SUBGENUS TRICHAPION — KISSINGER 301 



contiguous punctures. Prothorax one-third wider at base than 

 long, middle slightly narrower than base, apex two-thirds to three- 

 foui'ths as wide as base, sides expanded laterally at base, slightly 

 converging to middle, rounded to constricted apex; in profile dorsal 

 surface slightly convex, flattened basally and apically; punctures 

 moderate, 0.03 mm. in diameter, deep, interspaces about two-thu'ds 

 as great as diameter of punctures, flat, alutaceous, wider and flatter 

 in lateral basal third, basal fovea deep, short, rounded. Elytra at 

 humeri one-thu'd wider than base of prothorax, 2.75 to 3.00 times as 

 long as prothorax, length to width as 12:9; intervals twice as wide 

 as striae, flat, with two rows of fine punctures; striae deep, fine. 

 Scutellum elongate-triangular, about twice as long as wide, 0.12 by 

 0.06 mm,, with a shallow, median furrow. Front femora about 3.75 

 times as long as wide. Claws with moderate basal tooth. 



Special male characters: Tibiae 2 and 3 armed with small, simple 

 mucrones; tibia 1 slightly flattened on the anterior inside surface, 

 area polished with moderately close striations. 



Lectotype: Kissinger (1957) designated as lectotype of this species 

 a male specimen (USNAI 1253) labeled New Jersey. 



Material examined: Lectotype and 50 other specimens. 



Known distribution: 



United States: Alabama: Selma, Dec. 18, 1895, H. Soltau (USNM). District 

 of Columbia (USNM). Florida: Crescent City, Hubbard and Schwarz (USNM). 

 Georgia: Atlanta, Nov. 3, 1937, P. W. Fattig (USNM); Experiment, Nov. 12, 

 1936, T. L. Bissell (USNM). Maryland: Plummers Island, June 17, 1906, W. L. 

 McAtee (USNM). New Jersey (USNiM). Neio York: Ithaca (USNM), Peekskill, 

 on rhododendron flowers in July, Sherman (USNM). North Carolina: Round 

 Knob, Hubbard and Schwarz (USNM). Virginia: Alexandria, Oct. 30, 1955, 

 A. W. Vazquez; Barcroft, September 1931, J. C. Bridwell, ex seeds of Phaseolus 

 polystachys (USNM); Bull Run, ex Phaseobis polystachys (USNM); Pennington 

 Gap, Hubbard and Schwarz (USNM). 



Remarks: This species has been reared several times from the seed 

 pods of Phaseolus polystachys. Pierce (1908), Chittenden (1908), 

 Blatchley and Leng (1916), Wickham (1922), Bissell (1938), and 

 Tuttle (1954) cite various species of Phaseolus as the host plants of this 

 species. All except western records probably refer to A. griseum. 

 The records of A. griseum developing in beans of the genus Stropho- 

 styles doubtless refer to A. sayi Gyllenhal. 



Apion (Trichapion) nebraskense Fall 



Figure 7,d,e 

 Apion nebraskense Fall, Trans. Amer. Ent. Soc, vol. 25, p. 145, pi. 4, fig. 20, 1898. 



Description: Length, 1.75 mm.; width, 0.89 mm. 

 Moderately robust. Black; pubescence fine, white, sparse, a little 

 more conspicuous ventrally. Male beak shorter than head and pro- 



