426 Timehri. 
The apical joints of the palpi are fuscous. 
SPHEGID.%. 
* Chlorion (Chlorion viridicoeruleum, Lep. 
Sphex hemiprasinus, Sichel; Kohl, Am. K.K. Hof. Mus. v, 189. 
Chlorion (Isodonta) costipennis, Lep. 
Cameron, Biol. Cent. Amer. Hymen, ii. 35, Pl. iu, f. 10; Kohl., Ann. Natur. 
Hof. Mus. Wien. 382, Fox, Proc. Acad. Sc. Phil. 1897; Fernald, Proc. 
U.Z. Nat. Mus. xxxi, 351. 
Chlorion (Proterosphex) ichneumoneum aurifluum, Perty. 
Sphex ichneumoneus var. aurifluus, Kohl. Ann. K.K. H.of Mus., Wien, 
V., 1890, 431. . 
Chlorion (Proterosphex) ichneumoneum aurifluum (Perty) Fernald, Proc. 
U.S. Nat. Mus. xxxi, 403. 
The specimen in the collection is typical aurifluum. 
Chlorion (Proterosphex) caliginosum, Erichson. 
Sphex caliyinosa, Erichson, Schomburgk, Reise in Guiana, iii, 589. 
Sphex erythroptera, Cam. Biol. Cen. Amer. ii, 30, Pl. iii, figs, 1, la. 
The specimen has the base of the wings black and the apex, if anything, 
lighter coloured, more hyaline, than usual. 
Chlorion (Proterosphex) neotropicus, Kohl. Ann. K. K. H.of. Mus. V., 420. 
Sceliphron vindex, Lep. 
Pelopeus vindex, St. Fargeau, Hymen. iii., 317, 17 ; Erichson, Fauna et Flora 
Brtt. Guy., ii'., 558, Saussure, Reise Novara, Hymen, 31. 
The metanotum is yellow with a broad line down the middle extending 
from the base to the top of the apical slope, its base being dilated ; a line runs 
from its base to the lower part of the metapleure which is entirely black, this 
back line forming 2 yellow pleural marks, of which the apical is the larger. 
Sceliphron histrio, Lep. 
Pelopeus histrio, St. Fargeau, l.c. 316, 16; Erichson, lc. 588, Saussure Le. 
32 There are 6 marks on the metanotum-Saussure’s var a, l.c. 
Podium (Dynatus) nigripes, West. 
Kohl. Abhand, d-k.k. Zool. Bot. Gessell, in Wien,i,. (4) 29. 
Podium giganteum Klug, Schomburg, Reise in Guiana, iii, 589. 
; * The generie Nomenclature is after Fernald, “ The Digger Wasps of North America and 
the West Indies belonging to the sub family Chlorioninz.”—Proc. U.S. Nat, Mus., 1906, 
291, et seq. 
