WILLIAM J. FOX. y 



without a smooth medial area, and bearing oblique (laterally) and irregular 

 (medially and apically) rugfe; posterior face more regularly and finely rugoso- 

 reticulate than in longicornis ; sides comparatively finely striated ; tips of femora 

 and tibife and tarsi yellowish, the tibise darker medially; petiole of abdomen 

 slender, not longer than hind femur and trochanter united, the medial furrow 

 of upper surface not as well marked in the preceding species. Length 6 mm. 



Indiana (Say) ; New York. I have not seen the female of this 



species, but have no doubt that the single male specimen before me 



is the same. 



3. Group Kohlii. 



This group has the characteristics of 2. Group, except that the 



petiole is unusually long and not sulcate above. The sculpture of 



head and thorax is very coarse, except in one species ; clypeus tri- 



dentate in ? . 



10. Pncii Kohlii u. sp. 



9 . — Head with deep, separated punctures, those on the front closer and 

 stronger ; furrow back of ocelli very deep ; face and clypeus with dense silvery 

 pubescence, the fore margin of clypeus in the middle with three large teeth ; 

 space between hind ocelli slightly less than that between them and eyes; an- 

 tenna clavate, joints 2-5, or 6, fulvous, the first joint of flagellum nearly as long 

 as the two following joints united ; dorsnlum very coarsely striato-punctate, as is 

 likewise the scutellum and metanotum (post-scutellum), the mesopleurse more 

 closely so: enclosure of middle segment rather short, with a diamond-shaped 

 medial smooth area, on each side of which lies another smooth quadrate area, 

 and then further toward sides are four or five short rugje; posterior face of mid- 

 dle segment with dense, pale pubescence apically, deeply sulcate down middle 

 with a strong depression at apex, coarsely rugoso-reticulate, the reticulation ex- 

 tending somewhat on the sides; legs black, knees reddish, tarsi pale testaceous; 

 abdomen fusiform, pygidium strongly carinated down middle, petiole longer, 

 hind femur and trochanter flattened above, polished and distinctly widened at 

 apex, reddish; wings subhyaline. somewhat reddish purple apically. Length 

 10 11 mm. 



Var. — Petiole black; central area of enclosure of middle segment irregular, 

 with several rugse. 



'J, . — Colored like the 9 > but more coarsely sculptured ; antennse about as long 

 as head and thorax united ; joints 3-10 of flagellum strongly nodose beneath, the 

 first joint about one-third longer than second ; enclosure of middle segment with 

 coarse, irregular rugse medially, the smooth central area, therefore, absent; sides 

 of middle segment toward base rugose; petiole longer than iu female; legs 

 brownish ; second cubital cell narrowed at least two-thirds above. Length 10 mm. 



Philadelphia, Pa. ; Virginia. Four specimens. It gives me great 

 pleasure to dedicate this fine species to my esteemed friend and col- 

 league, Franz Fi'iedrich Kohl, of Vienna, Austria. 



11. Psen piinctatus n. sp. 



9. — Head with distinct, separated punctures, much less coarse than iu Kohlii, 

 those on occiput and cheeks especially, iine; front and clypeus with dense sil- 

 very pubescence ; antennse rather strongly clavate ; flagellum more or less ful- 



TEANS. AM. ENT. SOC. XXV. (2) JANUAKY. 1898. 



