1 865.] 455 



Fam. SPHEGID.E. 



Genus AMMOPHILA, Kirby. 

 \. Abdomen with the petiole and first segment elongate and slender. 



] . Ammophila ferruginosa, n. sp. 



Ferruginous : disk of metathorax longitudinally black : pleura with dense 

 silvery-sericeous pile ; wings hyaline or yellowish-hyaline. 



Female. — Uniform ferruginous, shining ; the face, pleura, sides of 

 metathorax and base of legs with a dense, very fine, silvery pile ; head 

 indistinctly punctured, with a longitudinal depression behind the an- 

 tennae ; clypeus large, rather prominent, with a few large scattered 

 punctures and sometimes a central longitudinal impressed line, the an- 

 terior margin somewhat rounded, entire ; mandibles black at tips and, 

 as well as the cheeks, fringed with long whitish pubescence; the ocelli 

 enclosed by a black spot; antennae black, the three basal joints ferru- 

 ginous ; pro- and mesothorax covered with fine dense transverse striae, 

 and with a central longitudinal impressed line, deep and blackish on 

 the mesothorax, and subobsolete on the prothorax; pectus, tubercles, 

 pleura, and sides and tip of metathorax, covered with a dense sil- 

 very pile ; pleura sparsely punctured ; scutellum somewhat rugose, 

 black at base and on the sides ; metathorax obliquely striated, with a 

 more or less broad, central, longitudinal, black stripe. Wings short, 

 hyaline, more or less tinged with yellowish, the apical margins a little 

 dusky. Legs ferruginous ; the coxae silvery ; the f >ur posterior coxae 

 and femora above with a black line. Abdomen ferruginous, smooth 

 and shining; the incisure between the petiole and first segment, and 

 a spot on the apical middle of the fifth and sixth segments, black. 

 Length 8? — 9a lines; expanse of wings 8 — 91 lines. 



Four specimens. Easily recognized by the color being almost en- 

 tirely ferruginous. 



'2. Ammophila pruinosa, n. sp. 



Black, densely covered with a fine silvery-cinereous pile: most of legs and 

 abdomen ferruginous; wings hyaline. 



Female. — Black ; head, pectus, pleura, metathorax except the en- 

 closed space, and the base of the legs, densely covered with a fine sil- 

 very-cinereous pile, very brilliant in some specimens ; mandibles fer- 

 ruginous, sometimes rufo-testaceous, black at base and apex ; palpi and 

 sometimes the clypeus anteriorly, ferruginous ; the face, clypeus and 

 cheeks silvery ; antennae dull black, the basal joint more or less ferru- 

 ginous at tip ; pro- and mesothorax rather closely punctured, somewhat 

 rugose, the former clothed with a rather dense cinereous pile, the meso- 

 thorax almost naked, with a deeply impressed central lougitudinal line; 



