506 ^U: T. D. A. (Jockerell — Descrt'jitions and 



Ijejond stroiij^ly infuscated ; first r. n, meeting first t.-c. ; 

 scutellum and axillee yellow ; abdomen with continuous 

 white hair-bands, very narrow on first, broad and conspicuous 

 on second segment, hardly at all developed on the others, 

 which have narrow brownish tegumentary margins. Very 

 close to P. inaculipeiinis, Smith, differing by the colour of 

 the tibiae, the thick anterior tibite black behind except at 

 l)ase and extreme apex, middle tibipc black with a yellow 

 basal spot (larger on inner size), hind tihite with about the 

 basal two-fifths yellow. Also related to P.medicana, Cress., 

 but separated by the dark apex of wings, the much longer 

 second submarginal cell, the dark middle tibia;, and the 

 white hair-bands on abdomen. The shape of the face and 

 the face-markings agree with mexicana, but the mandibles are 

 dark, not yellow as in mexicana. The sides of the clypeus 

 are not so distinctly margined with black as in maculipe.nnis. 

 Among the South American species it is close to P. paulis- 

 tana, Schrottky, but it differs especially in the basal area of 

 the metathorax, which has a median enclosure, with four or 

 five ridges, and on each side of this an enclosure with three 

 or four oblique ridges ; it also differs by the dark middle 

 tibise, and the middle of the first abdominal segment with 

 very large well-separated punctures (the second segment 

 also has large punctures, but those of the third are very 

 minute). The apical (lower) part of the metathorax is 

 ferruginous. 



Hab. Gualan, Guatemala, Feb. 18, 1912 {IV. P. Cockerel/]. 



Prosopis quadratifera, sp. n. 



^ . — Length 4 mm. 



Black, with lemon-yellow markings ; face narrow, 

 broadening above ; mandibles, labrum, clypeus, large 

 squarish snpraclypeal mark, and lateral face-marks all 

 yellow ; the lateral marks fill space between clypeus and 

 snpraclypeal mark and eye, and go upwards as a narrow 

 band along orbits to end in a point a little above level of 

 middle of front ; scape short and thick, yellow with a dark 

 patch behind ; flagellura long, submoniliform, dark coffee- 

 brown, paler beneath; upper part of head and mesothorax 

 extremely closely and finely punctured ; scutellum and 

 axillffi entirely dark ; a very slender line on prothorax and 

 greater part of tubercles yellow ; pleura dull, finely and 

 sjjarsely ])unetured ; area of metathorax feebly ridged at 

 base, its posterior margin very strongly defined, W-like, tjje 

 median angle of the W forming two sides of a square apical 

 area; tcgulic light ferruginous. AVings clear hyaline, 



