260 PROCEEDINGS OF THE NATIONAL MUSEUM voL.no 



Material examined: Lectotype and 30 specimens. 

 Known distribution: 



United States: Arizona: Chiricahua Mts., July 4, 1940, D. E. Hardy (UK); 

 Globe (CU); Huachuca Mts., Ramsay Canyon, Cochise Co., July 16, 1948, C. 

 and P. Vaurie (AMNH); Santa Rita Mts., Madera Canyon, beating oak (CU); 

 Santa Rita Mts. (USNM); Whiteriver, July 4, 1950, D. E. Hardy (UK). 



Mexico: Baja California: La Chuparosa (MCZ, CAS). Chihuahua: Chihua- 

 hua, H. F. Wickham (MCZ). Guerrero: Rio Balsas, H. F. Wickham (TLCC). 



Apion (Trichapion) aestiniahile Wagner 



Apion {Tricli apion) aestimabile Wagner, Arch. Naturg. Berlin, vol. 78, p. 115, 

 1912. 



Description: This species was described from a single male in the 

 Wagner Collection which was not seen by the author. The following 

 notes are taken from the original description. 



Length, 1.8 mm. 



Very near A. mexicanum Wagner, head much smaller and narrower, 

 frons flat with two rows of fine, scale-bearing punctures. Male beak 

 a little longer than head and prothorax (A. mexicanum beak of male 

 equal to head and prothorax combined), distinctly less curved than 

 A. mexicanum, stouter, distinctly swollen at antennal insertion, thence 

 slightly attenuate. Antennae of male inserted somewhat in front of 

 middle of beak. Prothorax at base one fifth wider than long, sides 

 nearly parallel to middle, strongly constricted at apex, there one- 

 fifth naiTOwer than base; punctation sparser and deeper than A. 

 mexicanum; basal fovea continues on to near apex, but deep onlv at 

 base. 



Type locality: Veracruz, Mexico. 



Remarks: The insertion of the antennae somewhat in front of the 

 middle of the beak will distinguish this species from all known mem- 

 bers of the subgenus Trichapion. 



Apion {^Trichapion) ulbidulum Fall 



Figure l,d,f,h. 

 Apion alhidulum Fall, Journ. New York Ent. Soc, vol. 26, p. 219, 1918. 



Description: Length, 2.0 to 2.2 mm.; width, 1.00 to 1.12 mm. 



Robust. Black; densely clothed with appressed white scales, 

 scutellum and beak beyond basal one-fifth glabrous. Male beak 

 slightly longer than prothorax, female beak shorter than head 

 and prothorax combined, one-fourth longer than prothorax; mod- 

 erately evenly curved; ddated at antennal insertion, attenuate to 

 middle, cylindrical beyond middle; coarsely punctured in basal one- 

 half, sparsely punctured apically. Antennae inserted at basal one- 

 fourth, male, at basal one-fifth, female, at distance from eja equal 



