NEW SPIDER WASPS — DREISBACH 169 



Holotype female: Barro Colorado Island, C.Z., May 14, 1939, 

 Zetek 4453, lot no. 12571 (USNM). 



27. Auplopus minusculus, new species 



Holotype female. Clypeus, face and inner orbits to above antennae 

 black, this area contrasting with the not dense, silvery, prostrate, 

 white pubscence, and the long haks on apical half of clypeus; front 

 and vertex shining green, with just a very faint pm"ple iridescence; 

 thorax green on dorsum and sides of thorax (except propodeum) 

 rather bright green with purple nuance in reflected light; the dorsum 

 and sides of propodeum purple with bluish reflection; scutellum and 

 postscutellum black; abdomen a brilliant violet; wings hyaline, 

 veins and stigma yellowish; antennae black, slightly brownish below; 

 coxae violet, trochanters blackish suffused with yellow; femora 

 and foretibiae yellow; middle and posterior tibiae and aU tarsi black; 

 clypeus as usual, a little more than 1.5 as broad as long; head 1.3 

 as broad as long; upper interocular distance (12) equal to lower; 

 ratio of lengths of third and fourth antennal joints is 9:8; a very 

 smaU species; the tip of abdomen lost. 



Length about 6.0 mm. 



Holotype female: Paraiso, C.Z., Panama, Feb. 7, 1911, August 

 Busck (USNM). 



28. Auplopus magnus, new species 



Holotype female. Clypeus and face black with appressed, silvery 

 pubescence; front, vertex, and thorax with dull greenish, with only the 

 very faintest pm'plish tinge in certain light; coxae black (with bluish 

 green reflection), fore trochanter yellow underneath, the others all 

 black; aU femora, foretibiae and foremetatarsal joint reddish yellow, the 

 rest of legs dark; abdomen with violet and purple reflection; thorax 

 with prostrate pubescence over most of surface; clypeus 1.6 as broad 

 as long; ratio of lengths of third and fourth antennal joints is 22:17; 

 upper interocular distance (20) is 0.9 the lower; head 1.3 as broad as 

 long; lateral ocelli 2.0 as far from eyes as each other; wmgs hyaline, 

 veins and stigma black. 



Length 12.5 mm. 



Holotype female: Costa Rica, October (USNM). 



29. Auplopus callainus, new species 



Holotype female. Head black; the whole thorax green, tending to 

 a bluish green, shining, with no purple iridescence; abdomen black in 

 certain light, with a brilliant blue reflection, with a faint trace of 

 purple; clypeus and face with no silvery pubescence; thorax with 

 considerable upright light-colored hair, especially on propodeum, 



638880—62 3 



