AMERICAN IIYMENOPTERA. 133 



Genus FERREOLA, St. Farg. 

 The species of this genvis are said to have the "antennfe short, 

 thickened, and gradually tapering to a point; the head narrower than 

 the tliorax ; the prothorax larger than in Pompilus, in the males near- 

 ly as long as the meso- and metathorax combined; the abdomen sessile 

 and as wide as the thorax." I have not seen any of the described 

 North ximerican species belonging to this genus. 



1. Ferreola sanguinea. 



Ferreola ."iaiif/uinea, Smith, Brit. Mus. Cat. Ilym. iii, p. ]70, J. 



'■'■ F^cmale. Length 9 lines. — Thorax and abdomen ferruginous; head, 

 antennoe, legs, and three apical segments of the abdomen, black ; the 

 scape of the antennae ferruginous beneath; wings dark fuscous, the 

 third submarginal cell narrowed towards the marginal, of the same 

 width as the second submarginal ; the legs spinose." 



//(/6.— '-Georgia." 



2. Ferreola variegata. 



Ferreola variegata, Smith, Journal of Entomology, i, p. .398, 9- 



'■'■Female. Length 5 lines. — Black; the head smooth and shining ; 

 the apex of the scape, the basal joint of the flagellum, and the tips of 

 the mandibles, rufo-piceous. Thorax : the metathorax clothed above 

 and at the sides with silvery white pubescence ; the coxa) and femora 

 beneath with a thin ashy pile; the wings subhyaline, the base of the 

 superior p:iir, a fascia in the middle, and a second and a broader one 

 crossing at the marginal cell, dark fuscous. Abdomen : the first seg- 

 ment with silvery pubescence above; the third of a pale dull ferrugi- 

 nous color ; beneath, thinly covered with ashy pile," 



ILih.—'' Mexico." 



3. Ferreola formosa. 



Ferreola formosa, Smith, Journal of Entomology, i, p. 399, 9 • 

 '■'Female. Length 7 J lines. — Black; the head above the insertion 

 of the antennae, and the pro- and mesothorax above, clothed with a rich 

 fulvo-ferruginous pubescence; the metathorax with silvery-white pu- 

 bescence, the base and apex black; the thorax beneath and the legs 

 with a silvery-white pubescenee; the tibiae and tarsi spinose; wings 

 subhyaline, mottled and clouded with smoky stains, the apex of the su- 

 perior wings pale, as well as the base of the posterior pair ; a slightly 

 yellowish subhyaline band crosses the anterior pair at the first submar- 

 ginal cell. Abdomen : the first segment, the base of the second later- 

 ally, and the entire under surface with a fine, thin, silvery-white pu- 

 bescent pile; the second and sixth segments with an obscure-purple 

 lustre, the third and fourth with a rich rufo-fulvous pubescence. 



