^2 .l/vr(>M lliiinioit Sici'iik 



raihcr stiiMii^lv aiul ooarsoly ininotiiriHl (tinoly ami woakly so in 

 biscto.wi) aiul tlio apox o\ the hiiul tihiao with several small 

 straijiiu dark sotao (two stout ovirvcii otios ii\ hisctosa) ; all throe 

 arc. lunvovor. closely related, haviui^- the outer margin of the 

 hind tihiae strongly tul>ereulate. joint ^^ of aiitemiae from two- 

 thirvls to three- fourths as long as 4. the tihial spurs pale and 

 simple, etc. .V. nihrica rrinaneher, as determined by C'oekerell. 

 ditVers in lari^er si/e. smooth hind tibiae, three or four small dark 

 bristles at apex oi hind tibiae, strongly punctured elypeus. hair on 

 iimer side oi hind basitarsi golden, etc. In the tibial setae 

 hisctosii resen\bles .V. intrijcrriiiuj IX T.. the type oi the subgenus 

 Phoi\ but that sjieeies has the third antemial joint longer and the 

 abdotnen distinctly macnlateil with whitish. The largely bright 

 red color, immacidate abilomcn. tinel\ and rather sparsely and 

 weakly pnnctureil clypeus. two cm\ed black setae on hind tibiae, 

 pale hairs of scape, etc.. atVord. excellent specitic criteria for 

 -V. bist'tosii. 



Nomada (Nomada) nigiociliata 11. .<p. 



5. Length S.5 111111. Uriglit \\\\: tlio tiiL-^ oi the nKuulil'lo.-^. ;i larj;o .><uli- 

 oval facial spot lyinji' mostly above the love! of insertion of antoiinao and 

 coniiootiuiy above with a nearly oqvially largo spot surrounding ocelli while 

 boknv extending narrowly downward in the clypoal sutures and isolating 

 the supraclypcus as a red spot, the cheeks behind, the prothorax except 

 collar and tubercles, a l>road nuHlian inesoscutal line, depressed areas at 

 sides of niesoscutelluni, niotanotuin. spots on sides of tnesostennun. nieta- 

 pleura. propodeum oxcopt tor two iMoad red stripes or areas on either 

 siile of the middle, bases oi anterior coxae, whole of middle coxae, bases 

 and posterior sides of hind coxae, bases of middle and hind trochanters 

 and femora, especially the hind femora, and a prominent trident-shaped 

 mark on extreme base of abdomen, black. Head transversely oval, 

 unusually broad. Antemiae wholly bright red. joint ,? at least tive-sevenths 

 as long as 4. Clypeus coarsely but very shallowly punctured, vertex and 

 mesoscutum strongly and closely punctured. Legs, except as above 

 mentioned, bright reil. the himl basitarsi with golden hair within, the apex 

 of hind tibiae with a row oi tliroe small straight black setae. Tibial 

 spurs yellow, simple. Abdomen inuuaculate red, tergites 3-5 somewhat 

 diffusely infuscated medio-apically, tergite t impunctate and shining, 2 

 and following tergites ver\ tiiiely aiul feet^ly punctured or roughened. 

 rygiiHuiu broadly rovuuled apically. glabrous. Wings yellowish hyaline, 

 broadly darkened along apical margin, norvures blackish, stigma brown. 



32 



