SUBGENUS TRICHAPION — KISSINGER 261 



to ^vidth of froiis; first segment a little shorter than next two, second 

 equal to next three combined, club 0.18 by 0.09 mm. Eyes prominent; 

 frons moderately wide, densely clothed with white scales on either 

 side of bare median sulcus. Prothorax slightly wider at base than 

 long, middle as wide as base, apex three-fourths as wide as base; 

 sides with slight basal lateral expansion, slightly sinuate before base, 

 apex moderately constricted ; in profile dorsal surface slightly arcuate ; 

 punctation moderately deep, 0.03 mm. in diameter, interspaces about 

 one-half as gi'eat as diameter of punctures; basal fovea deep, elongate, 

 a slightly raised longitudinal median carina occurs in apical one-half. 

 Elytra at humeri two-fifths wider than prothorax at base, about 2.5 

 times as long as prothorax, length to width as 11:8.5; intervals flat, 

 more than twice as wide as striae, with three or four rows of punctures 

 bearing scales; striae moderately deep, with a single row of scales. 

 Scutellum elongate, tmce as long as wide, 0.12 by 0.05 mm., with 

 deep, median basal fovea. Front femora three times as long as wide. 

 Claws with a large, acute basal tooth. 



Special male characters: Tibiae 2 and 3 armed with moderately 

 long, straight, denticulate mucrones. 



Material examined: Type, male (MCZ 25073), labeled Coachella, 

 Calif., in Fall Collection; and 25 specimens. 



Known distribution: 



United States: California: Riverside Co., Coachella (MCZ); Palm Springs 

 (CU, UK, USNM). Arizona: Fort Yuma (USNM). 



Apion (Trichapion) alticola Wagner 



Apion (Trichapion) alticola Wagner, Arch. Naturg. Berlin, vol. 78, p. 107, 1912 



Description: This species was described from a pair of specimens 

 in the British Museum (Natural History) not seen by the author. 

 The following notes are taken from the original description. 



Length, 2.2 to 2.4 mm. 



Very near A. imitator Wagner, with different beak and legs. Male 

 beak equal to head and prothorax combined, stouter than A. imitator, 

 more strongly curved, more distinctly widened at antennal insertion, 

 more distinctly attenuate toward apex; female beak much stouter 

 than in A. imitator, only a little longer than head and prothorax, 

 more strongly curved, punctation deeper, denser; at antennal insertion 

 beak of female of A. imitator more distinctly swollen than A. alticola. 

 Frons striate, middle stria deeper. Legs, especially femora, stouter, 

 tarsus longer as in .A. mediocre Sharp. Male mucrones sharper than 

 those of A. imitator, somewhat shorter than those of A. mediocre. 

 Scutellum a little larger than that of A. mediocre, but distinctly 

 smaller than that of A. imitator, deeply grooved, enclosed in a groove. 

 Prothorax and elytra the same as A. imitator. 



