no. 3615 HARMSTONIA — ROBINSON 13 



Note. — H. recta is distinct from all other known species of the 

 genus by having two rather than single anterodorsals on the middle 

 tib'ae. 



Harmstonia pubescens, new species 



Figure 13 



Male. — Length 1.30 mm; wing 1.80 mm by 0.33 mm. Face 

 distinct to mouth, broadest of genus; front slightly brownish gray; 

 antennal segment 3 very short, truncate. Tarsi from tips of basitarsi 

 brownish, legs including coxae otherwise yellow; middle and hind 

 femora with a preapical and with series of somewhat longer setae 

 along anteroventral surfaces; foretibia with four to five stout black 

 anterodorsals and a small apical ventrally, middle tibia with a large 

 anterodorsal near middle and a large posterodorsal near basal third, 

 two rather large apicals ventrally, hind tibia with an anterodorsal 

 near tip, six stout black posterodorsals, two distinct ventrals at 

 apex; lengths of segments of foretarsus from base as .15-.09-.07-.05- 

 .07 mm; middle tarsus as .19-.13-.08-.06-.08 mm; hind tarsus as 

 .15-.23-.13-.11-.08 mm. Tips of whig veins 2 and 3 are \}{ times as 

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

 to become nearly parallel with vem 4 distally; crossvein 1% times as 

 long as last of vein 5; knob of halter yellow. Hypopygium (fig. 13) 

 ca. .32 mm long; hypopygial lamella very large, rather rounded, pale 

 yellowish, in part nearly hyaline, bearing small hairs along the margin 

 and on the surface. 



Female. — Unknown. 



Type-data. — Holotype d" from Mexico: Chiapas, about 10 km 

 southwest of Pichucalco, small roadside waterfall, on petiole of dead 

 leaf on wet ledge, May 24, 1963, H. Robinson (USNM 69440). 

 Paratypes : same data as holotype, 6 c? . 



Notes. — Though closely related to H. recta, H. pubescens can be 

 distinguished easily by the lack of a straight abdomen, by the larger 

 rounded hypopygial lamellae, and by the generally yellower legs, 

 in addition to having only the single anterodorsal on the middle 

 tibia. 



I consider that H. recta and H. pubescens represent a very distinct 

 group within the genus. The setae of the tibiae and the broad 

 hypopygial lamellae indicate relationship with Group II but details 

 of structure of the hypopygial lamellae are very different. The 

 lamellar structure of the Group III species does not suggest homology 

 with the bulbous basal part of the H. intricata lamella. 



All the specimens of H. pubescens were collected from the same 



