NEW SPIDER WASPS — DREISBACH 207 



length of first four antenna! joints (rest lost) is 30:15:43:40; the 

 lateral ocelli only slightly farther from eyes than from each other; 

 wings hyaline. 



Length of head and thorax 3.4 mm., abdomen 3.3 mm., forewings 

 6.6 mm., rear wings 4.6 mm.; length genitalia 0.73 mm., %vidth 0.46 

 mm., length subgenital plate 0.86 mm., width 0.46 mm. 



Holotype male: Capilla del Monte, Cordoba, Argentina, Prof. 

 Hoseus (Munich Mus.). 



75. Auplopiis flavicrus, new species 



Figures 64, 65 



Holotype male. Front, vertex, and thorax greenish, the thorax 

 with brilliant purple shades; basal segment of abdomen yellowish 

 with some black color on apical dorsal half; rest of abdomen blackish 

 (with bluish reflection) except for a yellowish streak on middle of 

 sides of segments 3 to 5; mouth parts and mandibles yellow; clypeus 

 yello^\dsh on sides and apex with basal, middle part blacldsh; anterior 

 orbits to the antennae broadly yellow, face blackish; under side 

 of head black; antennae with the first two joints yellowish the rest 

 black; the legs beginning with coxae completely bright yellow except 

 for last two joints of front pair and all the tarsal joints of last two 

 pairs, which are dark; clypeus 1.7 as wide as long, the sides of clypeus 

 converging in front so that apical width only 0.7 the basal width; 

 a narrow transparent rim on sides and apex of clypeus; head 1.2 as 

 wide as long; middle interocular distance 0.53 the transfacial distance; 

 upper interocular distance (70) is equal to the lower; lateral ocelli 

 1.3 as far from eyes as each other; ratio of lengths of first four joints 

 of antennae is 40:15:55:50; silvery pubescence on clypeus, face, sides 

 of thorax and across apex of propodeum; long white hair under head 

 and on dorsal surface of propodeum; wings h3^aline, venation as usual; 

 parameres of genitalia extemely slender for the genus, especially in 

 apical half; cross-ridge on parameres about opposite apex of aedeagus; 

 parapenial lobes rather broad; genitalia distinctive; subgenital plate 

 with basal triangle narrow, closed above middle of plate. 



Length of head and thorax 4.6 mm., abdomen 4.5 mm., forewing 8.6 

 mm., rear wing 5.5 mm.; length genitalia 0.56 mm., width 0.60 mm., 

 length subgenital plate 0.66 mm. (without stem), width 0.33 mm. 



Holotype male. Kartabo, Bartica District, British Guiana, July- 

 August 1920 (MCZ). 



76. Auplopus subaiirariiis, new species 



Holotype female. Body blackish with faint shades of colors; head 

 black with faint greenish tinge on vertex in certain light; thorax more 

 strongly greenish and bluish even in incident light; abdomen slightly 



