226 P. CAMERON. 



post-scutellum and the median segment are closely and uniformly punctured 

 throughout, densely covered with silvery pubescence and with black hair. The 

 hair on the legs is white: the spines and calcaria are black ; the coxae are cov- 

 ered with silvery pubescence. The radial cellule is long, fully two-thirds of the 

 length of the second cubital ; the basal abcissa of the 'adius is roundly curved 

 upwards ; the apical is straighter and has an oblique slope ; the second transverse 

 cubital nervure is received near the middle of the cellule, it has the upper (and 

 larger) part straight and oblique; the lower part is also oblique, but more 

 rounded; the first recurrent nervure has the upper part straight and oblique; 

 the second has the lower two-thirds broadly rounded backwards; the upper part 

 straight and oblique. Abdomen deep black, thickly covered with black hair; 

 the second and third segments are fringed at the apex and laterally with white 

 hair, the apical half of the pygidium is smooth and bare. 



Hab.— Ecuador, 1-2000 feet. 



Characteristic of this species is the elongated radial cellule pro- 

 jecting largely beyond the apex of the cubital. 



CEROPALTD^E (olim Pompilidse). 



Pepsis sulci irons sp. nov. 



Black; the head and thorax covered thickly with a bright green pile; the 

 abdomen with a bluish green pile ; the legs dark blue, their base covered with a 

 green pile; the wings fuscous, their lower basal half and a broader baud extend- 

 ing from the transverse basal nervure to the third transverse cubital through the 

 cubital cellules, fulvous-yellow ; the second and third cubital cellules are streaked 

 with fulvous in the middle. £• Length 18 mm. 



Scape of antennas thickly covered with green pubescence; the flagellum black, 

 fuscous towards the apex. Head thickly covered with bright green pubescence 

 and sparsely with long black hair; the front has a wide and deep furrow down 

 the centre from the ocelli to the base of the antennae. Clypeus transverse at the 

 apex ; the labrum is large, broadly rounded in front. Mandibles and palpi black ; 

 the former covered with green pubescence at the base; their apical tooth is long 

 and bluntly rounded at the apex. Metanotum irregularly transversely striated, 

 the striae extending on to the upper half of the rnetapleurae ; the apex has a 

 straight oblique slope. The yellowish cloud in the fore wings occupies the lower 

 edge of the radial, of the first cubital, the whole of the second and third cubital, 

 except for fuscous streaks in the centre, the greater part of the discoidals and of 

 the submedian and anal cellules; in the first discoidal is an elongated fuscous 

 cloud with a hook-shaped projection at the base. The second cubital cellule is 

 distinctly longer than the third. 



Hub.— Nanegal, 3-4000 feet. 



Pepsis andicola sp. nov. 



Black, densely covered with a purple pile; the flagellum of the antennas dull 

 black ; the wings fiery-red ; the base of the anterior narrowly at the base and 

 the basal half of the posterior, black ; the apices of both narrowly fuscous. 9 • 

 Length 33 mm. 



The head is moderately thickly covered with long black hair ; the frontal fur- 



