WILLIAMS: LARRID^ OF KANSAS. 177 



be separated therefrom. The three above mentioned are nearer the Larrinae 

 than the rest, and differ a good deal in the rntennae, venation, et?. (See 

 figs. 29 and 30.) Whether the camera lucida drawing of the mandible of 

 the type of Nit. foxii, fig. 28, shows this mandible to be shallowly emar- 

 ginate or not emarginate exteriorly would 1 e herd to decide. The writer 

 can do no better than to include all the Kansas species under the genus 

 Niteliopsis in awaiting a more perfect arrangement of the group than 

 the present. 



Key to the Species of Niteliopsis. 



1. Second joint (pedicel) of antennae about one-half or less the length 



of the third, which is at least three times as long as its apical 

 diameter (fig. 29); antennse not at all clavate; first recurrent 

 ncivuro running well into the second submarginal cell (fig. 18) ; 



abdomen red foxii j 



Second joint of antennae from one-half the length to as long as the 

 thii-d joint, which is not more than two times its apical diameter; 

 antenna somewhat clavate (fig. 30); second recurrent nervure 

 running into the first submarginal cell, or at most just received 

 into the second submarginal; abdomen black 2 



2. As viewed from above (under a compound microscope), abdominal 



segments 1 and 2, at least, are finely reti:ulate or appear scaled, 

 the punctures for the reception of the pile being very shallow 

 and therefore not pit-like; abdomen evenly rounded; females 



4.2.5 mm. or less long, males 3 mm. long affinis ^ j 



Abdominal segments 1 and 2 with deep separate punctures, there- 

 fore not reticulate; abdominal curve somewhat interrupted by 

 the intersegmental constrictions; length, 4-6 mm 3 



3. Pronotum, postscutellum and all the tibiae marked with creamy yel- 



low; transverse-median vein commonly arising beyond the basal 

 vein; disc of propodeum without a distinct, broad and bounded 

 sulcus apically, and with well-separated longitudinal to some- 

 what diverging striae, reaching usually to apex; no transverse 



apical striae inerme ^ 5 



Pronotum and sometimes apex of tubercles of pronotum with creamy 

 yellow, or the pronotum all black; transverse-median vein basad 

 of or interstitial with basal vein ; disc of propodeum with a well- 

 marked broad apical sulcus, and with a few short or indistinct 

 striae from the base, transverse apical striae present. 



kansensis o 



Nit. sayi of Colorado is sculptured on the abdomen like affinis, while 

 niger, from the same locality, 'resembles inerme in that respect. 



Niteliopsis foxii Vier. 

 (Fig. 18, venation; 28, mandible; 98, pygidium.) 

 Niteliopsis foxii Viereck; Trans. Am. Ent. Soc, XXXII, 207-8; 1906. 5 . 

 The type comes from Clark county, Kansas; June; F. H. Snow. An- 

 other 2 '*^as taken in Haskell county; July, 1911. It was running over 

 tV'e ground, now and then entering holes and crannies. The species is very 

 close to if not identical with .Y. vierecki Roh., which occurs in Colorado. 



