CLARENCE E. MICKEL 401 



Hoplisus rufocaudatus sp. nov. 



cf . Length 10 to 11 mm. Black with red and yellow markings. Head 

 black; covered with a sparse silver}' pile; e3'es converging below; space be- 

 tween the eyes at the base of the antennae equal to about twice the median 

 length of the clypeus; front and vertex impunctate; ocelli situated on a slight 

 prominence, the distance between the posterior ones greater than the distance 

 between the lateral ocelli and the nearest eye margin; clypeus, labrum, man- 

 dibles except the tips and front except the median third, yellow; median third 

 of front, vertex and cheeks black; scape beneath rufous, flagellum beneath 

 piceous, scape and flagellum above black; flagellar joints one to seven strongly 

 rounded out beneath, eight to ten slightly spinose, and joints eight to eleven 

 somewhat lengthened. Thorax black, covered with a sparse silvery pile; 

 mesoscutum impunctate, episterna and sides of propodeum with large, sparse, 

 shallow punctures; suture between mesoscutum and mesoscutellum foveolate; 

 enclosed space of propodeum longitudinally striate at the base; pronotum, 

 posterior lobes of pronotum, spot beneath tegulae, large spot on anterior 

 portion of episterna, and mesoscutellum, yellow; tegulae, a small spot on each 

 side of mesoscutum near the tegulae, and a large spot on each side of the propo- 

 deum rufo-testaceous. Abdomen black, covered with a sparse silvery pile; first 

 tergite impunctate, remaining tergites with large, sparse, rather deep punctures; 

 sternites glabrous; first abdominal tergite with a broad yellow fascia posteriorly 

 which is deeply emarginate medial!}^; second and third abdominal tergites 

 with a broad yellow fascia posteriorly, although the second is broader than the 

 third, and both are dilated laterally; fourth abdominal tergite with a posterior, 

 narrow yellow fascia; second and third sternites with a narrow, posterior 

 yellow fascia which is almost interrupted medially and much dilated laterally; 

 first tergite medially and the sixth and seventh abdominal segments entirely, 

 rufo-testaceous. Anterior, intermediate and posterior legs entirely rufo- 

 testaceous except the front and intermediate coxae, which have a yellow spot 

 anteriorly. Wings hyaline, somewhat yellowish basally, with the usual fus- 

 cous cloud; stigma yellowish; cubital cell in hind wings terminating a very 

 little bej'ond the origin of the culjital nervure, almost interstitial. 



9 . Unknown. 



Type, a male taken at Mitchell, Nebraska, August 12, 1915, 

 (E. M. Partridge). 



Runs in Fox's table to decorus from which it differs in having 

 the propodeum punctured, in the enclosure of the propodeum 

 being striated only at the base, in the yellow of the interior orbits, 

 in the number of fasciae on the abdomen, and in the sixth and 

 seventh abdominal segments being entirely rufo-testaceous; by 

 which latter character it is easily distinguished. 



TRANS. AM. EXT. SOC, XLII. 



