no. 3G15 HARMSTONIA — ROBINSON 1 1 



curved and becoming nearly parallel with vein 4 distally; cross vein as 

 long as last of vein 5; knob of halter black. Hypopygium (fig. 10) ca. 

 .32 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. — Unknown. 



Type-data. — Holotype cf from Costa Rica: La Suiza de Turrialba, 

 July 1922, Pablo Schild (USNM 69437). Paratypes: same data as 

 holotype, 3 cf ; all in A. L. Melander Collection in USNM. 



Notes. — H. costaricensis is very closely related to H. setosa of 

 Mexico; nevertheless, there are slight but consistent differences in the 

 form of the hypopygial lamella and in the pubescence of the hind 

 femur. There also seem to be slight differences in the form of the 

 third antennal segment. The legs of H. costaricensis seem rather pale 

 but this may be partly due to the age of the specimens. 



Harmstonia ornata, new species 



Figure 11 



Male. — Length 1.17 mm; wing 1.37 mm by 0.49 mm. Front 

 grayish; antennal segment 3 short, rather truncate, rounded and 

 slightly produced below. Trochanters, knees, and basitarsi except 

 tips yellow, legs otherwise brownish to blackish; middle and hind 

 femora with a small preapical, without noticeable distinct ventral 

 setae; foretibia with five or more slender anterodorsals, middle tibia 

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

 hind tibia with six or more slender posterodorsals, tibiae without 

 distinct apicals; lengths of segments of foretarsus from base as .17- 

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

 tarsus as .15-.19-.11-.06-.08 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 

 as long as to slightly longer than last of vein 5 ; knob of halter yellow, 

 stalk infuscated. Hypopygium (fig. 11) ca. .32 mm long; hypopygial 

 lamella elliptical from a tapered base, pale brownish, in part nearly 

 hyaline, surface glabrous, outer margin bearing a few prominent 

 setae along distal part, most basal of these setae very long and thick- 

 ened toward the tip, cucullate tip of lamella bearing a small included 

 appendage. 



Female. — Face bearing usually three, more rarely up to five, small 

 setae. 



Type-data. — Holotype cf and allotype 9 from Mexico: Guerrero, 

 May 29, 1963, H. Robinson (USNM 69438). Paratypes: same data 

 as holotype, 6 cf and 3 9. 



