NEW SPIDER WASPS — DREISBACH 209 



parts, and the mandibles (except extreme base black and extreme 

 apex red), yellowish white; wings hyaline, but shining in reflected 

 light, veins and stigma black; clypeus with a broad transparent rim 

 across front, and across the sides which slope inward toward front of 

 clypeus, the truncate apex only 0.75 as wide as base; clypeus 2.0 as 

 broad as long; the lower interocular distance (70) equal to the upper 

 and the middle interocular distance 0.58 the transfacial; the interior 

 orbits parallel, very slightly bowed just before the vertex; head slightly 

 broader than wide; lateral ocelli not quite 2.0 as far from eyes as 

 from each other; ratio of lengths of first four antenna! joints 

 is 30: 15:40:35; parameres of genitalia very broad; a very small trian- 

 gular area on the base of subgenital plate which is closed before the 

 middle and a narrow sharp ridge extending to apex. 



Length head and thorax 4.0 mm., abdomen 3.3 mm., forewing 

 5.9 mm., rear wing 3.0 mm.; length genitalia 0.73 mm., width 0.4 

 mm., length subgenital plate 0.77 mm., width 0.46 mm. 



Holotype male: Nova Teutonia, Brazil, Sept. 11, 1949, Fritz 

 Plaumann (Cal.). 



78. Auplopus pratentiSf new species 



Figures 70, 71 



Holotype male. Front and vertex a faint metallic greenish tint; 

 thorax with green and blue tints, the mesonotum and sides with a 

 strong purple reflection; abdomen slightly bluish, the sides of first 

 tergite yellowish and the last tergite white; coxae and trochanters 

 mostly blackish, the front pair coxae yellowish beneath; all femora 

 (except extreme base is black) and first tw^o pairs tibiae yellowish; 

 last pair tibiae slightly dark rufous at base and beneath, rest darker; 

 first metatarsal joint and most of second, yellowish; the rest of first 

 two pairs and all the last dark; antennae yellowish beneath, black 

 above; the first joint white beneath; a white stripe across front of 

 clypeus and the sides white on about 0.6 of breadth of clypeus; face 

 white except a black streak below antennae, the white touching 

 antennae on sides and the color narrowing to a point on inner orbits 

 a little above antennae; mandibles black at base, yellow in middle, 

 red at apex; mouth parts dull yellowish; underside of thorax same 

 color as coxae, a shining light blackish; a transparent rim across apex 

 and sides of clj^peus, apex truncate and 0.7 as broad as base of clypeus; 

 clypeus 2.3 as broad as long; the lower interocular distance (70) 

 equal to the upper but the anterior orbits just below vertex are concave 

 giving the impression that the upper orbits are convergent, middle 

 interocular distance almost 0.6 the transfacial; head more than 1.3 as 

 broad as long; ratio of lengths of fii-st four antennal joints is 

 30:16:45:45; lateral ocelli slightly farther from eyes than from each 



