326 PROCEEDENGS OF THE NATIONAL MUSEUM vol. no 



second segment shorter than next two; club 0.21 by 0.09 (male) to 

 0.28 by 0.10 mm. (female). Eyes moderately prominent; frons nar- 

 row, equal to width of dorsal tip of beak, with slight median impres- 

 sion and a lateral row of confluent punctures. Prothorax at base one- 

 fourth to one-third wider than long, middle narrower than base; sides 

 strongly expanded laterally at base, nearly parallel to middle, rounded 

 to constricted apex; in profile dorsal surface nearly flat, slightly sin- 

 uate before base and apex; punctation 0.04 to 0.05 mm. in diameter, 

 deep, interspaces less than diameter of punctures, slightly convex; 

 basal fovea deep, linear, extending one-third length of prothorax. 

 Elytra at humeri one-thu'd wider than prothorax at base, 2.75 times 

 as long as prothorax, length to width as 4:3; intervals twice as wide 

 as striae, moderately convex, with one irregular row of fine punctures 

 bearing fine scales; striae deep. Scutellum triangular, 0.12 by 0.08 

 mm., with median furrow. Front femora of male 3.4 times as long 

 as wide, of female 4.2 times as long as wide. Claws with acute basal 

 tooth. 



Special male characters: Tibia 2 with moderately long, simple 

 mucro; aU femora much stouter than those of female. 



Material examined: Male and female compared with type of 

 punctulirostre by G. A. K. MarshaU, two m.ales and two females 

 determined as A. spectator by Sharp, and six other specimens. 



Known distribution: 



Mexico: Morelos: Cuernavaca (BMNH). Mexico: Temescaltepec, Real de 

 Arriba, July 1932, H. Hinton (CAS). Puebla: Near Huauchiuango, June 

 1954, D. G. Kissinger (DGK). 



Guatemala: Aceituno; San Ger6nimo (BMNH). 



Remarks: Specimens from Huauchinango, Puebla, were taken 

 while beating in a scrubby oak and pine forest at about 5,000 feet 

 elevation. 



A. punctulirostre was described from two females. The original 

 description is rather brief and is more or less a comparison with A. 

 gracilirostre Sharp. A. spectator was described in more detail with 

 the statement that only the middle tibiae of the male are mucronate. 

 A comparison of specimens reveals no significant differences. 



Apion suhmetallicum Group 



The four species comprising this group apparently overlap in geo- 

 graphical range. Apion auriferum Wagner and A. perpilosum Wagner 

 occur in Guatemala; the latter, A. suhmetallicu7n Boheman, and A. 

 hadromerum Wagner occur in Guerrero, Mexico. 



A. suhmetallicum is about 1 mm. longer than the other species and 

 the antennae are inserted more distad on the beak. The beak of the 

 male of A. hadromerum is clothed with long, bristly pubescence. The 



