196 PROCEEDINGS OF THE NATIONAL MUSEUM vol. lu 



long; lower and upper interocular distance equal; the interocular 

 distance 0.55 the transfacial distance; head 1.25 as broad as long; 

 ratio of length of first four antennal joints is 40:20:70:60; lateral 

 ocelli about 1.2 as far from eyes as each other; pronotum transverse 

 on posterior margin; propodeum with very fine transverse wrinldes; 

 wings hyaline; pygidium polished and shining. 



Length head and thorax 5.3 mm., length abdomen 5.0 mm., length 

 forewing 8.0 mm., rear wing 5.9 mm. 



Holotype female: Amazonas, W. Bates (Munich Mus.). 



61. Auplopus argutus, new species 



Holotype female. Clypeus, face, and head black; thorax with 

 rather brilliant violet or purplish sheen in reflected light with traces 

 of green and blue; abdomen almost black with hardly a trace of re- 

 flected color; coxae and trochanters black with the apices of tro- 

 chanters slightly yellowish; all femora, tibiae, and metatarsal joints 

 bright shining (hence name) yellowish, except that last two pairs of 

 tarsi are blackish on apex; the forefemora are black just at base; 

 antennae black, lighter underneath; a few long whitish hairs scattered 

 over body, the propodeum with numerous long upright hairs; the face 

 and outer posterior corners of propodeum with dense, silvery, shining 

 pubescence; labial palpi yellowish; mandibles black with reddish 

 tips; clypeus rounded on front margin with a narrow hairless rim, the 

 width 2.0 times its length; head 1.15 times as wide as long; interocular 

 distance is 0.54 tunes the transfacial; upper interocular distance (90) 

 equal to the lower; ratio of lengths of fu-st four antennal joints is 

 40:15:75:60, thus the second and thu*d joints are equal to the vertex 

 width; lateral ocelli about 1.5 as far from eyes as from each other; 

 pronotum transverse on posterior edge; head and dorsum of thorax 

 finely, densely punctured; propodeum with very fine transverse 

 ridges; wings hyaline, venation about as usual, except the second 

 intercubital meets third cubital cell a little farther out than usual, 

 about the apical 0.3; pygidium smooth and shinmg. 



Length head and thorax 6.0 mm., abdomen 4.7 mm., forewing 8.6 

 mm., rear wing 6.6 mm. 



Holotype female: Nova Teutonia, Santa Catarina, Brazil, Feb. 1, 

 1956, Fritz Plaumann (USNM). 



Paratypes: 1, Olivos, Pro v. Buenos Aires, Argentina, March 1951, 

 M. A. Fritz (RRD); 1, Corupa, Santa Catarina (Harrsa Humbolt), 

 Brazil, October 1946, A. Mailer (AMNH); 6, Nova Teutonia, Brazil, 

 Fritz Plaumann; Mar. 2 and 3, 1950, Apr. 27, 1950 (RRD), Mar. 4 

 and 23, 1951, Mar. 29, 1951, Mar. 24, 1950, Apr. 23, 1951 (Cal.). 



