466 PROCEEDINGS OF THE NATIONAL MUSEUM vol. ii4 



Tentatively then, the genus Mortoniella differs from Mexitrichia in 

 that: Cui in the hindwing is forked; in the male genitalia the tenth 

 tergum is elongate, the ventral smi-face of the aedeagus is often 

 sclerotized in the form of paired processes, and there are comparatively 

 simple basoventral processes; in the larvae there are only 2 pairs of 

 accessory teeth on the anal claw, and the seta on the tarsal claw is a 

 short, broad, thmiiblike process; and in the pupa the distal tooth on 

 the inner margin of the mandibles is long and arises far from the apex. 



Mortoniella bilineata Uliner 



Figure 5,a 



Mortoniella bilineata Ulmer, Notes Leyden Mus., vol. 28, pp. 97-98, 1908. 



A figure of the lateral aspect of the male genitalia is given from a 

 cleared specimen to supplement the figm-es of Ulmer. The only 

 difference to be noted is in the tenth tergum which Ulmer shows to 

 be slightly longer and slightly different in shape. Otherwise the 

 genitalia, venation, and coloration are an excellent match with the 

 original description. 



Material. — Ecuador: Huigra, 4500 ft., June 13, 1914, 1 cf, 

 Parish (CU). 



Mortoniella apiciilata, new species 



Figures 5,h-d; 6; 7,a-e 



This species is closely related to angulata from which it differs 

 most conspicuously in the expanded apex of the dorsal process of the 

 aedeagus and in the greater proportionate length of the genital capsule. 



Adult. — Length of forewing 5 mm., length of body 4.5 mm. 

 Wings of specimens in alcohol brown, with a pale streak in membrane 

 at anastomosis; venation as shown (fig. 5,c). Male genitalia (fig. 5,6): 

 Ninth segment almost quadrate in lateral view, very oblique; tenth 

 segment with an elevated basomesal area, extending about half length 

 of lateral arms which are separated by a deep narrow mesal incision 

 (fig. 5,d); dorsal process of aedeagus angulate dorsally shortly before 

 apex, apex widened into a thin triangular structure; lateral processes 

 of aedeagus simple, slightly angulate rods extending about two- 

 thirds the length of dorsal process; ventrally to aedeagus a pair of 

 short rods basally and 2 paired processes near midlength, ventralmost 

 pair longer than dorsal pair; venter of aedeagus sclerotized in form 

 of paired spatulate process. 



Holotype cf , allotype, paratype 9: Ecuador: 1 mile east of Papal- 

 lacta, Jan. 29, 1958, R. W. Hodges (USNM Type 66018). Additional 

 paratypes: Ecuador: 6 cf , 4 9 pharate adults, Rio Papallacta, 1 mile 

 east of Papallacta, Jan. 30, 1958, R. W. Hodges; 1 cf, 1 9 pharate 



