174 PROCEEDINGS OF THE NATIONAL MUSEUM vol. lu 



Holotype male: Rio Trinidad, Panama, Mar. 19, 1912, A. Busck 

 (USNM). 



Paratype: Barro Colorado Island, June 14, 1939, Zetek 4453, 

 lot no. 39-12571 (USNM). 



37. Auplopus niger, new species 



Figures 34, 35 



Holotype male. Body including the coxae all black, except a 

 short medium-wide white line on lower inner orbits (reaching from 

 clypeus to base of antennae) and an obscure reddish mark at outer 

 edge of clypeus; a small white spot in middle of apical tergite; all 

 trochanters, femora, and tibiae reddish yellow; all of foretarsi (except 

 apical joint, which is dark), and basal joint of mid tarsi underneath 

 reddish yellow, rest of tarsal joints dark; antennae yellow under- 

 neath, black above, the first eight joints cylindrical, the last five 

 convex below in middle concave beneath at the joints; antennae 

 slender, more so at tip; clypeus with a wide tooth (projection rather 

 in middle of apical margin, concave each side; apical margin of clypeus 

 0.7 as wide as basal, 2.3 as broad as long in middle; head not quite 

 1.1 as broad as long; ratio of lengths of third and fourth antennal 

 joints is 10:10; upper interocular distance (15) slightly greater than 

 lower (13); wings hyaline slightly cloudy, veins and stigma brown, 

 hardly yellow; parameres of genitalia rather broad, approaching the 

 broadest in the genus, a pencil of five or six long hairs near base on 

 surface on inner edge; a broad expansion near middle; volsellae broad; 

 rather heavy short setae just before apical expansion. 



Length head and thorax 3.4 mm., abdomen 3.4 mm., forewings 

 5.3 mm., rear wings 3.6 mm; length genitalia 0.80 mm., width 0.53 

 mm., length subgenital 0.93 mm., width 0.4 mm., subgenital plate 

 with the basal triangle open to the apical fourth, the ridge extending 

 from there to apex. 



Holotype male: San Jose, Costa Rica, 1928, M. Valerio 146 (USNM). 



38. Auplopus woodi, new species 



Figures 20, 21 



Holotype male. Front, vertex, and posterior orbits, black; dorsum 

 and sides of thorax to the propodemn black with a faint bluish color, 

 with shght purplish reflection; dorsum and sides of propodeum with 

 stronger bluish color and purple reflection; abdomen blackish with 

 tergites 2 to 5 with the posterior edges narrowly whitish, the last 

 tergite white; basal tergite with the sides yellowish; forecoxae all 

 yellow, midcoxae black on base, rest yellowish and posterior coxae 

 black; first two pairs trochanters yellow, posterior pair black with 



