72() ZOOLOGY— INSECTS. 



the narrow apical margin of all the segments, ferruginous ; apex densely 

 clothed with fuscous pubescence, having a silvery reflection in certain 

 lights ; venter ferruginous, more or less varied with yellowish Length, 

 6-7 lines. 



9 specimens ; Colorado ; Dr. H. C. Yarrow. 



114. CCELIOXYS DUBITATA. 

 Ccelioxys dubitata, Smith, Brit. Mas. Cat. Ilvm., ii, 2712. 



1 9 specimen; New Mexico; W. Gr. Shedd. 



115. MELECTA THORACICA, sp. nov. 

 Plate XXXIII, Fig. 5. 

 9 . — Deep black ; occiput, thorax above, and first abdominal segment 

 above, clothed with a dense ochraceous pubescence ; wings fuscous. Length, 

 G\ lines. 



1 specimen; Eastern Nevada ; 1872; Dr. II. C. Yarrow. 



110. EPEOLUS REMIGATUS. 

 Mclecta remigata, Fabr., Syst. Piez., 387. 



7 $ 9 specimens; Eastern Nevada; 1872: Colorado, New Mexico ; 

 Dr. II. C. Yarrow, Dr. Oscar Loew. 



117. MEL1SSODES OBLIQUA. 

 Macrocerq t>l>li<in<<, SAY, Bost. Jour. Nat. Hist., i, 403. 



14 r? 9 specimens; Eastern Nevada; L872 : Colorado, New Mexico; 

 Dr. 11. C. Yarrow, Dr. Oscar Loew, Wm. 11. Ilance. 



118. MELISSODES COMANCHE. 

 Melissodc.? Comanche, Cress., Trans. Am. Ent. Soc, iv, 270. 



2 9 specimens; Colorado, New Mexico; Dr. II. ( '. Yarrow. 



119. MELISSODES NEVADENSIS, sp. nor. 

 Plate XXXIV, Fig. <i. 



i . — Black; densely clothed with a long ochraceotis pubescence; cly- 

 peus, labrum, and spot on base of mandibles white ; mandibles with pale- 

 fulvous stripe to tips ; antenna? reaching beyond metathorax, black; scape 

 densely pubescent ; the pubescence on legs more yellowish, shading into 



