314 william j. fox. 



Unidentified. 

 Pemphredoii concolor Prov. 



" 9- — Length .40 pee. Black, without markings, with long, whitish hairs; 

 clypeus polished, shining, with clear scattered punctures, without silvery pile, 

 but with yellowish hairs in front. The front above the antenuse finely aciculate. 

 Palpi black, mesothorax without a very distinct median line, and without strise, 

 but uniformly and densely punctured ; scutellum with longitudinal stride; pro- 

 podeum with its reniforra part with striations, strong and irregular at base, more 

 fine and oblique towards the sides. Wings hyaline basally, slightly obscured on 

 their apical half, stigma black, the lower nervure of the first submarginal cell 

 straight. Legs immaculate, the femora with long, whitish hairs. Abdomen 

 polished, shining, in the form of a pointed oval, its petiole rugose about one-third 

 of its length, the anal segment above narrowly channeled, the petiole with the 

 terminal segment haired." 



" Cap Rouge.' ' This is evidently distinct from concolor Say. 



Penipliredoii inontaniis Dhlb. 



"Mas vix 4 lin. long; antennae and palpi apice, anoque infra piceo-fulvis ; 

 dorsulo nitido oblique punctulato subtilissime parceque strigoso." 



" Femina subsemipollicaris antennis nigrofuscis; dorsulo opaco confertim cori- 

 aceo-strigoso ; scil. antice transversim strigoso, postice autem et versus scutellum 

 utrinque sculptura strigosa elegauter gyrata vel subcirculari. Valvula analis 

 dorsalis subsemicouica parce punctata; area media s. autica plana lata (h. e. 

 duplo latiore quam canaliculo in Pemphr. lugiibris J, sed angustiore quam areis 

 proximus lateralibus triangularibus), lineari, coriacea punctis perpaucis majori- 

 bus. versus apicem submarginata, apice lata obtusa." 



Europe ; British Columbia (Kohl). 



Peiiiphretlon (?) marginatum Say. 



" Black ; autennre at base, mandibles and feet honey-yellow." 

 "Body polished; antennae blackish; first and secoud joints honey-yellow; the 

 former as long as the second and third together, which are nearly equal ; mandi- 

 bles honey-yellow, not very obviously denticulated at tip. Wings tinted with 

 fuliginous; nervures brown ; stigma fuscous, not much dilated; uervures of the 

 second recurrent nervure margined with whitish, the latter abbreviated before 

 the anal tip. Abdomen subsessile; with the exception of the first segment, pi- 

 ceous blackish; feet honey-yellow. Length over three-twentieths of an inch." 

 "The second cubital cell is somewhat larger than usual, and the nervures 

 which form it, as well as the second recurrent nervure, are less distinct than 

 usual." 



DIODOIVTrS Curtis. 

 FEMALES. 



1. All the tibife more or less yellowish 2. 



Tibiae not, or the fore tibiae only yellowish 3. 



2. Apex of femora, the tibiae and tarsi yellowish ; nietanotum rather finely ru- 



gose. Length 5 mm ...occideutalis. 



