196 BULLETIN 15, UNITED STATES NATIONAL MUSEUM. 



Prosacantha flavicoxa, sp. nov. 



9, Lons'tli, 2.1'"'". Black; head wide, sparsely punctate, shining, 

 the inner orbits and h)wer part of lace striated; thorax and scutel- 

 lum rugulose, opaque, pubescent; scape and legs, including all coxte, 

 bright 3'ellow; flagelluni l)lack. Antenuic 12-joiiited; first funiclar Joint 

 about twice as long as the pedicel, 2^ tiniQs as long as thick; second 

 joint shorter; third and fourth minute, transverse; club G-jointed, 

 about as long as the funicle, the Joints transvei'se, the second a little 

 the longest joint. Postscutellar spine triangular, acute, horizontal. 

 Angles of metathorax acutely spined. Wings clear hyaline, the nerv- 

 ures yellowish. Abdomen oblong-oval, polished, black, the first and 

 second segments striated. 



Habitat. — Virginia. 



Type in Coll. Ashmead. 



Described from a single specimen. 



Prosacantha americaua Ashm. 

 Ent. Am., in, p. IIG, </ ; Cress. Syu. Ilyin., p. 313. 



S. Length, 1.2""". Black; head transverse but thick, polished, 

 the face smooth, with some faint stri;c only below the eyes, the inner 

 orbits not striated; thorax and 'scutellum coarsely rugulose, opaque; 

 antenute long, filiform, the scape pale only at base; legs yellow, the 

 coxte black, shining. 



Postscutellar spine small. Angles of metathorax subacute, small. 

 Wings subhyaliue, the nervures brown. Abdomen broadly oval, the 

 first and second segments striated, the following smooth, polished, 

 black. 



Habitat. — Jacksonville, Fla. 



Type in Coll. Ashmead. 



Prosacantha flavopetiolata, sp. nov. 



S . Length, 1.5'""'. Black, shining, very sparsely punctate; head 

 transverse, not thick, the face highly polished, impunctate; mandibles 

 and legs brownish -yellow; thorax with faint indications of furrows 

 posteriorly. Antennse long, filiform, 12-Jointed, black, the scape yel- 

 lowi.sh beneath; the flagellar joints long, cylindrical, the second a 

 little longer than the first, the third thickened toward tip. Post-scu- 

 tellar spine small, triangular. Angles of metathorax not prominent 

 or acute. Wings hyaline, the nervures i)ale brown, the marginal vein 

 very long and slender, the stigmal very short but ending in a little 

 knob. Abdomen broadly oval, black, shining, the petiole yellow, the 

 first and second segmenls striated, rest of the segments polished, im- 

 punctured. 



9. Length, 1.2""". Differs from male in having the thorax and 

 scutellum closely punctulate, opaque, the scutellar spine larger and 



