468 PROCEE/DINGS OF THE NATIONAL MUSEUM vol.94 



Body and legs with all hairs noticeably long. Wings as throughout 

 the genus but with marginal fringe exceptionally long, especially 

 toward base. 



Terminalia (figs. 112-114) with basal apodeme of tenth tergite 

 (10) acute, extended on right side beneath almost entire ninth tergite 

 (9) ; left tergal process (10 LP) (fig. 114) broadly attached basally, 

 very gradually narrowed distad, somewhat parallel-sided, inner apical 

 angle abrubtly expanded, acutely rounded, deeply, divergently fur- 

 rowed dorsal] y, apex of process complex and thick (dorsoventrally) ; 

 right tergal process (10 RPi) with a prominent, vertical, naked 

 nodule at inner basal angle, suface of 10 KP2 sparsely echinulate, en- 

 tire process somewhat swollen and (before preparation) strongly 

 curved ventrad, apex sclerotic, golden, curled downward at tip, pointed. 

 Hypandrium (H) weakly sclerotized, its process (HP) especially 

 so, nearly membranous across base, subobsolete; left apical angle 

 stronger, with a fingerlike projection pointed toward LCB. LPPT 

 fused to H basally, elongate, greatly twisted distad. Left cercus- 

 basipodite (LCB) sclerotic, with a single wrinkled, fingerlike, inner 

 projection pointed dorsad, this terminating in a pair of claws; ventral 

 margin with an acute, sclerotic lobe (probably homologous to that of 

 DUohoc. rc(i) covered with minute ecbinulatioiis. Basal segment of 

 left cercus (LCi) submembranous except along inner margin, apex 

 swollen; basal segment of right cercus cylindrical, well sclerotized, 

 basal foramen slightly irregular and more heavily sclerotized: termi- 

 nal segments of both cerci normal, similar. Botli cerci are longer 

 than those of most species. 



Female. — Unknown. 



Holotype. — Male, on slide, deposited in the Museum of Com{)nr;i- 

 tive Zoology, from Valle Nueva, near Constanza, Dominican Republic, 

 7,000 feet, August 1938 (P. J. Darlington) (MCZ). 



Remarks. — This species, which can be separated at once from -AX 

 known species by the peculiar shape of the left tergal ])rocess (10 LP), 

 is named for the collector. 



OLIGEMBIA (OLIGEMBIA) BICOLOR, ncv species 

 FlQUEES 108-110 



Male. — Color (in alcohol): Head black; pterothorax, foretibiae, 

 mid and hind femora, and abdomen mahogany brown ; prothorax and 

 remainder of forelegs yellowish orange ; basal half of antennae, mid- 

 tibiae and hindtibiae, tarsi, and terminal segments of cerci straw yel- 

 low. Length 5.1 mm.; forewing length 3.0 mm., breadth 0.9 mm. 



Head (fig. 108) circular, almost as broad as long; eyes small, separ- 



