CHARLES ROBERTSON 13 
niger Rb., type, packardii Rb., type, 4-notatus Say; Pemphredon- 
idae: Cemonus inornatus Say, Mimesa cressonii Pe., Psen tibialis 
Cr.; Philanthidae (including Cerceridae) : Cerceris astarte Banks, 
bicornuta Guerin, clypeata Dh., compacta Cr., compar Cr., echo 
Mickel, finitima Cr., fulvipes Cr. (fulvipediculata Schlet.), fumi- 
pennis Say, insolita Cr., kennicottii Cr., prominens Banks, raui 
Rohwer (frontata Say?), robertsonii Fox, cotype, rufinoda Cr., 
Eucerceris zonatus Say, Philanthus politus Say, punctatus Say, 
ventilabris F.; Pompilidae: Ageniella accepta Cr., longula Cr., 
petiolata Cr., Anoplius illinoensis Rb., type, virginiensis Cr., 
Arachnoproctonus ferrugineus Say, Batizonus algidus Sm., Cero- 
pales bipunctata Say, elegans Cr., fraterna Sm., fulvipes Cr., 
robinsonii Cr., Cryptocheilus agenioides Fox, conicus Say, fulgifrons 
Cr., Episyron biguttatus F., Lophopompilus atrox Dh., philadel- 
phicus Lp., Planiceps feralis Cr., niger Cr., Poecilopompilus inter- 
ruptus Say, navus Cr., Pompiloides americanus By., divisus Cr., 
marginatus Say, subviolaceus Cr., Priocnemis arcuatus Banks, 
Priocnemoides fulvicornis Cr., terminatus Say, unifasciatus Say, 
Psammochares pretiosa Banks, relativus Fox, colype, scelestus Cr., 
tenebrosus Cr., Pseudagenia mellipes Say, Sophropompilus in- 
genuus Cr.; Sapygidae: Sapyga centrata Say; Scelionidae: Prosa- 
cantha illinoensis Ash. MS, Teleas lineaticeps Ash.; Scoliidae: 
Campsomeris confluenta Say, Elis interrupta Say, obscura F., 
thoracica Fox, type, 5-cineta F., Scolia bicincta F., nobilitata F.; 
Sphecidae: Ammobia ichneumonea L., nuda Fernald, pennsyl- 
vanica L., Chalybion caeruleum L., Chlorion caeruleum Dr., Iso- 
dontia apicalis Sm., macrocephala Fox, Palmodes dimidiata Dg., 
Priononyx atrata Lp., thomae F., Sceliphron cementarius Dr., 
Sphex gracilis Lp., nigricans Dh., pictipennis Walsh, procera Klug, 
vulgaris Cr.; Tenthredinidae (including Xyelidae): Dolerus 
aprilis Nr., arvensis Say (unicolor Bv.), bicolor Bv., sericeus Say, 
Hylotoma humeralis Bv., macleayi Leach, Macrophya epinota Say, 
pleuricincta Nr. (nebraskensis Rohwer), Macroxyela ferruginea 
Say, Monophadnus medius Nr., Nematus luteotergum Nr., verte- 
bratus Say, Opisthoneura albidovariata Nr., Pseudosiobla excavata 
Nr.; Thynnidae: Methoca stygia Say; Tiphiidae: Tiphia clypeata 
Rb., type, illinoensis Rb., type, inornata Say, punctata Rb., type, 
robertsoni Malloch, type, transversa Say, vulgaris Rb., type; 
Tryporylidae: Trypoxylon clavatum Say, frigidum Sm., triden- 
tatum Pe.; Vespidae: Polistes annularis L., pallipes Lp., rubi- 
ginosus Lp., variatus Cr., Vespula cuneata F., germanica F., 
maculata L., vidua Ss. 
