408 AMERICAN HYMENOPTERA. 



dorsal, an apical margin on the latter occupying nearly one-fourth of the exposed 

 portion of the segment, a corresponding, border on the second ventral and on 

 fourth dorsal segments. 



Type. — University of Kansas. 

 Type locality. — Bill William's Fork, Arizona. 

 Collected in Angust by F. H. Snow. 

 Odynei'iis (Steiiodynerns) giilielini u. sp. 



Related to xanthianus, from the description of whicli (Saiiss., 

 Am. Wasps) it differs as follows : black, with pale markings. 



9 . — 9 mm. — Head. — Basal third of clypeus yellow, as are the following parts: 

 scape anterorly (brownish basally), a mark between the insertion of the autennse 

 and extending a little above the same, and another mark on the face above, fiU- 

 •ng the emargination of the eyes and a stripe back of each eye and adjoining the 

 upper half of the posterior margin of the latter. 



Thorax. — Postscutel elevated, almost crested along the anterior margin, uni- 

 formly, strongly punctured, the punctures about the same in size as those on the 

 head and abdomen ; the following parts luteous: anterior half of pronotum mostly 

 tegulse, excepting a central testaceous area, a mark on dorsum back of tegulse and 

 a stripe on the apical half of the anterior and middle femora; there is a luteous 

 stripe on each of the tibise; cosje and trochanters mostly black; femora and 

 tibise mostly brownish to brownish ferruginous, tarsi and claws completely 

 brown ; wings as to color about as in anormifonnis. 



Abdomen. — Second segment punctured much the same as in anormiformis; a 

 triangular border along the posterior margin of the first dorsal segment with a 

 lateral prolongation yellow, a spot on each side of the last named segment and 

 its apical margin luteous, the following also luteous ; apical margin of the second 

 and third venti'al and apical margin of fourth and fifth dorsal segments. 



Type. — University of Kansas. 



Type locality. — Bill William's Fork, Arizona. 



Collected in August by F. H. Snow. 



Ciorytes giilielmi n. sp. 



Related to hamatiis. Black, with pale markings. 



9. — 7 mm. — Head. — Front distinctly punctured, the punctures irregularly 

 separated and nowhere adjoining; scape almost as long as the combined length 

 of the three following joints of the antennsB, first joint of flagel nearly as long 

 as the two following joints together, the following parts yoUow : clypeus, except- 

 ing the brown anterior margin, the mandibles at base, the scape in front, and a 

 margin along the eyes on the face. 



Thorax. — Dorsalum mesopleura and metathorax with rather large separated 

 punctures, exclosure of the latter rather poorly defined and traversed by almost 

 adjoining longitudinal striae, mesopleura distinctly carinated, but not at all dis- 

 tinctly separated into two areas each ; tibise and tarsi with rather sparse weak 

 bristles, wings clear, excepting a fuscous cloud which occupies practically all of 

 the marginal and first submarginal, fully half of the half of the second submar- 

 ginal and a small portion of the thiid discoidal cells, there is also a fuscous spot. 



