162 PROCEEDINGS OF THE NATIONAL MUSEUM vol. ii4 



the extreme base dark and also the knees of last pair; foretibiae yel- 

 low, rest dark; basal jomt of foretarsi slightly yellowish, the other 

 joints and last two pairs of tarsi dark; visible part of men turn reddish, 

 apex of mandibles reddish; the basal two joints of labial palpi very 

 much thicker (3 to 4 times) than the three apical joints, basal brown, 

 apical yellowish; clypeus as usual, 1.9 as broad as long; head almost 

 as long as broad; ratio of length of third and fourth antennal joints 

 is 19:14; upper interocular distance (22) only 0.85 that of lower, 

 eyes slightly converging above; foreocellus the largest, laterals 1.5 

 as far from eyes as each other; head and mesonotum very finely and 

 densely punctured; wings yellowish, veins and stigma black, glistening 

 in reflected light, with purple u'idescence in cubital cells (generally 

 this color is green); the fii'st tergite with mediiun length, upright 

 white hair; the whole abdomen covered with very fine, prostrate 

 pubescence; longer spm- posterior tibiae only 0.33 the length of 

 metatarsal joint. 



Length head and thorax 7.0 mm., abdomen 6.0 mm., forewings 11.6 

 mm., rear wings 8.4 mm. 



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

 1944, Zetek 5125 (USNM). 



Paratypes: 6, same data as holotype (5, USNM) (1, RRD); 5, 

 Barro Colorado Island, C.Z., April and May 1942, Zetek 1942 and 

 1953 (USNM). 



15. Aiiplopus guatemalensis, new species 



Holotype female. Clypeus, face and antennae black, front, vertex, 

 mesonotum and pronotum faint dull green, sides of thorax and pro- 

 podeum a brighter stronger green, slightly bluish; abdomen black 

 with faint bluish reflection; apex of mandibles reddish, mouth parts 

 dark (apical joints of labial palpi brownish); coxae and trochanters 

 black; all femora, foretibiae and middle tibiae reddish; posterior tibiae 

 and all tarsal joints dark; clypeus, face, and thorax with rather in- 

 conspicuous prostrate silvery pubescence, upright, white hairs on 

 propodeum, few elsewhere; clypeus normal, 2.0 as broad as long; a 

 hairless, polished rim around apex, widest in middle; eyes converging 

 above, the upper interociflar distance (17) 0.85 that of lower; head 

 1.2 as broad as long; ratio of length of third and fourth antennal 

 joints is 14:11; anterior ocellus the largest, laterals 1.25 as far from 

 eyes as each other; wings hyaline, veins and stigma black; longer 

 spur posterior tibiae half as long as its metatarsal joint. 



Length head and thorax 4.6 mm., abdomen 4.6 mm., forewing 8.0 

 mm., rear wing 5.6 mm. 



