96 Psyche [June 
stripe on metathorax, area between wings and middle and hind legs, 
and region round tubercles; third antennal joint shorter than fourth; 
scape red; flagellum entirely red; scutellum bigibbous; tegule bright 
ferruginous, punctured; wings strongly dusky, with a hyaline area 
beyond submarginal cells; stigma dark ferruginous, nervures dark 
fuscous; b. n. going far basad of t. m.; first r. n. entering second 
s. m. much beyond middle; legs red, hind femora with much black, 
the others with some at base; hind basitarsus suffused with blackish; 
abdomen shining bright ferruginous, the segments not at all dark- 
margined, first segment black at extreme base and half-way along 
sides in second segment, with a large yellow spot on each side, third 
with very small spots; apical segments without yellow; venter without 
yellow. The mandibles are simple, and there is no yellow at lower 
corners of face. 
Hab.— Orcus Island, Washington State, latter half of July, 
1909 (W. M. Mann). The following table separates several females 
of Nomada s. str. described from Washington State: 
Abdomen: without. yellow spots... tt sadiesies o. -lesule = kincaidiana Ckll. 
Abdomen with yellow spots, at least on second segment............. 1B 
1. Metathorax black, except for a couple of hardly visible red spots on 
enclosure; abdomen with scanty short silvery hairs, shining in certain 
TRE aap ch tab da pieegeiat xvas cai ont she uteass Phas uate Ie ale Rees Les euch ete Rte itamera CKkll. 
Metathorax red with a central black band; abdomen without shining 
SaMen yy MAINS 3) 25f/s caja tin jraece’y = patgeled. stoawise-laa plied’ a 5neiniay «(keene 2, 
2. Abdomen deep chestnut red; wings darker.............. orcusella Ckll. 
Abdomen) Weht red). 4.5 cat os\eam heli: oats were a> anit flammigera Ckll. 
The Nomadz of Washington State were listed and tabulated by 
Viereck in Canadian Entomologist, Aug. 1905. A collection re- 
ceived from Mr. W. M. Mann contains not only the new forms 
described above, but also several others new to the state, so it will 
be worth while to give a new list, complete to date. I have omitted 
from it some males of Nomada s. str., which probably belong with 
females already described, but cannot be certainly associated with 
them at present. 
Gnathias. 
This group differs from all the others in having bidentate mandibles. 
(1.) WV. perbella Viereck. Hoquiam (Burke, fide Viereck) ; Olympia and 
Seattle (Kincaid, fide Viereck); Wawawai, May 1, both sexes 
(Mann); Pullman, May (Mann). 
