1865.] 99 



vous at base, the first seuinent has a more or less broad yellow band, 

 soiuctinies widely, soiuetinies narrowly, interrupted in the middle ; the 

 band on the second segment is entire; the remaininjr segments have 

 the fascicG similar to those in the i ;male, and the sixth segment has 

 also a narrow fascia on its apical margin ; the venter is more or less 

 tinged with piceous, immaculate. Length same as 9 • 



IJuh. — Pennsylvania (Cresson) ; Delaware (Dr. Wilson) ; Illinois 

 (Walsh and Kennicott) ; Rocky Mountains (Ridings); "North Caro- 

 lina and East Florida" (Smith). Coll. Ent. Soc. Philad. and Chicago 

 Academy of Sciences. 



Seven $ . six S specimens. 



13. Philanthus frontalis, n. sp. 



Black ; face above and below antenna, base of antennae, collar, tubercles and 

 a mark behind, tegulse, postscutellum, tibiseand tarsi, and uninterrupted fasciae 

 on abdomen, yellow ; wings fulvo-fuscous : base of legs fulvous. 



Malr. — Deep black, opaque, very densely and deeply punctured, 

 slightly pubescent; head transversely ovate, prominent on the front ; 

 the face beneath the antennae connected with a very lai-ge transverse 

 mark above the antennas, occupying nearly the entire front, clypeus, 

 spot on mandibles, and a spot or dot on each side of the occiput, bright 

 lemon-yellow ; antennae shaped and colored as in P. venfilabrifi. Tho- 

 rax : mesothorax with several longitudinal impressed lines, sometimes 

 obsolete ; collar, tubercles, and a large elongate spot behind, tegulae, 

 and the postscutellum, lemon-yellow; metathorax more densely and 

 finely sculptured, abruptly truncate behind. Wings pale fulvo-hyaline, 

 darker and subviolaceous at tips ; nervures fuscous, stigma and costa 

 honey-yellow, paler anteriorly. Legs yellow; coxae, trochanters, and 

 femora, except tips more or less, honey-yellow ; tibieC sometimes dusky 

 beneath. Abdomen elongate, the sides parallel, with close, very deep 

 and coarse punctures, much coarser than those of the thorax ; the two 

 basal segments each with a broad, continuous, lemon-yellow band, that 

 on the first situated on the middle, that on the second at base, the lat- 

 ter sometimes emarginated on each side of the middle posteriorly ; four 

 following segments each with a narrow apical yellow fascia, more or 

 less uneven anteriorly and each gradually narrower than the other; 

 apical segment immaculate, rounded at tip ; venter black, shining; 

 finely punctured, the segments with an obscure brownish stain on their 

 apical middle. J>ength 5] — 6] lines; expanse of wings 9 — 10 lines. 



Hub. — Rocky Moun.. Colorado Ter. (Ridings.) Coll. Ent. Soc. Phila. 



Four % specimens; 9 unknown. Closely allied to the preceding spe- 

 cies, and may possibly be a variety of it. 



