38 PROCEEDINGS OF THE NATIONAL MUSEUM vol.78 



(nearly interrupted behind top of eye and in malar space), and 

 annulus begining on flagellar joint 7 white; thorax black and white 

 or whitish, propleura, anterior laterial and humeral margins of pro- 

 tonum, scutellum and postscutellum apically and the scutellar carinae, 

 tegulae, mesopleurum except along sutures, sternum, metapleurum 

 except suture and a small spot at apex, and propodeum white, the last 

 with basal and lateral sutures and a narrow mediam stripe crossed on 

 carina by a narrow line, black ; legs testaceous, coxae above whitish, 

 hind trochanters tinged with piceous, tibia yellowish, infuscate at 

 extreme base, tarsus whitish, front and middle tarsi fuscous; wings 

 yellowish hyaline, stigma pale, veins brown; abdomen white with 

 piceous black markings as follows: disk of postscutellum, venter 

 of petiole, extreme base of second tergite and a discal spot on same 

 broad posteriorly and bifurcate anteriorly, and other tergites basally 

 and medially. 



37. POLYCYRTUS (POLYCYRTUS) DUPLICATUS, new species 



Apparently very closely allied to nianciis and possibly synonymous 

 with that species, the type of which I have not seen. It differs from 

 a male cotype of manaits in the United States National Museum in 

 the form of the occipital carina in addition to several differences in 

 color. There appears to be some justification for doubt that the 

 above mentioned cotype is conspecific with the female type of memcus. 



Female. — Length 11 mm. 



Vertex in front view nearly flat; frons with scrobes shallow, horn 

 rather stout conical ; eyes weakly convergent below, comprising consid- 

 erably less than two-thirds total width of head ; face polished, minute- 

 ly alutaceous laterally above and distinctly punctate medially above, 

 with a rather deep longitudinal impression on each side of middle; 

 malar space as long as basal width of mandible, constricted, mouth 

 hardly as broad as narrowest width of face; temples in side view 

 rather narrow, occipital carina convergent above with posterior mar- 

 gin of eye, rather prominent below where it recurves and does not 

 reach the hypostomal carina, from which it is separated by a shallow 

 groove ; temples from above weakly oblique, flat, hardly a third as long 

 as short diameter of eye ; diameter of ocellus two-thirds as long as ocell- 

 ocularline; basal joint of flagellum nearly eight times as long as thick. 

 Thorax polished, mesopleurum and metapleurum sparsely punctate in 

 middle; pronotum with anterior lateral margin subangulate, the 

 carina moderately high, epomia strong, angulating the anterior end 

 of the swollen humeral margin, groove along posterior margin 

 foveolate, the foveolation in middle prolonged into striations extend- 

 ing into the scrobe ; prescutum rather high, lateral lobes faintly sub- 



