270 PROCEEDINGS OF THE NATIONAL MUSEUM vol. no 



length to width as 13:10.5; intervals twice as wide as striae, slightly 

 convex, with two rows of minute punctures bearing fine scales. Scutel- 

 lum elongate-triangular, 0.12 by 0.06 mm. 



Special male characters: Tibiae 2 and 3 armed with moderately 

 long, triangular mucrones which are acutel}^ dentellate ventrally; 

 mucrones project almost at right angle to long axis of tibiae. 



Material examined: Holotype male (MCZ 25099) in J. L. Le- 

 Conte Collection. 



Known distribution: Type is not labeled but is thought to be 

 from Arizona according to Fall (1898). 



Apion {Trichapion) guatemalense Wagner 



Apion (Trichapion) guatemalense Wagner, Arch. Naturg. Berlin, vol. 78, p. 112, 

 1912. 



Description: This species was described from two females from 

 Guatemala City and Retalhuleu, Guatemala, in the Wagner Col- 

 lection and in the British Museum (Natural History) that were not 

 seen by the author. The following notes are a translation of the 

 original description. 



Length, 1.9 to 2.0 mm. 



Near A. oscillator Sharp. Body pitchy brown, with a rather strong 

 though nearly dull copper luster, especially on head, prothorax, and 

 elytra; with fine sparse white pubescence, pubescence on sides of meso- 

 thorax and metathorax not dense. Beak blackish, legs dark reddish 

 brown. Head wider than long, of female slightly conical, with rather 

 strongly convex though hardly prominent eyes, with a square depres- 

 sion between, vertex with microscopic sculpture, more brassy; frons 

 somewhat smaller than beak at base, with two rows of moderately fine, 

 close, deep punctures; behind eyes head with stronger punctures 

 less densely placed. Beak of female one-fourth longer than head and 

 prothorax combuied, relatively slender, slightly curved. From base 

 to antennal insertion hardly widened, from there to tip slightly attenu- 

 ate, nearly cylindrical at tip; at base with fine punctures, otherwise 

 with very fine sculpture, nearly dull, glabrous. Antennae long and 

 slender, of female inserted in basal third or fourth of beak, scape 

 equals first three funicular segments; fu'st shghtly longer but dis- 

 tinctly stouter than next, elliptical; second barrel-shaped; 3-7 grad- 

 ually diminishing in length. Prothorax is somewhat wider than long, 

 its base bisinuate, hind angles not prominent, nearly rectangular; 

 at base slightly, at apex feebly sinuate, between uniformly, moder- 

 ately rounded; widest at middle, only slightly narrowed toward 

 front, at slightly concave foremargin about one-half narrower than 

 base; in side view slightly, uniformly convex; with fine, not dense 

 punctures, shallow, becoming larger and shallower towards sides, 



