470 PROCEEDINGS OF THE NATIONAL MUSEUM. vol.41. 



TRICHOGORYTES ARGENTEOPILOSUS, new species. 



In Fox's table to North American Gorytes this species would run to 

 jndifrons Fox, but is not closely allied to that species. 



Female. — Length 7 mm. Slender; anterior margin of clypeus 

 slightly emarginate anteriorly; head with rather large, distinct, sepa- 

 rate punctures; antennae slender, nearly filiform, third joint distinctly 

 longer than fourth, apical joint acuminate; thorax finely sculptured; 

 mesoscuto-scutello scuture foveolate; abdomen very fmely granular; 

 pygidium but little longer than the basal width, rounded apically, 

 with a raised glaberous, medial line; radial cell obtusely rounded 

 apcially; legs feebly spined, tibiae with only three or four spines. 

 Black: antennae beneath (apical joints almost entirely), tegulae and 

 anterior knees yellow; abdomen dull red; legs below coxae fulvo- 

 ferruginous, four anterior femora black; entire insect (including legs) 

 except bases of second and following abdominal segments densely 

 clothed with appressed, silvery pubescence; wings clear hyaline, 

 iridescent; venation yellowish brown, costa black. 



Hot Springs, Arkansas. One female collected June 26 by Schwarz 

 and Barber. 



Type.— Cat. No. 14169, U.S.N.M. 



Family PHILANTHID^. 

 Genus CERCERIS Latrielle 



CERCERIS GANDARAI, new species. 



Related to Cerceris occipitomaculata Packard, but may be distin- 

 guished from that species by the different sculpture of the propodeal 

 inclosure, the lower part of mesoepimeron shining and 

 I ^_^^^ 1 practically impunctate, black first dorsal segment, etc. 



Propodeal inclosure well defined, slightly foveolate 

 ^'^DiATioN ^oF laterally, with small, separate, uniform punctures. 

 THE APICAL Male. — Length 8 mm. Clypeus subconvex medially, 

 V E N T E A L g^pg-jj. truncate, lateral angles subdentate ; head and thorax 



PLATEOF \ '_^ C>^ ^ 7 



c E K c E R I s with separate, distinct, median-sized punctures ; postocel- 



GANDAI 

 ROHWER. 



GANDARAI j^^j. ^ij^Q dlstluctly sliortcr than the ocellocular line 



subequal with the ocelloccipital line; antennal joints 

 short, the third distinctly longer than fourth, apical joint not hooked, 

 obliquely truncate apically; lower half of mesoepisternum smooth, 

 shining, practically impunctate; metapleurae finely granular; legs 

 normal ; abdomen dorsally more sparsely punctured than the thorax, 

 ventrally practically impunctate; pygidii:fm punctured like abdomen 

 dorsally, sharply defined, truncate apically; apical ventral plate 

 emarginate as in figure 9. Black; face to a little above the antennae, 

 mandibles (except piceous apices), four anterior legs below apices of 

 femora, posterior trochanters, femora except apex, base of tibiae and 



