444 PROCEEDINGS OF THE NATIONAL MUSEUM. vol.48. 
Holotype. — Female, Porto Bello, Panama, November, 1913, Dr. E. 
Martini, coll. 
Allotype. — Male, topotypic. 
Type-specimen.— Cut. No. 18499, U.S.N.M. 
Tribe ERIOPTERINI. 
Genus MONGOMA Westwood. 
Mongoma yVF.STWOOD, Trans. Ent. Soe. Lond., 1881, p. 364. 
MONGOMA METATARSATA, new species. 
Cross-vein r just before the fork of ^2 + 3J wings subhyaline, stigma 
small, rounded; legs black with the base of the tibia and the tip of 
the femur narrowly wliite; tibia broadly tipped wdth white; all of 
the metatarsi black at the base, remainder of the tarsi white. 
Female. — Length, 8.4 mm.; wing, 7.3 mm. Fore leg, femur, 11.6 
mm.; tibia, 11.7 mm.; tarsus, 9.8 mm. Middle leg, femur, 11.7 mm.; 
tibia, 10.6 mm.; tarsus, 8.2 mm. Hind leg, femur, 11.3 mm,; tibia, 
11 mm.; tarsus, 7.7 mm. 
Rostrum and palpi brown. Antennae with the basal segment 
brownish, the remainder of the organ brownish black; constrictions 
between the segments of the fiagellum not very distinct. Head yel- 
lowish brown. 
Thorax didl yellowish brown w4th an indistinct median brown stripe 
behind; scutum with the lobes indistinctly brown, the median area 
paler, scutellum and postnotum brown. Pleurae brownish yellow, 
the sternum yellow. Halteres short, brown. Legs with the coxae and 
trochanters dull brown, femora brown, darkening toward the tip, the 
tip broadly white; tibiae with a basal white ring subequal in width to 
the apical femoral annulus; tip of the tibiae with the apical quarter 
white, remainder black; metatarsus with tlie basal quarter black, 
remainder of the tarsi white. Wings subhyaline, the stigmal spot 
small, dark brown; veins brown. Venation as in figure 6. 
Abdominal tergites dark brown, lateral margins of the sclerites yel- 
low, broadest on the first segment, becoming indistinct about mid- 
length of the organ; sternites brownish yellow. 
Habitat. — Panama. 
Holotype. — Female, Trinidad River, Panama, May, 1911, Aug. 
Busck, coll. 
Type-specimen.— C&t. No. 18500, U.S.N.M. 
EXPLANATION OF PLATE 24. 
Fi<?. 1. WiTig oi Peripheroptera olivine, new species. 
2. Wing of Teucholabis cockerellae, new species. 
3. Wing of T. buscH, new species. 
4. Wing of T. pleuralis Alexander. 
5. Wing of Orimarga niveitarsis, new species. 
6. Wing of Mongoma metatarsata, new species. 
7. Wing of M. leucoxena Alexander. 
