NEW SPIDER WASPS — DREISBACH 165 



19. Auplopus purpureus, new species 



Holotype female. Clypeus, head, and thorax rather a bright gi-een, 

 with purple reflection; abdomen black in certain light, but mostly a 

 brilliant violet, purple, and some bluish reflection, except pygidium 

 which is dark yellowish, same color as legs; antennae rather bright 

 yellow beneath, dark brown to black above; mandibles black on 

 basal half, j^ellow apically, mouth parts dark yellowish; coxae and 

 trochanters black with green reflection ; all femora and first two pairs 

 of tibiae dark yellow; posterior tibiae and all tarsi black, the pos- 

 terior dark reddish in certain light with purple reflection ; clypeus and 

 face strongly sericeous pubescent, the thorax pubescent all over (not 

 nearly as strongly as clypeus and face), and the propodeum across 

 apical third almost as strongly as face and clypeus; clypeus usual 

 shape, with a shining rather wide yellowish apical rim, 2.0 as broad as 

 long; head 1.2 as broad as long; ratio of thu'd and fourth antennal 

 joints is 13:11; upper interocular distance (16) equal to the lower; 

 foreocellus the largest, the laterals almost 1.5 as far from eyes as each 

 other; wings hyaline, tegula, veins, and stigma dark; the two recur- 

 rent veins meet second and third cubital cells respectively at the 

 middle and at basal thu-d; longer spur posterior tibiae not quite half 

 as long as its metatarsal joint. 



Length head and thorax 4.6 mm., abdomen 4.6 mm., forewing 7.2 

 mm., rear wing 5.3 mm. 



Holotype female: Barro Colorado Island, C.Z., January-March 

 1944, Zetek 5125 (USNM). 



20. Auplopus violaceus, new species 



Holotype female. Clypeus brown, greenish each side; rest of head 

 and thorax dull greenish on dorsal surface, brighter greenish on sides 

 and on propodeum; the thorax and propodeum with beautiful purple 

 reflection; abdomen with blue, violet, and purple reflection, almost 

 black without the strong brilliant reflection; a yellowish stripe on 

 anterior orbits from base of clypeus to halfway between base of 

 antennae and the anterior ocellus; antennae reddish brown beneath, 

 almost black above, the four apical joints flattened; coxae yellowish 

 beneath, light colored on sides and beneath, the sides and dorsal 

 surface strongly reflecting violet; trochanters blackish, the forefemora 

 dark-colored except the yellow apex; the last two pairs of femora 

 dark yellowish, with base and apex blackened; foretibiae bright 

 yellow like apex of femora, the last two pairs much darker colored, a 

 dark reddish; the foretarsi dark yellowish, the last two pairs just 

 about the color of tibiae (dark reddish) but slightly darker; apex of 



