AMERICAN HYMENOPTERA. 377 



a subobsolete, narrow, yellowish stripe near the tip, sub-interrupted in 

 the middle ', apical margins of all the segments with a dense, rather 

 long fringe of yellowish hairs; venter dull ferruginous, the third seg- 

 ment black at base. Length 6 lines. 



One 9 specimen. At first sight this species has much the appear- 

 ance of IJlis Xantiana Sauss. 



6. Scolia (Discolia) flavocostalis, n. sp. 



Male. — Black, deeply and rather closely punctured, clothed with 

 long, golden pubescence ; a spot on the anterior orbits, below the emar- 

 gination of the eyes, and a narrow line on lower half of posterior orbits, 

 yellow; mandibles bright fulvous, black at tips; antennae entirely 

 black, robust; a spot on each side of prothorax anteriorly and another 

 on postscutellum, yellow; scutellum with large, scattered punctures; 

 tegula; fulvous; wings hyaline, with an opaline reflection, costa broad- 

 ly yellow to the tip of marginal cell, beyond which it is violaceous- 

 black ; anterior wing with two submarginal cells, the second receiving 

 one recurrent nervure; legs rufo-ferruginous, clothed with yellowish 

 hair, most of coxa3 black ; abdomen black, clothed with yellowish hair, 

 especially dense on the apical margins of the segments, apex of the 

 three basal segments more or less ferruginous; on each side of second 

 and third segments above a yellow ovate spot, large and transverse on 

 the third segment; fourth segment with a narrow, apical, yellow band, 

 interrupted in the middle, and dilated laterally; apex with three short 

 spines; venter blackish, most of the second segment ferruginous. 

 Length 4 J lines. 



One % specimen. This may be the S of >S^. Lewisil. It is however 

 much smaller. 



7. Elis (Trielis) Xantiana, Sauss.* 



Elis Xantiana, Sauss., Ann. Soc. Ent. Fr. 4e ser iii, p. 18, '^ 9; Cat. Spec 



Gen. Scolia, p. 149, pi. 1, fig. 10 9,11 %. 

 Scolia regina, Cresson, 1. c, p. 447, 9 • 

 ? Scol ia flavoftignata, Cresson, 1. c, p. 449, % . 

 Two 9 specimens. 



* Since the publication of the 2d Part of my Paper on the Hymenoptera of 

 Colorado Territory {Proc. Ent. Soc. Phil, iv, p. 426, 1865,) I have seen Dr. de 

 Saussure's Paper, entitled " Sur quelques Scolies de Basse- Calif or nie" {Ann. Soc. 

 Ent. Fr. 4e scr. iii, p. IS, 1863) ; in which he describes several species apparently 

 identical with specimens from Colorado and New Mexico. The identity of his 

 Elis Xantiana 9 with my Scolia regina 9 . is decided by a specimen kindly 

 communicated to me by Mr. Norton, who has also sent me a specimen, describ- 

 ed by the same author as the '^of Xantiana, and which is identical with a spe- 

 cies from Colorado described by me b,s fiavosignata. I had been led to suppose, 



TRANS. AMER. ENT. SOC. (48) FEBRUARY, 1868. 



