276 Mr. T. D. A. Cockerell — Descriptions and 



The wings are much darker than in 0. tristis, and there 

 are other differences. 



Nomia pattoni, Ckll. 



Fedor, Texas, Oct. 18, 1897 (Birkmann). 

 New to Texas. 



Nomia nortoni, Cresson, var. plebeia, n. var. 



? • — The three abdominal bands clear ferruginous instead 

 of green. This looks like a new species, but has the structure 

 of nortoni, and is surely only a variety. The type specimen 

 bears many mites, especially on the prothorax *. 



Hab. Fedor, Texas, June 18, 1905 (Birkmann). 



Typical N. nortoni occurs at Fedor, visiting flowers of 

 mesquite, horse-mint, Polygonum, &c, as Mr. Birkmann 

 informs me. 



Nomia maneei, sp. n. 



? . — Length about 9 mm. 



Black, with green apical tegumentary bands on abdominal 

 segments 2 to 4 ; no trace of a green band on first segment, 

 but a patch of white hair on each side, the rudiment of an 

 apical hair-band. This beautiful species has been confused 

 with N.foxii, from which it is readily separated thus : labial 

 palpi with joints 2 to 4 much longer; punctures of meso- 

 thorax well formed anteriorly; middle of scutellum with 

 sparse punctures on a shining ground, and no little punctures 

 between; wings a little darker, b. n. meeting t.-ra.; second 

 abdominal segment with smaller punctures ; third appearing 



* Disparipes texanus, sp. n. — Length 167, breadth 147 fi. Pale red, 

 shiny, anterior border of body broadly hyaline ; shape as in D. ameri- 

 canus, Banks, to which it is closely allied, but the following characters 

 are distinctive : large humeral bristles not so near the margin ; three 

 pairs of bristles on the posterior margin, the intermediate pair slender, 

 the inner longer than the intermediate (these bristles rather variable,) ; 

 two pairs of very large ventral abdominal bristles, the anterior pair more 

 laterad than the posterior; hind foot with a very long bristle in addition 

 to the shorter ones ; long subapical bristle of hind foot accompanied by a 

 shorter one ; first three pairs of legs very much more bristly than in 

 Banks's figure of D. americanus ; sternal sclerites apparently longer in 

 proportion to their breadth ; claws much more robust, especially at base, 

 and much more strongly hooked, bent to less than a right angle ; clavate 

 organs behind anterior legs large and well developed, but not setiferous 

 as figured for JJ. americanus. 



Hab. On Nomia nortoni, var. phbia, attached to the thoracic hairs ; 

 Fedor, Texas, June 18 (Birkmatm). 



