284 ^^6 Philippine JouvTial of Science i9i7 



P. Maxillary palpi with certain joints greatly dilated and mo- 

 dified; naetanotal prominences not toothed; nervellus in 

 hind wings oblique, slightly curved. 



Pseudogyroneuron g. nov. 

 Z°. Maxillary palpi normal, all joints slender, metanotal pro- 

 minences extended in strong teeth; nervellus in hind wings 



bent at middle Paragyronenron g. nov. 



g^. Transverse median and part of postmedian veins, one or both, 

 strongly curved; mesonotum not trilobed. 

 m}. Stigma very short and wide, twice as long as wide; postmedian 

 vein not strongly swollen, but very strongly curved; meta- 

 notum laterally with strong toothed prominences. 



Gyroneuron Kokujew.* 



to'. Stigma long and narrow, three or more times as long as wide, 



transverse median vein greatly swollen, although in some 



species not curved; metanotum without lateral prominences. 



n\ Notauli distinct on disk of mesonotum; scutellum anteriorly 



bifoveate; postscutellum small and minutely bifoveate; 



abdomen distinctly longer than head and thorax together, 



terminal segments not retracted; ocelli of medium size and 



distant from eyes, vertex posterior of ocelli long; head and 



mesonotum nearly smooth; radius in hind wings obsolete. 



Gyroneuronella g. nov. 

 «^ Notauli obsolete on disk of mesonotum; scutellum anteriorly 

 sexfoveate; postscutellum large and sexfoveate; abdomen 

 not or scarcely longer than head and thorax together, 

 terminal segments more or less retracted; ocelli of great 

 size, approximating the eyes, vertex posterior of ocelli 

 very short; head and mesonotum coarsely sculptured; ra- 

 dius in hind wings distinct Hemigyroneuron g. nov. 



• This Indian genus is inserted for comparison. 



Genus EHYSSALIJS Haliday 



Synopsis of the species. 



a\ Ovipositor shorter than hind tarsi; abdomen with three visible seg- 

 ments; antennae yellowish white at base (five or six joints) and con- 

 colorous with legs; stigma pale, clouded at apex; head and thorax 

 smooth unicolor Ashmead. 



a'. Ovipositor three times length of hind tarsi; abdomen with six visible 

 segments; antennse unicolorous with the dark ferruginous body, the 

 legs paler; stigma pale throughout; head and thorax heavily sculp- 

 tured ashmeadii sp. nov. 



Rhyssalus unicolor Ashmead. 



Rhyssalus unicolor Ashmead, Proc. U. S. Nat. Mus. (1905), 28, 970. 

 "Female. — Length 1.5 mm.; ovipositor shorter than the hind tarsi. 

 Brownish yellow, the sutures of the three-segmented abdomen blackish; 

 stemmaticum black; eyes purplish brown; antennae toward base (the first 

 five or six joints), the palpi, and the legs white or yellowish white. Wings 

 hyaline, the stigma, except at apex, and the internal veins, except as here- 



