140 OrpER—HYMENOPTERA. 
palpi (fig. 4c) 4-jointed, and scarcely longer than the lobe; the mentum is subcordate, the labium obtusely 
pointed at the tip, and the labial palpi small and 8-jointed, the middle joint the shortest (fig. 4d¢). The hind 
femora are moderately incrassated, without any spine on the under margin; the hind coxw are produced into 
a small spine near the tip of the outer margin. The antenn are inserted just above the mouth widely apart, 
the basal joint received, when at rest, in an oblique channel of the face between the eyes. 
Species 3—EUCHRYSIA PRASINA. 
Capite et thorace viridibus, punctatissimis ; scutello concolori punctis majoribus rotundatis crebrissime 
impresso ; metathorace et abdomine nitidis viridibus ceruleoque tinctis; pedibus viridibus ; tarsis nigris, inter- 
mediis articulo basali parum crassiori subalbido, femoribus posticis subclavatis, apicem versus subtus subemargi- 
natis ; alis hyalinis, venis nigricantibus. 
Long. corp. lin. 3; expans. alar. antic. lin. 44. 
Habitat; in partibus Septentrionalibus Nove Hollandie. In Mus. Hopeiano Oxoniz. 
Grnus—CHRYSEIDA. 
(Spinola in Guérin, Magasin de Zoologie, 1840, Ins. pl. XLII.) 
Species I—CHRYSEIDA SUPERCILIOSA. Spinola. 
The type of this Genus, from Cayenne, is described as a male, and is remarkable for the great develop- 
ment of the prosternum, which is concave on its upper side, ‘formant une espéce de cuiller au fond de laquelle, 
la téte se retire en partie quand elle se repose, et ov elle peut enfoncer toutes les parties de la bouche.’ 
The antenne are 11-jointed; the second joint is, however, very minute, the five following cylindrical and 
elongated, and the four terminal ones much shorter, forming an elongated mass. 
Species 2—CHRYSEIDA AMAZONICA. 
Puate XXVI, Fic. 5. 
Capite obscure cupreo, punctato ; fronte in tubercula duo porrecta truncata, inter oculos, producta (fig. 5 a) ; 
thorace rude punctato viridi ; abdomine nitido chalybzo, viridi paullo tincto; antennis nigris, articulo basali fulvo ; 
pedibus 4 anticis nigris, geniculis apiceque tibiarum luteis; tibiis 2 posticis brunneis; tarsis omnibus luteis 
apice nigricantibus; alis pallide flavescentibus, nubila pallida mediana magis flavescenti. 
Long. corp. lin. 3; expans. alar. antic. lin. 5. 
Habitat ; Amazonia (Bates). In Mus. Hopeiano Oxonie. 
The antennz in the specimen figured are 11-jointed, but the second joint is very short, the third annuli- 
form and almost indistinct, the four following joints large and of equal size, and the remaining three forming 
an oval mass not larger than the preceding joint. 
Grnus—POLYCHROMA. 
Chaleodecti Wik. affine: corpus crassum; caput antice excavatum; oculi magni; antenne mediocres 11- 
articulate, articulo primo longo, secundo precedentis dimidium longitudine fere quanti, tertio dimidium secundi, 
ultimis 8 sensim crassioribus, ultimo truncato, angulo supero in spinam brevem terminato ; collare minutum ; 
parapsides mesonoti bene distincti; postscutellum magnum; ale antice vena radiali e subcostali haud valde 
remota; pedes 4 antici inermes; postici 2 coxis magnis, femoribus clavatis, subtus spinosis, tibiis curvatis ; 
abdomen ovale apice acuto. 
