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huge 'heterogenous group, drifting into the AgalUinae via Tar- 

 tcssus and Epithalanimm, and into the Tetigoniinae via Macro- 

 ccratogonia. 



(2) Acoccplialiiia of Van Duzee (not the Acocephahdae of 

 Edwards) should, I think, be included in the above; or if not, 

 they would be separable* by the dorsal position of the ocelli, the 

 degeneration of the organs of flight appearing of comparatively 

 little account. Eupclix I would place here, but Platyuuiopiiis 

 and its allies are certainly Phrynomorphinc. 



(3) Euptcryginac, despite Aneono, are a we!l marked group. 



(4) Pciithiiminac (Gyponina of Van Duzee) have very lit- 

 tle to do with the Tetigoniinae except that the ocelli are dorsal. 



(5) Tetigoniinae correspond to the Tettigonida of \ an 

 Duzee; they probably include the curious Macroceratogouia. 



(6) AgalUinae (Bythoscopida, Van Duzee) are difficult, as 1 

 have said before, to separate shai-ply from lassinae. 



(7) Lcdrinae are well marked, l^ut have something of the 

 appearance of Dorycephahis, except that the ocelli are dorsal; 

 Ledra is an extreme 'form. 



(8) Stenocotinae are exclusively Australian, allied to Ledrinac 

 but the ocelli are placed in separate grooves on the top of the 

 rather thin head. 



(9) Kaliai'alninae, monotypical, strongly recalling certain 

 membracine characters, ocelli placed somewhat as in Stenoco- 

 tinae, but head not thin. Legs very feebly bristly. 



(10) The Mcgophthahninae are possiblv to be placed here. 

 (ti) The Ulopiinic are probablv membracid. 



(3) Osborn's 7'ii'-a's on PJiylogeny. 



r cannot conceive on what grounds the learned Professor con- 

 siders the Tetigoniidae to lie so higblv organized. He instances 

 the structure of the pronotum, head, scutellum and tibiae, etc., 

 in the other families, but is silent as regards the special virtues 

 of the Jassids- 



To me the Tetigoniidae (and especially Phrynomorphiis, Del- 

 focepliahis. etc.), seem far the most primitive of Leaf-hoppers. 

 Their head, fhorax, legs and genital segments seem to be of 

 the most ordinary, common type that one could find in the 

 larger orders of Insecta. The tegmina and wings are also verv 

 s^implc, though this is ])erhaps the simplicity of degradation. 



* Under the name of AjilH-odinae. 



