ASHMEAD : CLASSIFICATION OF THE CHALCID FLIES 30 1 



of funicle, as well as the following, transverse ; front wings with a large discal cloud beneath the 

 stigmal and marginal veins, the postmarginal and the stigmal veins very long. 



Euryrhopalus Howard (type E. schwarzi Howard). 



23. Marginal vein short, rarely much more than twice longer than thick 24 



Marginal vein rather long, rarely shorter than the stigmal vein 25 



24. Head with some sparse thimble-like or umbilicate punctures ; scutellum a little longer than the 



mesonotum ; eyes pubescent. 



Club of antennae not longer than joints 1 and 2 of funicle united, the funicle joints all longer 

 than wide ; marginal vein scarcely as long as the stigmal vein, the postmarginal vein longer 

 than the stigmal ; abdomen conic-ovate, a little longer than the head and thorax united, with 

 the ovipositor subexserted, dorsum subconcave ; mandibles with the two outer teeth longer 

 and more acute than the inner Hemencyrtus Ashmead (type S. herbertii Ashm.). 



Club of antennae very large and distinctly longer than the funicle, the funicle joints all very 

 short, wider than long ; abdomen depressed, oval, shorter than the thorax ; mandibles with 

 small, subequal teeth Coccophoctonus Ashmead (type C. dactylopH Ashm.). 



25. Wings embrowned, the costal cell in hind wings narrow and short ; mesonotum scarcely as long as the 



scutellum, finely shagreened, with sparse punctures ; eyes large, bare ; flagellum ringed with white ; 

 pedicel obconical, only a little longer than thick, the following joints gradually shortening, the last 

 three funicle joints being not longer than wide...Phaenodiscus Forster (type Encyrtus seneus Dalm.). 

 Wings hyaline, the costal cell in hind wings long and narrow ; mesonotum scarcely as long as the 

 scutellum, finely transversely rugulose or shagreened, especially anteriorly ; eyes pubescent ; flagel- 

 lum subclavate, uot ringed with white ; pedicel very long, three times as long as thick, the funicle 

 joints, except the first, wider than long Rhytidothorax Ashmead (type R. mariatti Ashm.). 



26. Antennae inserted on or a little above the middle of the face 27 



Antennae inserted near the mouth boi'der or very far below the middle of the face 28 



27. Frons convex, somewhat coarsely and closely punctate ; scape not extending beyond the ocelli ; meso- 



thorax rather coarsely shagreened ; front wings with the marginal, stigmal and postmarginal veins 



long, subequal Tanaoneura Howard (type T. ashmeadii Howard). 



Frons highly convex but smooth ; scape very long, extending far beyond the ocelli ; mesonotum 

 smooth, polished ; front wings fasciate or maculate, the marginal vein short, the postmarginal and 

 stigmal veins much longer Hexacladia Ashmead (type H. smith ii Howard). 



28. Antennae with the funicle 6-jointed 29 



Antennae with the funicle 3, 4- or 5-jointed 58 



29. Metathorax with the pleura and the lateral ridges always clothed with a dense, silvery-white pubes- 



cence ; body rather robust 30 



Metathorax bare, or with the lateral ridges superiorly alone pilose 34 



30. Antennae similar in both sexes, the club strongly obliquely acuminate, conical, often white ; front 



wings most frequeiatly with a fuscous cloud or maculate ; scape cylindrical, not at all dilated 31 



Antennae dissimilar in the sexes, the club not thicker than the funicle ; marginal and postmarginal 



veins not very short, the former usually, but not always, a little the longer 32 



31. Marginal vein not jjunctiform, the stigmal and postmarginal veins rather long, at least twice longer 



than the marginal Homalotylus Mayr (type Encyrtus flaminius Dalm.). 



Mai'ginal vein punctiform or nearly ; the stigmal vein very long, curved ; the postmarginal vein en- 

 tirely wanting Isodromus Howard (type I. iceryx Howard). 



32. Thorax without a white lunula before the tegulse ; ovipositor not exserted, or if exserted very slender 33 



