442 PROCEEDINGS OF THE NATIONAL MUSEUM. vol.59. 



Head broader than thorax, seen from in front longer than wide, 

 facial and transfacial lines equal, interocular space 0.42 transfacial 

 and area 0.6 as broad as high, malar space 0.3 eye and with groove, 

 eyes bare, antennae arising above middle of eyes, 13-segmented, 3 

 equal to 1 plus 2 and 0.56 length of 4, 5 and 6 equal and slightly 

 shorter than 4, gradually shorter to 12 which is 1.6 times as long as 

 broad, last 1.2 times preceding, gradually stouter from about 9 with- 

 out distinct club. Pronotum truncate, truncation 0.39 width of 

 head and emarginate above. Mesoscutum longer than broad, 

 parapsides represented by a few setigeous punctures. Scutellum 

 0.83 length of mesoscutum, cup extending back slightly over half- 

 way. Cup one-third width of disk and narrowed in front into a 

 low septum between the two deep smooth pits. Surface of cup 

 bears usual pit near hind margin with a slight elevation and a few 

 punctures in front of it. Disk rugose or reticulate, tapering behind 

 into a blunt horizontal spine. Carinae on propodeum angled in 

 middle, inclosed space longer than broad. Mesopleura separated 

 from abdomen by a distinct carina, another finer one about one- 

 third way up. Fore wings hyaline, radial cell closed, 3.3 times as long 

 as broad and cell to wing ratio 1 :4.6, first abscissa of radius shorter 

 than second, no areolet, pubescent and ciliate, extending beyond 

 abdomen. Abdomen normally compressed, longer than broad, 

 second tergite occupying whole length, hairy ring at base. 



Length, 1.9 mm. Wing, 2.05 mm. Antenna, 1.9 mm. Abdo- 

 men, 0.9 mm. 



Described from one specimen. Ashmead stated that the male has 

 15-segmented antennae. There were once in the collection two 

 other specimens now lost from the tags and one or both of these may 

 have been males. 



Type.— Cat. No. 23647, U.S.N.M. Type female on tag and parts 

 on slide. 7 



Type locality. — Brazil: Chapada. Collected by H. H. Smith in 

 August. 



Genus TRISSODONTASPIS Ashmead. 



Trissodontaspis Ashmead, Proc. Ent. Soc. Wash., vol. 5, 1903, p. 222; Psyche, vol. 

 10, 1903, pp. 65, 71. — Dalla Torre and Kieffer, Das Tierreich, Lief. 24, 1910, 

 pp. 102, 891.— Rohwer and Fagan, Proc. U. S. Nat. Mus., vol. 53, 1917, p. 377. 



Genotype. — Trissodontaspis rufipes Ashmead. Monobasic. 



Head broader than thorax, cheeks not margined, antennae fili- 

 form, flagellar segments all long-cylindrical, third smooth, slightly 

 curved and shorter than fourth. Truncation of pronotum deeply 

 emarginate above making two triangular teeth. Mesoscutum with- 

 out parapsides or carinae and like head and axillae polished. Scutel- 

 lum with prominent median carina which is dilated posteriorly into 

 a narrow cup whose distal portion including the pit is vertical — 



i After drawing was completed the body was unfortunately lost from tag. 



