ASHMEAD : CLASSIFICATION OF THE CHALCID FLIES 293 



always narrower and bidentate. In the females the hypopygium is usually 



prominent. 



TABLE OF GENERA. 



1. Females 2 



Males 24 



2. Face with a distinct carina between the base of the antennae 15 



Face without such a carina, rarely with a rounded ridge ; antennae inserted just above the clypeus, or 



below the middle of the face. 



Wingless or subapterous species 11 



Winged species 3 



3. Front wings with the marginal vein rather long, twice as long as the stigmal vein, or even longer, always 



much longer than the stigmal 4 



Front wings with the marginal vein short, the postmarginal vein very short 10 



4. Stigmal and postmarginal veins not short, or rarely short, the postmarginal vein most frequently 



longer than the stigmal 5 



Stigmal and postmarginal, veins short ; scape slender, cylindrical. 



Wings fuscous, marked Avith white bands or rays ; frons broad, the lateral ocelli nearer to the 



eye margin than to the front ocellus. Calocerinus Howai'd (type Tetracnemus floridanus Ashm.). 



Wings hyaline ; frons not so broad, the lateral ocelli not nearer to the eye margin than to the 



front ocellus Tetralophidia Ashmead (type T. bakeri Ashm.). 



5. Funicle 6-jointed, without I'ing-joints 6 



Funicle 4-jointed, with two ring-joints. 



Frons minutely shagreened, with minute punctures scattered over the surface ; scape slender, 

 cylindrical, the flagellum at the most subclavate ; stigmal vein very oblique, subclavate. 



Meromyzobia Ashmead (type Ericydnus maculipennis Ashm.). 



6. Stigmal and postmarginal veins short, the latter sometimes hardly developed ; front wings with a dis- 



coidal blotch 7 



Stigmal and postmarginal veins not short, usually long, the latter the longer, sometimes as long as the 

 marginal ; front wings without a discoidal blotch 8 



7. Frons very minutely shagreened, with minute punctures scattered over the surface, or almost smooth. 



Head viewed from in front longer than wide ; scutellum with a tuft of long hairs ; abdomen 

 scarcely longer than the head and thorax united, the ovipositor not or scarcely exserted ; 

 flagellum gradually broadened towards apex, compressed, the pedicel hardly as long as the 

 first joint of the funicle ; the joints after the third broader than long. 



Chrysopophagus Ashmead (type C. compressicornis Ashm.). 



Head viewed from in front not longer than wide, if anything a little wider than long ; scutellum 

 without a tuft of long hairs ; abdomen distinctly longer than the head and thorax united, with 

 a prominent ovipositor which is longer than half the length of the abdomen ; flagellum sub- 

 clavate, not compressed, the funicle joints longer than thick Tineophoctonus Ashmead 



(type Phienodescus armatus Ashm.). 



8. Frons regularly punctate, or broad and smooth, margaritaceously shining 9 



Frons minutely shagreened, with minute punctures scattered over the surface ; scape not compressedly 



dilated beneath, either cylindrical or subcylindrical. 



Antennae not longer than the body, usually somewhat shorter, the first joint of the flagellum 

 rarely more than twice as long as thick ; stigmal vein not curved ; axillae just meet at inner 

 basal angles Ericydnus Walker (type Encyrtus longicornis Dalm.). 



