1865.] 457 



I. Ammophila varipes, n. Bp. 



Black ; tegulfe, four anterior legs except base, and the abdomen except base 

 and apex, rufous ; wings subh valine. 



Female. — Black; head and thorax clothed with cinereous pubescence, 

 dense on the face, tubercles, posterior margin of pleura and sides of 

 metathorax ; mandibles and antennae entirely black. Thorax rather 

 closely punctured ; metathorax with the enclosed space rugose on the 

 middle and obliquely aciculate on the sides ; tegulfe ferruginous. 

 Wings subhyaline. slightly tinged with honey-yellow, the apical mar- 

 gins pale fuliginous, with a faint violaceous reflection ; nervures fuscous, 

 honey-yellow at base and along the costa. Legs slightly pruinose, the 

 two anterior pairs ferruginous, black at base ; the posterior pair en- 

 tirely black, except the base of the tibiae which is obscure ferruginous. 

 Abdomen ferruginous; the petiole, and the fourth and fifth segments 

 above, black. Length 9i lines; expanse of wings 11 lines. 



Male. — Resembles the female, but rather more slender; the face 

 narrower and densely clothed with silvery-cinereous pubescence ; the 

 clypeus emarginate, and the thorax more densely pubescent; the petiole, 

 the first segment of the abdomen above, and the fourth and following 

 segments above are more or less black ; the posterior margin of the 

 third segment is sometimes black, and the ferruginous color of the ab- 

 domen is often tinged with yellowish. Length HI — 9} lines; expanse 

 of wings 9 — 10-' lines. 



One 9 ? ten S specimens. 



.». Ammophila extremitata, n. sp. 



Deep black ; abdomen, except petiole and spot on apical segments, yellowish- 

 ferruginous; wings fusco-h valine. 



Female. — Deep opaque black, glabrous, the face and cheeks with 

 sparse black pubescence; clypeus flattened, shining, with a few scat- 

 tered punctures, the anterior margin broadly rounded, the face rather 

 deeply excavated about the insertion of the antennae; antennae and 

 mandibles entirely black. Thorax finely shagreened and with scattered 

 punctures ; prothorax slightly notched above, the mesothorax with a 

 central longitudinal impressed line and a lateral depression ; metatho- 

 rax opaque, densely covered with fine oblique striae ; tegulae piceous. 

 Wings vary from subhyaline to fuliginous, but generally fusco-hyaline ; 

 apical margins darker ; sometimes the wings have a yellowish tinge. 

 Legs black, slightly pruinose, with scattered black pubescence ; tarsi 

 more or less piceous. Abdomen shining, yellowish-ferruginous ; a large 

 black blotch on the apex above, and generally the petiole is more or less 

 blackish or piceous. Length 6| — 9 lines ; expanse of wings 8 — 10 lines. 



