Beport upon Aculeate Hymcnoi^tcra. 223 



Family XVII. PEMPHREDONID^. 



Subfamily I. FEMPEREDONINjE. 

 Genus Stigmus, Jiirine. 



Two species of this genus are in the collection, and may 

 be distinguished as follows : 



Head, thorax and abdomen wholly black ; antennto except toward 

 ajiex, tegula?, collar at sides, front legs, middle and hind trochanters, 

 middle legs except coxjo and femora above, and hind tarsi, honey- 

 yellow ; prothoracic tubercles posteriori}' and base of hind tibite 

 white N. .'imitJiii, n. sp. 



Head and abdomen 1 duck, the thorax an 1 the petiole of abdomen, 

 honey-yellow S. tlioraciois, n. sp. 



88. Stigmus smithii, n. sp. 



$ . Length 4mm. Polished black. Mandibles, except at tips, the 

 palpi, tubercles posteriorly, basal half of hind tibiae and the hind 

 tarsi, white. Antennae, except toward tips, collar at sides, tegulse 

 and legs, except as noted, honey-yellow or reddish-yellow. Middle 

 and hind coxse above and middle and hind femora more or less 

 blackish, the trochanters yellowish. Wings hyaline, the veins brown, 

 the stigma large, Vjlack. Face shagreened ; the clypeus clothed with 

 a silvery pile. Pedicel thicker and one and one-half times longer 

 than the first joint of the flagellum. Pronotum striate above ; 

 mesonotum with an indistinct median longitudinal line, smooth, 

 impunctate, except anteriorly where the siirface is finely coriaceous, 

 and posteriorly just in front of the scntellum, where the surface is 

 finely wrinkled ; scutelhmi polished with a slightly impressed median 

 line ; metathorax areolated. Abdomen normal ; the petiole or first 

 segment, as long as the hind femur, striate. 



St. Vincent. Described from one ^ specimen. 



SO. Stifjmus thoracicus, n. sp. 



$ . Length 3-4 mm. Head and abdomen, exee})t the petiole, 

 black. Antenn;e, except the last three or four jcjints, the thorax, 

 the legs, except as hereafter noted, and the petiole of the abdomen, 

 honey-yellow. Mandibles, except tips, palpi, tarsi, and base of hind 

 tibice, white; the apical half of hind tibia; black. Wings hyaline, 



