24 JOURNAL OF ENTOMOLOGY AND ZOOLOGY 
Xeris morrisoni (Cresson) Konow 
(Fig. 27) 
1880a Urocerus morrison Cresson, 2 ¢. Deser. new N. A. Hym. in coll. 
Amer. ent soe. < Trans. Amer. ent soe.; v. 8: p. 35. 
1880 Urocerus tarsalis Cresson, 9. Loc. cit. p. 52. 
1893 Urocerus indecisus MacGillivray, ¢. Wash. Tenthred. and Uro- 
ceride. < Can. ent.; v. 25: p. 248. 
Distribution: So far as known, confined to the west coast of 
the United States from Vancouver to northern California, and 
Tulare County in the Sierras, and the Rocky Mountains of Col- 
orado and Utah. Occurs in company with X. caudatus. 
Xeris macgillivrayi new species 
(Figs. 80 and 35) 
2. ## Head and thorax dull black, a white spot on the upper 
part of the temples; antenne black, shading into reddish yellow 
on the apical portion. Legs brownish black, the anterior tarsi, 
middle tibiw and tarsi and posterior tarsi dull reddish, the pos- 
terior tibiae whitish at extreme base; abdomen except basal 
plates brick red; the sheaths of the ovipositor concolorous with 
the abdomen, the ovipositor darker. Wings uniformly smoky, 
the veins brown, except the costa, which is yellowish. 
Head quadrate, the posterior angles rounded; forehead and 
vertex rugosely confluently punctured, with a longitudinal me- 
dian channel, and two less distinct lateral impressions; temples 
smooth and polished, above impunctate, their lower portions 
with some round median punctures and a row along the margin 
of the eyes, the lower portion with a short sharp median ridge, 
not so marked as in morrisoni; clypeus very prominent, rugose, 
its anterior margin smooth, truncate. Third antennal segment 
slightly exceeding the fourth, twenty-two segments in all, the 
scape broad, flattened, concave beneath, the under surface 
closely, finely punctate. 
Humeral angles prominently carinate, the pronotum behind 
them transversely, rugosely, and coarsely ridged; pleurze 
shallowly punctate; venter impunctate, smooth and polished. 
Posterior metatarsus exceeding the length of the following seg- 
