SUBGENUS TRICHAPION — KISSINGER 331 



shining. Antennae inserted at distance from eye four-fifths greater 

 than width of frons at basal one-third of beak; first segment longer 

 than second, shorter than next two; second segment shorter than 

 next two; club 0.24 by 0.08 mm. Eyes moderately prominent; frons 

 moderately wide, with median sulcus and two or three lateral rows of 

 moderate punctures. Pro thorax slightly wider at base then long, 

 middle slightly narrower than base, apex four-fifths as wide as base; 

 sides slightly expanded laterally at base, nearly parallel to middle, 

 slightly rounded to broadly constricted apex; in profile dorsal sm-face 

 flat; punctures deep, 0.03 mm. in diameter, interspaces narrow, about 

 one-half as wide as diameter of punctures, convex, shining, alutaceous; 

 basal fovea deep, linear, extending one-fifth length of pro thorax. 

 Elytra at humeri three-fifths wider than prothorax at base, 2.6 times 

 as long as prothorax, length to width as 13:9; intervals less than 

 twice as wide as striae, flat, with two rows of moderately fine punctures; 

 striae deep. Scutellum elongate, triangular, 0.09 bj^ 0.06 mm., with 

 a median furrow. Front femora four times as long as wide. Claws 

 with acute basal tooth. 



Special male characters: Tibiae 2 and 3 armed with long blunt 

 mucrones. 



Material examined: 10 males, including Boheman's type and a 

 male compared with the type of A. hystriculum by G. A. K. Marshall. 



Known distribution: 



Mexico: Puebla: Near Huauchinango, June 1954, D. G. Kissinger (DGK). 

 Distrito Federal: Mexico City, A. W. Barret (USNM). Mexico: Amecameca, 

 June 8, 1897, Koebel Collection (CAS). Guerrero: Xucumanatlan, Omilteme, 

 H. H. Smith. 



Remarks : Material from Huauchinango was taken while beating 

 in a scrubby oak and pine forest at about 5,000 feet elevation. 



Apion suhmetallicum has not been recognized since its description 

 in 1839. Sharp (1890) simply listed the name, stating that he could 

 not recognize the species in any material before him. An examina- 

 tion of Boheman's type, through the kindness of Dr. Rene Malaise, 

 has revealed the above synonymy. 



Apion patruele Group 



The 10 species comprising this group are characterized by their 

 robust body; generally deep, elongate pro thoracic basal fovea (lacking 

 in rufipenne and evustum); and the strongly expanded beak over the 

 antennal insertion. Also the second and thu'd paus of tibiae of the 

 male are mucronate, tibia 1 of the male is simple, prothorax is widest 

 at base, and the beak is sub cylindrical in the apical half. The range 

 of three species, A. patruele Smith, A. perforicolle Fall, and A. porcatum 

 Boheman overlaps in the eastern United States. Three species, A. 



