NEW SPIDER WASPS — DREISBACH 195 



against the reddish yellow background; a very large species for the 

 genus. 



Length of head and thorax 6.0 mm., abdomen 6.6 mm., forewing 

 6.6 mm., rear wing 9.6 mm. 



Holotype female: Amazon, H. W. Bates (Munich Mus.). 



Paratypes: l,Amazonas, Santarem, Brazil, W. Bates (USNM); 

 1, Amazon, W. Bates (RRD). 



The paratypes vary somewhat in the amount of dark color. One 

 (USNM) has the whole front and vertex a dull green and the color on 

 thorax has a greenish tinge. The other paratype (RRD) has a greenish 

 tinge on head, and more surface colored than the type but not so 

 much on thorax, that on propodeum only as a light purple streak, the 

 coloration of wings and the other characters are the same. 



59. Auplopus argentinensis, new species 



Holotype female. Head opaque black with the faintest greenish 

 tint on the front; thorax gi-een or violet depending on the incident 

 light; abdomen shining through a fine prostrate pubescence, with a 

 bluish violet sheen (very delicate); all coxae black, apex underneath 

 3"ellowish; all trochanters, femora, and tibiae yellowish; the tarsi with 

 first joint yellowish the rest of joints becoming darker as they approach 

 tip; clypeus and face heavily silvery sericeous, the thorax not quite so 

 much so; clypeus projecting in front as usual, and with a polished 

 rim on the extension; the front rim of clypeus slightly yellowish; 

 clypeus 1.7 as wide as long; upper interocular distance (90) 0.9 as 

 long as the lower; head 1.2 as broad as wide; interocular distance 

 0.55 the transfacial; lateral ocelli 1.5 as far from eyes as from each 

 other; ratio of length of first four antenna! joints is 40:20:90:70; 

 third antennal joint is equal to the vertex width; pronotum slightly 

 angulate on posterior border; the dorsal surface of propodeum finely 

 transversely ridged as well as the metapostnotimi; wings hyaline 

 (slightly yellowish), veins yellow. 



Length head and thorax 5.3 mm., abdomen 4.3 mm., forewings 9.2 

 mm., rear wings 6.6 mm. 



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



60. Auplopus batesi, new species 



Holotype female. Clypeus and face black; front, vertex and tho- 

 rax, and dorsal surface of coxae from dull green to a rather brilliant 

 green; abdomen black with a bluish-green luster shining through the 

 fine, whitish vestiture; antennae wholly dark yellow; all the legs 

 black except the apices of the foretrochanters, the apical 0.75 of fore- 

 femora, and the foretibiae; the face and clypeus strongly silvery 

 pubescent, as is the whole body; mouth parts, and mandibles except 

 base, yellowish; clypeus rounded in front, almost twice as wide as 



