1897.] NATURAL SCIENCES OF PHILADELPHIA. 243 



hairs ; face and clypeus with cinereous pile, the clypeus incurved 

 medially ; front shining, obscurely punctured ; space between eyes 

 at top less than length of first joint of flagellum ; space between 

 hind ocelli about equal to that between them and the eyes, the latter 

 distinctly converging above ; antennae slender, acuminate, the first 

 joint of flagellum nearly one-third longer than the second ; prono- 

 tum angulate behind ; middle segment rounded, with a faint im- 

 pressed line down middle ; legs exceedingly spinose, calcaria long, 

 reddish ; the inner spur of hind tibise nearly two-thirds as long as 

 the first hind tarsal joint, fore tarsal comb poorly developed in con- 

 sequence of its spines being widely separated ; claws with a sharp 

 medial tooth ; abdomen elongate-ovate ; wings fuscous, with purple 

 reflections, hind pair paler, third submarginal larger than second, 

 at top nearly three times greater than corresponding portion of sec- 

 ond basal vein, and cubital vein of hind wings interstitial ; head 

 with rather prominent long hairs, the thorax with them sparser. 

 Length 15. 



Rio de Janeiro (November). A specimen from same locality 

 (July), measures 13 mm. is blacker, and the second and third sub- 

 marginal cells differently shaped (see fig. 3). A variety or dimor- 

 phic form, perhaps. 



This species evidently belongs to Kohl's Group 1. 



Pompilus mundulus n. sp. 



9 . — Steel blue ; antennse and tarsi black, with cinereous pile, 

 especially dense on clypeus, coxse beneath and middle segment ; head 

 broader than thorax, with sparse, long, black hairs; eyes reaching 

 mandibles, not converging, space between them at the top less than 

 the length of first flagellum joint, space between hind ocelli dis- 

 tinctly less than that between them and eyes : clypeus large, fore 

 margin sub-rounded; front with impressed line; antennse fairly 

 slender, the first joint of flagellum more than one-third longer than 

 second; pronotum angulate posteriorly ; middle segment rounded, 

 not impressed; legs fairly spinose, inner spur of hind tibia? more 

 than half but less than two-thirds as long as first hind tarsal joint, 

 tarsal comb wanting ; claws with a sharp medial tooth ; abdomen 

 ovate, about as long as thorax, last segment with long, stiff hairs ; 

 wings fuscous, with reddish-purple reflection, second submarginal 

 nearly quadrate, but little narrowed above, third submarginal nar- 

 rowed more than one-half at top, its width at this point about one- 



