11!) PROCEEDINGS OF THE NATIONAL MUSEUM. vol.xxih. 



TAHLE OK (iEXERA. 



FirKt cubital aiKl firt^t discoidal ct'll.s confluent, v<A separated, the first abscissa of the 

 cul )itus absent 2 



First culjital and first discoidal cells distinctly separated, the first abscissa of the 

 cul)itus present 6 



2. Head abnormal, wil}i a prominent bilobed frontal ledge, each lobe with a small 



tubercle within 5 



Head normal, vitliuut a prominent frontal ledge 3 



:>. First joint of antenna? normal, not elongate 4 



First joint of antenna? abnormal, much elongate. 



Antenntt' 16-jointed, joints 2 and ?> much elongate, the scape not longly 



hairy beneath ( 906 ) Slrchloccrd Westwood. 



Antenna' 18-jointed, joints 2 and 3 not much elongate, the scape longly 



hairy beneath ( 907 ) Entdinjcerus Forster. 



4. Marginal cell not elongate, but shortened, never longer than the stigma, often 



shorter; maxillary palpi 6-jointed. 



(908) Perilllus Ne s -)[icrvdonus Forster ncc Wesmael. 



Marginal cell elongate, extending to the tij) of the wing, or nearly, always much 



longer than the stigma.. (909) Microdouus Wesniae\=Syntn'tus Forster. 



5. Marginal cell longer than the large stigma, the second discoidal cell incomplete; 



ovipositor prominent (910) ( bftiiiojihornf^ Ratzeburg. 



6. Antennae more than 10-jointed, not clavate 7 



Antennee 10-jointed, geniculate clavate; joints 1 and 3 elongate. 



(911) EnsltiljccniH Forster =Rhopalop}iorus Haliday. 



7. Petiole of abdomen normal, not greatly elongate 8 



Petiole of abdomen greatly elongate. 



(912) Wesmselia Forster =Gainosecus Provancher. 



8. Mesothoracic furrows distinct, complete 9 



Mesothoracic furrows entirely absent or at the most only indicated anteriorly. 10 



9. Transverse cubitus always emerging from the distinctly elongate first abscissa 



of the radius; marginal or radial cell ample, pointed at apex; oviposi- 

 tor prominent. 

 Metathorax distinctly areolated; head nearly cubical; eyes normal; hind 



coxje not elongate (913) Dhwrcunims Forster. 



Metathorax not areolated; head transverse, viewed from in front short, 

 wider than long; eyes very large; hind coxje elongate. 



(914) Myiocephalus Marsha.\\== LoxocepJuilux Forster. 

 Transverse cubitus emerging either direct from the stigma or from the very 

 short first aljscissa of the radius; marginal cell very short. 



(915) Peristenus Forster. 



10. First and second discoidal cells absent or incomplete; at most with only the 



cubitus present 11 



First and second discoidal cells present, distinct. | 

 Marginal cell /o)ig, extending to the tip of tlie wing; posterior face of met- 

 athorax areolated ( 916 ) Euplioridea Ashmead, new genus. 



(Type, Euphoridcd daripennis Ashmead, manuscript.) 



Marginal cell rcr// .•<Jiorf, shorter or no longer than the stigma; metathorax 



exareolated; maxillary ]«dpi 5-jointed (917) Ev.phonis Nees. 



11. Marginal cell obliterated (918) Euphoriella Ashmead, new genus, i 



(Type, Labfo incertus Ashmead.) 



