36 HYMENOPTEBA. 



1. Hylotoma basimacula. 



Caerulea, nitida, pilosa, antennis nigris, abdominis basi tibiisque (apice excepto) albis, alis violaceis. 

 Long. 13 millim. 



Hab. Panama, Bugaba (Champion). 



The antenna? are thick, semiclavate, longer than the thorax, shortly pilose and 

 grooved. The lower ocellus is placed in the frontal groove, which is wide and shallow 

 and ends in the middle of the face, where' its apex is not margined ; the face below it 

 is covered with scattered white hair. The clypeus is incised at the apex. The blotch is 

 broad, and forms a conspicuous white mark. The wings are rather long ; in the middle 

 of both wings at the base is a small hyaline space ; the second cubital cellule is a 

 little shorter than the upperside of the third, and longer than its lower ; the third is 

 produced on the upperside ; the third transverse cubital nervure almost touches the 

 apical cellule ; the second recurrent nervure is almost interstitial ; the transverse 

 median is received close to the basal third of the cellule. 



This species is allied to H. eximia ; but it is easily separated from it by the totally 

 violaceous wings and black tarsi and apex of the tibiae. The two are quite different 

 in coloration frem the other Central-American species. 



2. Hylotoma eximia. 



Hylotoma eximia, Kirby, List of Hymen, i. p. 65, t. 5. f. II 1 . 

 Hab. Mexico, Orizaba 1 . 



3. Hylotoma dorsalis. 



Hylotoma dorsalis, Klug, Jahrb. i. 1834, p. 236. 44 l ; Norton, Proc. Amer. Ent. Soc. i. p. 67, 

 iv. p. 78; Kirby, List of Hymen, i. p. 69 2 . 



Hab. Mexico 1 , Oaxaca 2 ; Guatemala, Dueiias, Capetillo (Champion). 



Klug's description is very laconic, and I am not quite clear as to the specimens from 

 Guatemala being identical with H. dorsalis. The antennae are densely pilose and 

 slightly furrowed. The frontal area is flat behind, and without a clear border there ; 

 beyond the ocellus the border is distinct, and the area is there moderately deep, espe- 

 cially at the apex ; the antennal fovea is long, and tapers gradually to a point ; the base 

 is deeper than the apical half. The wings are blackish ; the second recurrent nervure 

 is almost interstitial ; the transverse median nervure is received beyond the middle of 

 the cellule. The head, thorax, and abdomen are bluish black (Klug describes these 

 parts as " black " in his II. dorsalis) ; the pronotum, tegulse, mesonotum with scutellum 

 red ; the metathorax is black. 



Norton seems to think that H. dorsalis is identical with H. scapitlaris, Klug, a com- 

 mon North- American species ; but the specimens I have described are certainly different 

 — differing from H. scapularis in their longer antennae, in there being no " large spot 



