10 PROCEEDINGS OF THE NATIONAL MUSEUM vol. 123 



Harmstonia setosa, new species 



Figure 9 



Male. — Length 1.21 mm; wing 1.21 mm by 0.50 mm. Front gray; 

 antennal segment 3 short, rather truncate, rounded and slightly pro- 

 duced below. Trochanters, tibiae, and all but tips of basitarsi yel- 

 lowish, legs otherwise brown; middle femur with preapical; hind femur 

 with many close-set long setae along distal half of posteroventral 

 surface; foretibia with two to three slender anterodorsals, middle tibia 

 with a large anterodorsal and a large posterodorsal near basal third, 

 hind tibia with 5 prominent posterodorsals, tibiae without distinct 

 apicals; lengths of segments of foretarsus from base as .18-. 09-. 07- 

 .05-. 05 mm; middle tarsus as .21-.09-.07-.05-.06 mm; hind tarsus as 

 .15-.18-.12-.07-.07 mm. Tips of wing veins 2 and 3 are 1% times as 

 far apart as tips of veins 3 and 4, vein 3 curved slightly backward to 

 become nearly parallel with vein 4 distally; crossvein slightly longer 

 than last of vein 5; knob of halter blackish. Hypopygium (fig. 9) 

 ca. .36 mm long; hypopygial lamella oval from a tapered base, pale 

 and nearly hyaline, surface glabrous, outer margin bearing a fringe 

 of long setae, cucullate tip of lamella bearing a large falcate appendage 

 toward inside. 



Female. — Face bearing three to four setae, upper 1 or 2 usually 

 smaller; hind femur without distinct setae posteroventrally. 



Type-data. — Holotype cf from Mexico: Hidalgo, near Chapulhua- 

 can, on wet rock face above roadside spring, Aug. 5, 1962, H. Robinson 

 (USNM 69436). Allotype 9: same locality, Aug. 13, 1962. Para- 

 types: same locality as holotype, Aug. 5, 13, 1962, 10 c? and 8 9; 

 San Luis Potosi, a few km south of Tamazunchale, on moist lime- 

 stone in small ravine, Aug. 4, 1962, 1 cf ; all collected by H. Robinson. 



Harmstonia costaricensis, new species 



Figure 10 



Male. — Length 1.00 mm; wing 1.25 mm by 0.49 mm. Front 

 brownish gray; antennal segment 3 short, obliquely truncate with 

 lower corner projecting. Tarsi from tip of basitarsi brownish, femora 

 and bases of coxae slightly infuscated, legs otherwise yellowish; 

 middle and hind femora with preapical, hind femur with sparse longer 

 setae along posteroventral surface; foretibia with four black antero- 

 dorsals, middle tibia with a large anterodorsal and a large postero- 

 dorsal near basal third, hind tibia with two to six weak posterodorsals; 

 lengths of segments of foretarsus from base as .17-.06-.05-.04-.05 

 mm; middle tarsus a .19-.08-.06-.04-.06 mm; hind tarsus as .13-.14- 

 .08-. 06-. 07 mm. Tips of wing veins 2 and 3 are \)i times as far apart 

 as tips of veins 3 and 4, veins 2 and 4 essentially straight, vein 3 slightly 



