188 PROCEEDINGS OF THE NATIONAL MUSEUM vol. ii4 



Much less hairy; clypeus and front not noticeably hairy; basal segment of 

 abdomen with extremely minute if any hair; wings often evenly black- 

 ish 11 



11. Wings hyaline, no dark bands, stigma black, basal joint of antennae yel- 



lowish above and below; face and clypeus with short, golden appressed 



hair. Colombia paniquitus (Banks) 



Not so 12 



12. Head and thorax but little bluish; abdomen shining black; inner spur of 



hind tibia one-half of basitarsus. Peru peruanus (Banks) 



Head, thorax, and abdomen strongly bluish, iridescent on abdomen; inner 

 spur of hind tibia not one-half of basitarsus. Peru. 



caeruleosomus (Banks) 



13. Legs entirely black, with bluish reflection; whole body bluish with brilliant 



purple reflection; wings black; propodeum rather strongly, transversely 

 rugose across the dorsal and posterior surface. Peru. 



67. striatus, new species 



Legs not entirely black, if blackish, without rufous color and wings not black; 



except in one case with middle or posterior coxae or both rufous. . . 14 



14. Legs blackish, with lighter bluish or yellowish tint; fore wing with the front 



part of wing back through the cubital cells much darker than (dark yel- 

 lowish) the posterior part of wing which is hyaline; body not with pur- 

 plish reflection. Amazon 66. alarius, new species 



Some part of legs with rufous color 15 



15. The apical 0.65 of forefemora and the foretibiae rufous; base of forefemora 



and rest of legs black; antennae yellowish. Amazon. 



60. batesi, new species 

 Either middle or posterior femora or both rufous 16 



16. Femora not wholly rufous, front pair with only apical 0.3 rufous, the last 



two pairs with only apical 0.75 rufous and knees black, the rest black; 

 foretibiae rufous, all the rest of legs except the parts mentioned are black; 

 abdomen black, no trace of color; head and thorax bright green; wing 

 veins and stigma black; antennae black except on basal joints beneath, 



Venezula 57. cyaneus, new species 



Last two pairs femora completely rufous, and any dark color on forefemora 

 only shght amount at base 17 



17. Abdomen with very strong violaceous, or purplish reflection; and with coxae 



either partly rufous, or with strong violet reflection; thorax also with 



strong violet or purple reflection 18 



Abdomen almost black, at the most with hardly noticeable blue or purplish 

 reflection; and coxae all black, and not without strong reflection on thorax, 

 although color may be strong (if some reflection on thorax none on ab- 

 domen) 19 



18. Forecoxae yellowish at tip, last two pairs yellowish over whole ventral sur- 



face; all trochanters yellow; legs all yellow except apical four joints of last 

 pair tarsi are darker; abdomen with greenish reflection; antennae yellow. 



Peru 68. eriodes, new species 



Coxae all black, trochanters black except tips; first two pairs femora, tibiae 

 and metatarsal joints and posterior femora rufous; rest of legs dark; abdo- 

 men with strong violet reflection; antennae brown above, yellowish beneath. 

 Paraguay 65. puniceus, new species 



19. Strongly yellowish (slightly golden) appressed pubescence over most of 



head and thorax; antennae brown to blackish above, yellowish beneath; 

 wing veins and stigma yellowish 20 



