2 PROCEEDINGS OF THE NATIONAL MUSEUM. vol.60, 



ocellus, another just behind the vertex, and a third at the malar 

 space ; the pronotum white margined below as well as above ; lateral 

 sutures of mesothorax not white; antennae red at base; abdomen 

 not brownish nor especially truncate at apex, and without a white 

 apical spot. 



Female. — Length, 10 mm. ; antennae, 10 mm. 



Head finely punctate, densely so on face; frons polished impunc- 

 tate on lower half, opaque in upper half; face divided into three 

 nearly equal areas by two well-defined longitudinal grooves ; clypeus 

 weakly separated medially, broadly truncate at apex, sparsely punc- 

 tate ; labrum briefly exserted ; malar space slightly longer than basal 

 width of mandible; eyes divergent below; temples convex, strongly 

 sloping; diameter of lateral ocellus equal to ocell-ocular line and 

 slightly shorter than postocellar line; thorax densely, finely punc- 

 tate; pronotum rugulose in middle at sides; notauli briefly im- 

 pressed; propodeum punctato-rugulose behind, basal transverse 

 carina entirely lacking, the combined areola and basal area nearly 

 square, spiracle long oval, situated near base and very near to lateral 

 carina, about its length from pleural carina; legs, especially anterior 

 femora, stout, opaque coriaceous; areolet oblique trapezoidal; abdo- 

 men subpolished, postpetiole and second and third tergites weakly 

 punctato-shagreened ; petiole flat dorsally, the dorsal carinae obso- 

 lete on postpetiole; ovipositor barely exserted; hypopygium reach- 

 ing apex of abdomen. 



Bright uniform rufous, with the following ivory white markings : 

 Annulus occupying flagellar joints 9-12 and part of 13, palpi, man- 

 dibles, sides of clypeus, malar space immediately at base of man- 

 dible, orbits (with interruptions noted above), upper and lower 

 margins of pronotum, line below front wing, posterior half of scutel- 

 lum, and apex of postscutellum ; antennae black, reddish at base; 

 wings pale brownish stained; legs nearly uniform dark reddish 

 testaceous, front pair yellow in front. 



I'ype locality. — Whitefish Point, Michigan. 



Type.— C^it. No. 24616, U.S.N.M. 



One specimen taken July 2, 1913, by A. W. Andrews. 



Genus ISCHNOPSIDEA Viereck. 



Synonym. — Rhcxidennus Ashmead, not Foerstek. 



(RHEXmERMUS) ISCHNOPSIDEA JAPONICUS (Ashmead). 



Very close to, if not synonymous with (Ischnus) Ischnopsidea 

 nigrellus (Wesmael). It was the first species included in the genus 

 Rhexidermus Foerster, but will not run there in Foerster's key since 

 the scutellum is elevated and the propodeum extends perceptibly 

 over the hind coxae. The type is in the United States National 

 Museum. 



