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[Vol. 89 
notauli; scutellum punctate-striate with anterior margin foveate, pos- 
terior margin with 13 evenly spaced ridges; mesopleuron with fine 
punctures, 1-2 puncture diameters apart, upper half with 9 lon- 
gitudinal ridges; hypoepimeron ridged; propodeum finely striate 
laterally, enclosure with deep medial groove, foveate above, 
punctate-striate medially, transversely ridged and foveate below; 
terga I V densely and finely punctate, punctures 0.5 puncture 
diameter apart or less; tergum VI with large, contiguous, almost 
foveate punctures; pygidial ridge sharp, abruptly notched sub- 
medially, terminating in a sharp apical projection, nearly obscured 
by dense papillae-like setae (figs. 7, 8); sternum 1 integument rough, 
irregular; sternum II punctures about 1 puncture diameter apart 
laterally, almost impunctuate medially, sterna III-V impunctate, 
except transverse subapical punctate strip; sternum VI triangular, 
basal half impunctate, apical half densely punctate. Body black, 
except yellow scape, flagellum beneath, medial mandibular spot, 
pronotal lobe and sublateral dorsal spots, scutellum laterally, 
metanotum medially, T II lateral spot, apices of fore and mid- 
femora, most of tibiae and tarsi. Pubescence sparse and pale, except 
dense silvery appressed pubescence on clypeus, scapal basin and 
gena on both sides of carina. 
Male: Length 4.5 to 5.5 mm; same as female, except F-I slightly 
wider than long; flagellomere II slightly longer than wide, deeply 
indented beneath; flagellomere III about as long as wide (fig. 2); 
scutum with longitudinal ridges, densely punctate; sterna closely 
punctate, punctures 1 puncture diameter apart or less. Male geni- 
talia as in figs. 5-6. 
Holotype female: Barro Colorado Island, Zona del Canal, Pan- 
ama, August 30, 1978, R.B. and L.S. Kimsey (USNM). Paratypes, 
13 females: same data as type, except July 17, 1976 (UCD), Sep- 
tember 12, 1978 (UCD) and C. and M. Rettenmeyer, April 20, 1963 
(UCD); Costa Rica, Turrialba (MCZ, USNM); Colombia, Magda- 
lena, 10-15 km e Santa Marta, November 26, 1974, M. Cooper 
(BMNH); Venezuela, Zulia, Rosario, June 14, 1976, A.S. Menke 
and D. Vincent (USNM); Trinidad: St. George, St. Augustine, June 
and August 1976, F.D. Bennett and J.S. Noyes (BMNH); St. 
Andrew, Oropuche, June 28, 1976, J.S. Noyes (BMNH). Two 
males, which I am not designating as paratypes, were from: Brazil, 
Sao Paulo, Ribeirao Preto, January 7, 1968. G.E. Bohart (UCD); 
