1965] 
Porter — Picrocryptoides 
171 
all other genera most conspicuously by the following combination of 
characters: the strongly-raised, pyramidal, nose-like clypeus; the 
inflated ocellar area; the broad, lappet-like dorsal prolongation of 
the epomia; the unusually short radial cell and the strong basal expan- 
sion of the petiole. Other characteristic features, restricted however to 
the female, are the very long malar space, grossly punctate second 
gastric tergite, and the short, stout ovipositor without nodus or notch. 
Various other groups may have one or two of these characters but 
none approaches having the whole series. Indeed, Picrocryptoides , 
although obviously a derivative of Trachysphyrus combines so many 
distinctive features that it occupies an isolated position within its 
generic group. 
generic name: Picrocryptoides is derived from the Greek adjective 
pikros or sharp and from cryptoides or Cryptus- like, in reference to 
the pointed clypeus and to Cryptus , a generic name which has com- 
monly been used for many species of the Trachysphyrus Group. 
species: Two species, both new, are available in the material before 
me. These are described below. 
1. Picrocryptoides willinki n. sp. 
Figures 2, 3, 5, 7, and 8 ; map 1. 
types: Holotype: Cordoba, Argentina, Davis. In Museum of 
Comparative Zoology, Cambridge, Massachusetts. MCZ. No. 31165. 
Paratypes: (4 cf cf and 9$$) from Republica Argentina (Cordoba: 
Cosquin, Sierra de Cordoba, March 1-9, 1920, Cornell University 
Expedition; Dto. San Martin, January 22, I95°> D. Lopez; Yac. 
Calamuchita, January 17, 195b, A. Willink; Argiiello, November 14, 
1955, A. Giorgetta; Capital, December 1955, A. Giorgetta; San 
Luis: San Martin, January 31 to February 3, 1958, Willink and 
Tomsic; Santa Fe: Rosario, Davis; Buenos Aires: Felipe Sala, 
January 1954, F. H. Walz; La Pampa: Macachia, January 1951, 
F. H. Walz) ; in Museum of Comparative Zoology, Cambridge, 
Massachusetts; Cornell University Collection, Ithaca, New York; 
Townes Collection, Ann Arbor, Michigan; Instituto Lillo, Tucuman, 
Republica Argentina. 
female: Color: head, thorax, coxae, propodeum, and gaster dull 
metallic blue-green with scattered obscure purple reflections; antenna 
dark blackish-brown, becoming somewhat paler toward apex, especially 
below; apex of mandible brownish-piceous ; trochanters shining-black, 
narrowly brownish apically; fore- and mid-legs bright, pale orange, 
tarsi brownish or blackish-stained; hind-femur bright pale orange, 
hind tibia and tarsus moderately dark brown to blackish ; wings rather 
