452 [J UNE 



marginal, receiving the second recurrent nervure at, or a little before 

 the middle. Legs black; anterior tarsi ciliated, the four posterior tibiae 

 and tarsi spinose. Abdomen sessile or subsessile, with a slight gloss 

 and a more or less obscure bluish or purplish reflection. Length 5J — 7 

 lines; expanse of wings 9 — 12 lines. 



Male. — Resembles the female, but is more slender, with the bluish 

 or purplish reflection more conspicuous. Length 4 — 6 lines. 



Six 9 j four % specimens. 



3. Pompilus angustatus. n. sp. 



Narrow; deep black, with a slight bluish or purplish reflection; anterior 

 margin of clypeus broadly rounded; wings blackish, subviolaceous. 



Female — Body narrow, subcompressed, deep black, with a slight 

 bluish or purplish reflection in certain lights, sparsely pubescent, im- 

 maculate ; anterior margin of the clypeus broadly rounded ; antennae 

 black, sericeous. Thorax short, gibbous; posterior margin of the pro- 

 thorax arcuate; metathorax shining, short, obtusely rounded, with a 

 slight longitudinally impressed line, the posterior margin reflexed. 

 Wings long and ample, dark fuliginous, with a more or less deep viola- 

 ceous reflection, the apical margins generally darker; second and third 

 submarginal cells nearly of equal length, slightly narrowed towards the 

 marginal, especially the third, which is rather larger than the second. 

 Legs black, sericeous, the tibiae and tarsi spinose. Abdomen rather 

 elongate, narrow, sessile, somewhat shining. Length 5 — 5} lines; 

 expanse of wings 10 — 11 lines. 



Male. — Resembles the female, with the face longer, the anterior mar- 

 gin of the clypeus subtruncate. the body more velvety and the legs less 

 spinose. 



Two $ , one % , specimens. Resembles the preceding species in color, 

 but the form is much narrower and more slender, and the wings longer. 



4. Pompilus luctuosus. n. sp. 



Deep black, shining; anterior margin of clypeus broadly concave; wings 

 fuliginous, violaceous, the apical margins darker. 



Female. — Deep black, rather shining, sometimes with a faint bluish 

 reflection, immaculate ; anterior margin of the clypeus broadly concave, 

 distinctly margined ; antennae black, sericeous; posterior margin of the 

 protborax angular; metathorax rounded above, abrupt behind. Wings 

 more or less fuliginous, with a violaceous reflection, the apical margins 

 darker, the posterior wings subhyaline at base ; second submarginal cell 

 quadrate, rather smaller than the third, receiving the first recurrent 

 nervure at or near the tip ; third submarginal slightly narrowed to- 

 wards the marginal. Legs opaque black, slightly spinose. Abdomen 



