex, and fifth somewhat 

 flattened; surface sparsely, finely, setigerously punctured; fifth seg- 

 ment rather smooth in basal half, punctured in apical half, and either 



