THE CANADIAN ENTOMOLOGIST. 281 



metathorax, with much less definite cancellation, the paler hair of apex 

 of abdomen, the copious pale hair of face, the shining and strongly- 

 punctured anterior part of mesothorax, the smaller and darker tegulaj, etc. 



Hub. — Grand Coulee, "Columbia River," Washington State, July 12, 

 1902. Sent by Mr. Melander to Mr. Viereck. 



Diuiapis ochracea, Ckll, 



^. — N. Yakima, Washington State, June 26, 1903, two ( Eldred 



/e?me). Like a Diadasia, but the clypeus of the male is cream-coloured. 



Not previously known north of New Mexico and Arizona ; it well 



illustrates the northward extension of the southern fauna in the interior 



region west of the Rockies. 



JVomada Je?mei, n. sp. 

 (^ . — Length about 8 mm., anterior wing just over 6 ; black, with 

 creamy-white markings ; thorax and upper part of head coarsely rugoso- 

 punctate ; abdomen very finely and closely punctate, giving it a dullish 

 and rough appearance, though the punctures are strong and perfectly 

 distinct, as seen with the compound microscope ; head broad ; eyes pale 

 gray ; middle of face with conspicuous appressed silvery-white hair ; 

 labrum, basal part of mandibles, clypeus and lateral face-marks creamy- 

 white ; mandibles simple, dark at apex, with bright ferruginous between 

 the dark and the light ; no supraclypeal mark, except a faint and suffused 

 reddish spot ; a black notch at upper junction of clypeus and lateral 

 marks ; lateral marks narrow except at base, ending at level of antennae, 

 the end broadened and obliquely truncate ; scape fairly stout, creamy- 

 white in front ; flagellum ferruginous, suffused with black above, its first 

 joint scarcely half the length of second (slightly over half on the long side, 

 but conspicuously less than half on the short) ; tubercles, a pair of minute 

 and obscure dots on upper part of prothorax, and a pair of large round 

 mammiform elevations on scutellum, creamy white ; metathorax all black ; 

 pleura with a large transverse ferruginous patch, on which are two large 

 creamy-white patches ; tegulae testaceous, with a large creamy-white mark ; 

 wings clear, with the apex dusky ; stigma amber-colour^ nervures fusco- 

 ferruginous ; b. n. meeting t. m. slightly to the basad side ; second s. m. 

 broader above than third, and receiving the first r. n. a little beyond its 

 middle ; legs ferruginous, marked with black and creamy-white ; all the 

 tibicC have the apex externally broadly white ; the hind tibiae are dark, 

 with the base and apex white ; the anterior and middle femora have the 

 lower margin broadly blackened for about the basal two-thirds, but on the 



