26 PEOCEEDIlSrGS OF THE NATIONAL MUSEUM vol.78 



Type-locality. — Serra dos Orgaos, State of Rio Janeiro, Brazil. 

 Type. — In Paris Museum. 



One specimen taken in 1902 at an altitude of 500-1,000 meters 

 by E. R. Wagner. 



24. POLYCYRTUS (POLYCYRTUS) MEDIALBUS, new species 



Female. — Length 10 mm. 



Vertex in direct front view not at all concave but with rather 

 deep grooves flanking the lateral ocelli; frons with poorly defined 

 scrobes but with a deep median furrow that forks above to about 

 half surround the anterior ocellus and ends below in a deep pit above 

 the base of the stout acutely pointed horn; eyes slightly convergent 

 below and comprising distinctly less than two-thirds of total width 

 of head; face polished with a shallow groove each side of middle; 

 malar space opaque, hardly as long as basal width of mandible, 

 slightly constricted; mouth hardly as broad as narrowest width of 

 face; occipital carina very nearly parallel with posterior margin of 

 eye, j^rominent below and with a small notch separating it from 

 hypostomai carina, latter high apically; temples flat, oblique, more 

 than a third as long as short diameter of eye; diameter of ocellus 

 three-fourths ocell-ocular line and more than twice postocellar line; 

 basal joint of flagellum hardly eight times as long as thick. Thorax 

 polished, unsculptured except that metapleurum is obscurely rough- 

 ened; pronotum with anterior lateral carina moderately high but 

 without epomia, humeral margin somewhat tumid ; prescutum rather 

 low, lateral lobes slightly flattened; scutellum rather low, weakly 

 compressed; mesopleurum with furrows foveolate and a few rugae 

 in humeral angle; propodeum polished, carina rather low, bent 

 slightly forward medially, spiracle small, nearly circular, apophyses 

 of moderate size, midway between carina and apex; hind femur 

 about twice as thick in middle as at extremities; inner calcarium 

 two-fifths as long as basitarsus; areolet of normal form and size, 

 recurrent strongly antefurcal, nervulus interstitial, postnervulus 

 broken at middle, nervellus broken just above lower third. Abdo- 

 men rather slender, postpetiole barely twice as broad as petiole, sec- 

 ond tergite a little more than three times as long as broad at base and 

 very nearly as long as first; sheath broken but apparently much 

 shorter than hind tibia. 



Head black; clypeus except margins, mandibles, and annulus 

 from middle of flagellar joint 5 to joint 11 white; palpi stramine- 

 ous; thorax ferruginous; pronotum dorsally piceous; mesoscutum 

 black, scutellum ferruginous with carinae and apex white, postscu- 

 tellum and apophyses apicallj'^ white; front and middle legs testa- 

 ceous with front coxae anteriorly and tibiae stramineous, tarsi fus- 



