722 ZOOLOGY INSECTS. 



98. NOMIA NORTONI. 



Nomia Norton!, CRESS., Trans. Am. Ent. Soc., i, 385. 



1 9 specimen; Colorado; Dr. H. C. Yarrow. 



99. NOMIA NEVADENSIS, sj>. nov. 

 PLATE XXXIV, FIGS. 3, 4. 



9 . Head and thorax black, rather densely clothed with a short ochra- 

 ceous pubescence ; three or four basal joints of antennae, and sometimes the 

 middle of face and clypeus, fulvous ; scutellum and metathorax fulvo-fer- 

 ruginous ; on sides of thorax, the pubescence is long and dense, and short 

 and dense on anterior part of mesothorax, on posterior margin, and on post- 

 scutellum ; basal space of metathorax inclosed by a well-defined carina, and 

 longitudinally rugose ; tegulse pale honey-yellow ; wings yellowish, with 

 apical margin broadly fuliginous ; legs fulvous, with dense ochraceous pu- 

 bescence ; abdomen fulvous ; apical margin of the segments depressed, pale, 

 and fringed with ochraceous pubescence ; venter fringed with long, ochra- 

 ceous pubescence. Length, 5 lines. (Trans. Am. Ent. Soc., 1875.) 



<? . Less robust, and more densely pubescent, especially on the face ; 

 posterior femora much swollen and curved ; their tibiae dilated inwardly at 

 tip, which has a stout, obtuse tooth ; the margin above rather deeply emar- 

 ginate ; middle of first and second abdominal segments deeply and trans- 

 versely excavated, the third less deeply so ; fourth and fifth segments, 

 except apical margins, black, the third sometimes tinged with black. 

 Length, 5-5 lines. (Trans. Am. Ent. Soc., 1875.) 



8 <? 9 specimens; Eastern Nevada; 1872; Dr. H. C. Yarrow. 



The pubescence is doubtless much faded from being long immersed in 



alcohol. 



100. EUNOMIA MARGINIPENNIS, sp. nov. 



9 . Entirely black or brown-black; head and abdomen shining; thorax 

 clothed with a short, dense, velvety -black or brown pubescence; legs g~en- 

 erally brown, with sericeous pubescence on tibiee; inclosed space behind 

 postscutellum coarsely rugose; metathorax coarsely punctured; wings yel- 

 lowish-hyaline, with apical margins broadly fuliginous; abdomen depressed 

 above, with little or no pubescence, finely punctured; base deeply exca- 

 vated. Length, 8 lines. 



