ASHMEAD : CLASSIFICATION OF THE CHALCID FMES 357 



much the longest joint ; met.athoracic spiracles oblong-oval ; abdomen often very long, conically 



pointed, much longer than the head and tliorax united Sympiesis Ftirster 



(type Eiilophiis i<eri<-eicornis Xees). 



Antenna; 10-jointed, with one ring-joint, the flagellum not compressed, the funicle joints cylindrical ; 



metathoracic spiracles minute, rounded ; abdomen ovate or oval, depressed, not as long as the head 



and thorax united Dimmockia Ashmead,' g. nov. (type Eulophus incongruiis Ashni.) 



8. Thorax not robust '• 



Thorax robust. 



Metathoras with a median carina, the spiracles small, rounded ; antennse 9-jointed, with one ring- 

 joint, the funicle 3-jointed, the club 3-jointed, abdomen oval or subrotund, depressed, usually 

 shorter than the thorax Cratotrechus Tliomson (tyjie Ichneumon htrvanim L.). 



9. Wings hyaline, the flagellum not compressed 10 



Wings dusky, the flagellum compressed, the funicle very short ; metanotum with a median carina. 



Microplectron Thomson (type Entedon fasvipennis Zeterstd.). 



10. Anteunie 9-j(>inted (scaj)e i)edicel, one ring-joint, 3-jointed funicle and a 3-jointed club). 



Funicle black ; metanotum with a distinct median carina, the lateral folds usually present. 



Eulophus Geoff'roy (type Ichneumon pectinicornis L.). 

 Funicle white ; metanotum with a delicate median carina, the lateral folds always absent. 



Microlycus Thomson (type M. heterocerus Thorns.). 



11. Scutellum with dorsal grooved lines i'2 



Scutellum without dorsal grooved lines 13 



12. Thorax not long, the pronotum anteriorly rounded ; antenn:e inserted below the middle of the face, tlie 



flagellum without branches, filiform. 



Stigmal vein not more than half the length of the marginal vein ; anteini;e 8-jointed. 



Diaulus Ashmead. 

 • Stigmal vein longer, at least two thirds the length of the marginal vein ; antenn;e 9-jointed. 



Diaulomorpha Ashmead. 



13. Thorax not long, the pronotum of normal length 1-t 



Thorax long, the pronotum long, conical and much narrower than the mesonotuni ; antcnnie 10-jointed, 



with one ring-joint Notanisomorpha Ashmead. 



14. Marginal vein very long, three or more times longer thau the stigmal vein ir> 



Marginal vein shorter, not thrice as long as the stigmal vein 16 



15. Antennae 10-jointed, with one ring-joint. 



Flagellum compressed or subeompressed : metathoracic spiracles oval or, subovate ; abdomen long. 



Sympiesis Forster. 

 Flagellum filiform, cylindrical ; metathoracic spiracles small, round ; abdomen oval. 



Dimmockia Ashmead. 



16. Thorax not robust 17 



Thorax robust. 



Metanotum with a median carina and lateral folds ; antennie 9-jointed with 3 loni/ branches. 



Cratotrechus Thomson. 



17. Wings clear hyaline ; flagellum not compressed 18 



Wings dusky ; flagellum compressed ; funicle with 3 nhoii branches JMicroplectron Dalman. 



18. Funicle with 3 long branches Eulophus (leollVoy. 



Funicle with 3 short branches. Microlycus Thomson. 



' Nan?ed in honor of Dr. Geo. Dimmock. 



