SUBGENUS TRICHAPION — ^KISSINGER 259 



Species of Uncertain Position 



Apion (Trichapion) aequabile Fall 



Figure \,h,c,g,i. 

 Apion aequabile Fall, Trans. Amer. Ent. Soc, vol. 25, p. 148, 1898. 



Description: Length, 1.6 to 2.0 mm. Moderately robust. Black; 

 pubescence conspicuous, coarse, white, sparse, coarser and denser 

 laterally. Male beak one-eighth longer than prothorax; deflexed in 

 apical third; in lateral view basal one-third parallel, attenuate through 

 middle third, apical third nearly parallel, five-sixths as thick as basal 

 region; from dorsal view widest in basal third at antennal insertion 

 where it is one-fourth wider than base, attenuate to apex, there three- 

 fourths as wide as base; sparsely pubescent m basal two-thirds, 

 punctures there coarse, apical one-third with fine punctures, shining. 

 Female beak as long as head and prothorax combined, one-half 

 longer than prothorax, slightly curved, apical half nearly cylindrical, 

 somewhat depressed near tip; strongly punctiu-ed laterally in basal 

 half, fine scales in two short sulci above antennal insertion, shining 

 and glabrous beyond antennal insertion. Antennae inserted at dis- 

 tance from eye equal to width of frons, of male in basal fom'th of 

 beak, of female at basal fifth of beak; first segment slightly shorter 

 than next two, second segment a httle longer than third, club 0.18 

 by 0.06 mm. Eyes moderately prominent; frons wider than dorsal 

 tip of beak, with a wide, flat median area and one lateral row of punc- 

 tures. Prothorax at base one-fifth wider than long, middle as wide 

 as base, apex two-thirds to thi'ee-fourtbs as wide as base; sides with 

 moderate lateral expansion at base, slightly diverging to middle, 

 rounding to constricted apex; in profile dorsal surface very slightly 

 arcuate from base to apex; punctation shallow, sparse, 0.03 mm. in 

 diameter, interspaces about one-half as great as diameter of punc- 

 tures; basal fovea nearly obsolete, elongate. Elytra at humeri one- 

 third wider than prothorax at base, 2.5 times as long as prothorax, 

 length to width as 10:7.5; intervals twice as wide as striae, moderately 

 convex, with two rows of fine punctures bearing fine scales; striae 

 deep. Scutellum narrow, elongate, 0.08 by 0.04 mm. Claws with 

 strong, acute basal tooth. Front femora 3.3 times as long as wide. 



Special male characters: Tibiae 2 and 3 armed with subdentate 

 mucrones. 



Types: I hereby designate the lectotype of this species as the male 

 specimen (MCZ 25071) in the Fall Collection labeled La Chuparosa. 

 Cotypes are in the J. L. LeConte Collection and in the California 

 Academy of Sciences. 



