6 PROCEEDINGS OF THE NATIONAL MUSEUM vol. 124 



Distal segment of palpus six times length of proximal. Minute hairs 

 and sensoria on palpus and antennal segments iii-vii. Four ocelli 

 visible on inner rim of eye from dorsal view. 



Metathorax: With anterior margin of prescutum rounded, about 

 twice width of scutal tips and projecting beyond them; scutellum not 

 well defined, but apparently about equal in length to prescutum; 

 postlumbium an ovoid band; postscutellum tapered to rounded tip 

 and about two-thirds length of anterior metathoracic sclerites. 



Hindwing: With 6 main veins; R very strong with slight apical 

 furca; 2 detached veins below R, anterior one with strong furca; 

 Mj over one-half as long as M 2 ; Cu and single A present. 



Hindleg: With robust femur about same length but twice as broad 

 as tapered tibia. Four-segmented tarsus. 



Aedeagus: Narrowing to one-half the thickness of base before reach- 

 ing apical tip, which is sharply hooked on dorsal side and has small 

 crestlike ventral projection. Underside slightly dished. 



Abdominal segment x : Practially square. 



Female, larva, and host unknown. 



Holotype male: Suakoko, Liberia, light trap, February 1952, 

 Blickenstaff, USNM type no. 69563. 



Discussion: M. mano can be distinguished from M. liberiensis by 

 venation, particularly by the strong R with a detectable furca and 

 by the proportion of M x to M 2 . The apical hook of the aedeagus is 

 much more acute and the ventral side is dished. The metathoracic 

 divisions also differ. 



This species is named for the Liberian tribe that lives just north of 

 Suakoko. 



Myrmccolax parva, new species 



Figures 20-27 



Male: Body dark brown, 1.45 mm long and 0.43 mm between 

 wings; median breadth of hindwing 1.4 mm and expanse 3.2 mm. 

 These measurements are an average of the specimens examined, in 

 which body length ranged from 1.35 mm to 1.6 mm. 



Head: Antenna with segment iv quite clear; flabellum in reaches 

 slightly beyond tip of vi; length ratio of vi to vn is 7:10. Mouthparts 

 with long, slender mandibles crossing each other in buccal cavity and 

 about one-half as long as distal segment of maxillary palpus; distal 

 segment of palpus thick and four times length of proximal. About 4 

 ocelli seen on inner rim of eye from dorsal view. 



Metathorax: Prescutum with rounded anterior margin, posterior 

 without well-defined suture and scuti not well separated; scutellum 

 basically triangular with rounded apex; postlumbium wide and semi- 

 lunar; postscutellum with rounded posterior tip and about as long as 

 anterior metathoracic sclerites. 



