HENEY L. VIEKECK. 391 



Thorax.- — Essentially as in spectabilis ; pubescence the same as on the head and 

 abdomen; mostly black; following parts yellow unless otherwise stated, ante- 

 rior and posterior margin of pronotnm, a spot on each side of scutel, postscutel 

 (tinted with orangej, mark on each side of metathorax rather ferruginous, spot 

 beneath tegulje on pleura sort of orange color as is the nontestaceous portion of 

 the tegulse and greater part of femora ; the following parts are brown : coxee of 

 middle and posterior legs partly, practically all of tibiae and tarsi ; wings infusca- 

 ted and brownish. 



Abdomen. — Smooth and shining, with distinct well-separated punctures, except- 

 ing along the apical margin of the second dorsal segment and on the exposed 

 portions of the third, fourth and fifth dorsal segments where they are very 

 coarse and close, giving them an appearance of rugosities, the apical dorsal seg- 

 ment sparsely, these punctures on a smooth surface, the second, third, fourth and 

 fifth ventral segments uniformly punctured in much the same way as the dorsal 

 segments are at base, the apical ventral segment granular, following portions yel- 

 low, a broad apical band on the first dorsal segment prolonged on each side into 

 a yellow mark extending forward laterally, and all of the succeeding segments 

 except at base. 



'J, . — 10 mm. — Essentially like the 9. differing somewhat in the yellow of the 

 scutel which is reduced to two inconspicuous spots and in the postscutel where 

 the yellow is reduced to two lines. 



Type. — University of Kansas. 



Type locality. — Thomas' Ranuh, Oak Creek Canon, 6000 ft., 20 

 miles southwest of Flagstaif, Arizona. 

 Collected by F. H. Snow. 



Odyneriis hidalgiforinis n. sp. 



Related to hidalgi, from which it is readily separated by the 

 more sparsely punctured less deeply canaliculated second abdominal 

 segment. Has the thorax longer than wide showing its affinity to 

 Stenodynerus. 



J. — 12 mm. — In structure, pubescence and sculpture very like spectabiformis, 

 but there is no depression on the vertex, and the posterior surface of the meta- 

 thorax is bisected by a shining line. 



Head. — Black, with the following parts yellow, greater part of clypeus, the 

 blackish portion thereof being confined to the anterior two-thirds, supraclypeal 

 mark extending up to between the antennal sockets, the anterior half of the 

 scape and a spot on each side of the head back of the eyes. 



Thorax. — Black, with the succeeding parts yellow, anterior half of pronotum. 

 spot on each side of the thorax beneath the tegulse, a margin on the tegulse, a 

 band on postscutel, and a mark on each side of the posterior aspect of the meta- 

 thorax along the lateral margin. 



Abdomen. — Black, mostly ornamented with yellow as follows: the first dorsal 

 segment in such a way as to give the black portion a somewhat hour-glass appear- 

 ance, an apical band prolonged along the lateral margin and then directed 

 inward toward the median line on the second dorsal segment, an apical band on 



TKANS. AM. ENT. SOC. XXXIII. JANUABY, 1908. 



