J. CHESTER BRADLEY 127 



Robust; clypeus broadly rounded; front and vertex closely granular- 

 punctate; ocelli facing dorsad, no prominence between them; first flagellar 

 segment longer than the second, this shorter than the third, but both the 

 second and third very short; penultimate swollen, last deeply incised behind 

 and obliquely truncate. 



Upper lateral angles of pronotum roimded ; mesonotum very densely granu- 

 lar punctate; scutellum not margined, shallowly but more coarsely, somewhat 

 confluently punctate; sculpture of postscutellum obscured by hairs; meso- 

 pleura prominent, with differentiated impunctate epicnemial area, rather 

 obscurely and shallowly punctate; posterior surface of propodeum with rather 

 numerous longitudinal wrinkles, converging toward the petiole, dorsal sur- 

 face with a transverse row of small inconspicuous and irregular shallow 

 meshes. 



Dorsal surface of abdomen with small, sparse and shallow punctures; the 

 last segment with two prominent teeth, the margin between which is straight ; 

 second ventral segment moderately convex at base. 



Habitat. — California: Claremont, one male, (C. F. Baker). 



Type. — Cornell University no. 1381. 



This species is allied to rusticus Cresson, but differs as follows: 



Clypeus with margin rounded; ocelli large; wings margined with fuscous; 

 second, third and sides of fourth abdominal segments red; yellow marks 

 on abdomen very indistinct sphecodoides new species 



Clypeus with its median portion broadly produced, squarely truncate, rect- 

 angular; ocelli small; wings not margined with fuscous; second, except 

 base, third and fourth abdominal segments black; abdomen with yellow 

 bars rusticus Cresson 



Proportions of ocelli 



Transver.se diameter Their distance Their distance 



of liind ocelli from the eyes from one another 



rusticus 6 16 13 



sphecodoides 8 14 13 



Nysson (Nysson) tristis Cresson 



California: Between Kern Lake and Rock Creek, Tulare County, alti- 

 tude between 62.50 and 7000 feet, July 27 to August 1, 1915, one male, (the 

 author), [Cornell University]. 



Nysson (Nysson) recticornis new species 



o"'. Black; mandibles at base, obscure spot on each side of clypeus, scape 

 beneath, pronotal tubercles, front and middle tibiae externally, line on pos- 

 terior tibiae externally, and transverse spots on first three dorsal segments, 

 buff; rest of 'tibiae and tarsi somewhat ferruginous. Body with short white 

 silky pubescence. Wings nearly hj^aline. Length, .3.7 mm. 



Area bearing ocelli slightly elevated, but no distinct tubercle between 

 them; vertex rather sparsely, front densely punctate; clypeus with rounded 



TRANS. AM. KNT. SOC, XLVI. 



