NEW SPIDER WASPS — DREISBACH 177 



41. Auplopus aeruginosas, new species 



Figures 18, 19 



Holotype male. Clypeus and face slight!}^ reddish tinted, the outer 

 edges of clypeus with an obscure whitish mark; head dull metallic 

 green, the dorsum of thorax with a much brighter shining green, sides 

 of thorax black with a very slight greenish tinge; abdomen black, 

 with a light yellowish streak on sides of first tergite; first two joints 

 of antennae yellow above, the first three yellow below, rest of joints 

 black; joints of antennae cylindrical for first seven or eight joints 

 but the rest slightly concave at joints; interior orbits with a rather 

 broad yellowish band from clypeus to just above antennae; mouth 

 parts slightly yellowish; all coxae a dark rufous, shining; all tro- 

 chanters, all femor and fore tibiae, yellow; tibiae of middle and hind 

 legs dark, lighter underneath and yellowish at apex; tarsi all dark; 

 wings h3^aline; the basal vein basad of transverse, in forewings, by 

 less than length of transverse, the veins in rear wmgs disjointed about 

 same amount; clypeus with a hairless rim in middle of front margin 

 0.6 length of margin, each side of this extension the margin is slightly 

 concave, the clypeus does not extend under eyes; clypeus 1.5 as broad 

 as long; ratio of lengths of third and fourth antennal joints is 9:9; 

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

 long; body covered with a slight, silvery and upright pubescence; 

 parameres of genitalia very narrow for the genus, about 1.5 as long 

 as volsellae; volsellae with a long concavity at apex; subgenital plate 

 wuth a medium width triangular area at base extending to about 

 middle of plate, a sharp ridge from there to apex. 



Length head and thorax 3.6 mm., abdomen 3.3 mm., forewings 6.6 

 mm., rear wings 5.2 mm.; length genitaha 0.66 mm., width 0.33 mm., 

 length subgenital plate 0.66 mm., width 0.26 nnn. 



Holotype male: Rio Trinidad, Panama, Mar. 16, 1912, A. Busck, 

 P-14 (USNM). 



42. Auplopus argentinus, new species 



Figures 8, 9 



Holotype male. Clypeus and face faded white, on outer third so 

 densely covered with prostrate silvery pubescence that the integument 

 is hardly visible (only in certain light) ; front above antennae not quite 

 half way to foreocellus a shining green, rest of front behind it and the 

 vertex a shining black; in higher magnification (75x) appearing rough 

 by reason of the very fine dense punctures; dorsum of thorax and 

 posterior hah sides black, only the sides of thorax in front of fore wing 

 greenish; the surface of mesonotum similar to head; abdomen black, 

 apex of last tergite white, sides of fu-st tergite yellowish; fii-st pair 

 coxae yellow, second pau' yellow with a black streak on upper outer 



