AMERICAN HYMENOPTERA. 239 



the mesonotum; the abdomen shining, imptinctRte. The incision on the apical 

 abdominal segment is rounded at the base and is clearly longer than it is wide 

 at the apex. The apex of the hind tibi» broadly and of the tarsal joints nar- 

 rowly are rufous. 



Granada, Nicaragua (Baker). 



This species cannot readily be confounded with any of the 

 recorded Central American species. 



— ' Plesia fulvinepvis sp. nov. 



Black ; a broad irregular transverse band on the front above the antennae, from 

 the outer edge of which a line, half the width, runs along the orbits to shortly 

 beyond the eyes, the pronotum, except for an oblique black line on the sides of 

 the basal slope, the yellow extending broadly on to the base of the pleurse, a 

 a large mark, longer than wide, transverse at the base, roundly, broadly nar- 

 rowed at the apex, a broad transverse mark on the scutellum, transverse at the 

 base, the apex broadly rounded, a broad line opposite the tegulse, rounded and 

 narrowed at the base, postscutellum, the base of the scutellar keels, a longitudi- 

 nal mark, half on the basal, half on the apical slope of the metanotuni, narrowed 

 to a sharp point at the base and apex, a large mark on the sides of metanotum 

 and apex of metapleurse, the part on the metanotum being largely, triangularly 

 produced above beyond the outer, a large mark on the base of the mesoi)leurae, 

 the upper apical half dilated, a broad band on the apical half of the first abdo- 

 minal segment, not extending to the extreme apex which is black, the second 

 and third segments except at the apex, a broad band, dilated laterally at the 

 apex, in the centre of the fourth, the fifth, except narrowly and irregularly at 

 the apex, the sides of the second ventral broadly, a large mark on the sides of the 

 third, the second almost meeting in the centre and dilated laterally at the apex, 

 and somewhat similar, but more irregular marks, on the fourth, bright lemon- 

 yellow. Legs black, the apex of the fore femora broadly below, the fore tibiae in 

 front, except at the apex, the middle tibije more broadly in front and the middle 

 of the posterior yellow; the calcaria and tarsal spines white; the apices of the 

 tarsal joints red. Wings hyaline, slightly fulvous in front at the apex, the nerv- 

 ures and stigma fulvous; the second abscissa of the radius distinctly longer than 

 the basal or apical, the latter being slightly longer than the apical; the first re- 

 current nervure is received distinctly beyond the middle, the second at the apex 

 of the basal third of the cellule. 9 • Length 13-14 mm. 



Head, thorax and base of abdomen covered with long white hair; the hair on 

 oral region and apex of mandibles rufous. Head, prothorax and mesothorax 

 strongly and somewhat closely punctured; the base of metanotum strongly, 

 irregularly, the apical slope more closely, regularly and finely transversely stri- 

 ated. Base and upper part of propleurte finely, closely, obliquely striated, meso- 

 pleurse strongly punctured; the metapleurse weakly, irregularly obliquely stri- 

 ated. The second, third and fourth abdominal segments are s|iarsely, weakly 

 punctured in the middle; the pygidium closely, regularly longitudinally striated. 



Oslar, Berkeley Co., Colorado. 



May be known readily from P. spllonota by the fulvous colored alar 

 nervures, by the middle abscissa of the radius l)eing distinctly longer 

 than the others, and by the wings not being broadly fuscous in front. 



TEANS. AM. KNT. SOC. XXXIV. JULY. 1908. 



