HENRY L. VIERECK. 209 



the insertion of the antennje is a roughened triangular area, and above this is 

 an inverted V-shaped eminence, which is polished, and with rounded sides. Be- 

 tween the apex of the eminence, which is toward the anterior ocellus and the 

 anterior ocellus, there is a distinct groove separating the front into two halves. 

 On either side of this groove the front is triangularly elevated and covered with 

 well-separated punctures, which are larger than the punctures on the front 

 nearer the eye margins. Vertex with a V-shaped depression extending from 

 where the posterior ocelli could he imagined to be if present and uniting with a 

 median groove at the apex, thus forming a Y. 



The space between the eyes on the vertex approximately one and one-half the 

 distance between the eyes at the base or the clypeus. The third joint of the an- 

 tennae a little longer than the fourth and approximately as long as the fifth. 

 Cheeks granular or appearing minutely closely punctured. 



Prothorax minutely, closely punctured, the dorsulum finely closely punctured, 

 but the punctures coarser than on the pronotum. Scutellum and postscutellum 

 more closely punctured than the dorsulum. The scutellum more shining than 

 the dorsulum, the postscutellum dull and apparently impunctate. 



Metathorax very delicately sculptured with minute strije. Pygidial area with 

 distinct lateral margins nearly twice as long as wide at base and with sparse dis- 

 tinct punctures. 



Color. — Testaceo-castaneous. Head black, excepting the greater portion of the 

 clypeus, mandibles and antennae, which are castaneous. Mandibles at base and 

 apex, clypeus at base, blackish. Apical two-thirds of flagellum brownish, 

 sutures of the thorax blackish. Sternum black. 



The thorax and abdomen more castaneous than testaceous, while the legs are 

 the reverse. Wings yellowish, with the uervures testaceous. 



Type. — University of Kansas. 



Type locality.— Clark Co., Kansas, 1962 ft. 



One female, taken in June, by F. H. Snow. 



Aiicistromnia tachysphecoides n. sp. 



Belongs near chilopsidis, from which it is very different. 



%. — 8 mm. — Anterior margin of the clypeus rounded, entire. Front, along 

 the middle, with distinct, deep, separated punctures and shining. Along the eye 

 margins the front is more closely punctured and rather opaque. The occiput 

 punctured in much the same way as the middle of the front. From between the 

 insertion of the antennse to the anterior ocellus there is a shallow, rather indis- 

 tinct channel. Posterior to the oeellar field there is a "V"-shaped groove. The 

 distance between the eyes across the vertex is about three-fourths (f) as great as 

 the distance between the eyes at the base of the clypeus. The third antennal 

 joint is as long as the fourth and the fourth as long as the fifth. The scape is 

 approximately as long as the third and fourth joints of the antennae combined. 



The sculpture of the dorsulum is approximately as in veyeta. Legs spinose as 

 in vegeta. 



The abdomen is tessellate, practically impunctate. The last dorsal segment, 

 however, with rather distinct shallow punctures. The terminal ventral segment 



TKANS. AM. ENT. SOC. XXXII. (27) JULY, 1906. 



