166 PROCEEDINGS OF THE NATIONAL MUSEUM vol. n* 



mandibles and mouth parts yellowish; clypeus extended at the middle 

 of apex into a distinct broad tooth, the sides of apex each side concave, 

 the concavity (slight) reaching to the side opposite the interior orbits; 

 clypeus 1.5 as broad as long; ratio of length of third and fourth anten- 

 nal joint is 17:14; upper interocular distance slightly less than (0.9) 

 that of the lower; head 1.3 as broad as long; lateral ocelli 1.6 as far 

 from eyes as each other; face, clypeus, and most of thorax silvery 

 pubescent; abdomen with very fine pubescence, pruinose; wings clear, 

 yellowdsh, the veins and stigma bright yellow; the longer spur of 

 posterior tibiae slightly more than 0.5 as long as its metatarsal joint. 



Length head and thorax 4.9 mm., abdomen 4.9 mm., forewing 7.3 

 mm., rear wing 5.1 mm. 



Holotype female: Rio Trinidad, Panama, Mar. 29, 1912, A. Busck 

 (USNM). 



21. Auplopus blatteus, new species 



Holotype female. Clypeus black, head and thorax bluish with 

 purple reflection; abdomen black, with brilliant bluish, violet and 

 purplish reflection; antennae yellow beneath, brown above; a preapical 

 band on mandibles and mouth parts bright yellow, apex of mandibles 

 reddish; a very faint narrow yellowish line on anterior orbits just 

 opposite antennae and extending about half way to foreocellus; 

 forecoxae mostly yellow beneath, the last two pairs mostly black 

 with tips yellow; foretrochanters mostly yellowish, last two pairs 

 black; all femora and first two pairs of tibiae yellow, the last pair 

 tibiae dark; foretarsi mostly yellow, the last two pairs yellowish 

 below dark above; clypeus of usual shape, with a haii-less, polished rim 

 on apex broadest in middle; clypeus 2.0 as broad as long; ratio of 

 lengths of thu^d and fom'th antennal joints is 14:12; upper interocular 

 distance (15) just sHghtly less than the lower; head 1.2 as broad as 

 long; foreocellus the largest, the laterals 1.5 as far from eyes as each 

 other; wings hyaline, veins, and stigma yellow (wings teneral not 

 fully developed). 



Length head and thorax 5.0 mm., abdomen 3.6 mm. 



Holotype female: Nicaragua (on banana), Aug. 25, 1933, J. Robins 

 Wood, MobHe 1446 (USNM). 



22. Auplopus roseus, new species 



Holotype female. Clj^jeus black, head and thorax dull green with 

 purpHsh reflection; abdomen black in certain light, with beautiful 

 brilhant bluish and violet in other light; only slightly silvery hau'ed on 

 clypeus and face and only slightly more across apex of propodeum 

 than elsewhere; only very few long hairs on body including the pro- 



