ASHMEAI) : CLASSIFICATION OF TIIK CIIALCID FLIFS 295 



Front wings with the marginal and postmiirginal veins very short, the latter scarcely developed, 

 the marginal vein almost punctiform ; clypeus normal ; antenna; long, cylindrical, subclavate, 

 the scape slender, the pedicel twice as long as the first joint of funicle. 



Tetracnemoidea Howard (type T. auslraliensin How.). 



l(i. Axillie united at tlie inner basal angles, or at least touching each other 17 



Axilla; widely separated at inner ba-sal angles ; postmarginal vein not developed. 



Eyes rounded; antennte inserted far anteriorly below an imaginary line ilrinvn I'lom tlie base of 

 tlie eyes Tetracnemus Westwood (type T. dircrHicornis Westw.). 



17. Eyes bare, not pul)escent 18 



Eyes pubescent. 



Marginal vein a little shorter than the stigmal vein, the postmarginal vein at least as long as the 

 stigmal vein ; flagellum clavate ; the funicle joints short, wider than long. 



Habrolepoidea Howard (typo Jf. f/lauca How.). 



18. Wings hyaline 19 



Wings fu.scous, with white rays or bands 23 



19. Marginal vein punctiform, not longer than thick, the postmarginal vein not dcvelo|ied 22 



Marginal vein not punctiform. 



Marginal vein always longer than the stigmal vein 20 



Marginal vein always shorter than the stigmal vein 21 



20. Marginal vein about thrice as long as the stigmal vein, the postmarginal vein not longer than the shaft 



of the stigmal vein, the latter short, perpendicular ; axillie just meet at their inner ba,sal angles ; 

 pronotum very short, scarcely visible from above ; raesonotum scaly punctate, or reticulate. 



Tetralophiellus Ashmead (type T. bremcollis Ashm.). 



Marginal vein only a little longer than the stigmal vein, the postmarginal vein very short, hardly 



developed ; axilla; meet at inner basal angles ; pronotum not short, conical ; mesonotum smooth ; 



antennse not shoit, subclavate Tetracladia Howard (type T. texana How.). 



21. Marginal vein fully twice as long as thick or about half the length of the stigmal vein, the post- 



marginal vein only slightly developed ; antennae clavate, the club ovate, 3-joiuted, much stouter 

 than the funicle, the scape more than twice as long as thick at apex ; funicle joints one fourth 

 longer than thick ; pronotum very short, transverse linear ; mesonotum microscopically reticulate ; 



hypopygiuni very prominent, plowshare-shaped Tetracnemopsis Ashmead 



(type Tetracnemux westwoodii Ckll.). 



22. Antennic subclavate, the pedicel hardly longer than tliick at apex, but longer than the first joint of the 



fmiicle ; funicle joints subniouiliform ; pronotum very short ; mesonotum shagreened or scaly punc- 

 tate Pentacnemus Howard (type F. bucculatricis How.). 



23. Marginal vein about twice as long as thick, not longer than the stigmal, the postmarginal vein hardly 



so long ; axilliB not quite meeting an inner basal angles ; antennic subclavate, inserted close to the 

 mouth, the scape long, slender, only slightly thickened towards apex ; funicle joints 1-2 subequal, 

 hardly longer than thick, the following gradually increasing in thickness ; eyes very large ; irons 

 narrow ; mesonotum smooth, metallic, a little shorter than the scutellum, the latter opatpic, 



shagreened ; abdomen ovate, shorter than the thoiax, depressed Habrolepopteryx Ashmead 



(type Fsilopliriis j'ulcliripennis Ashm.). 



24. Epistoma not carinate 25 



Epistoma carinate 39 



25. Antennie ramose, with 4 branches 2f) 



Antenna; simple, without branches, the scape and llagelhuu sometimes dilated or compressed 27 



