*44 CONNECTICUT GEOL. AND NAT. HIST. SURVEY. [Bull. 



Wing with R. M. and Cu branching from stem vein at same place. 

 Fig. 22 Trioza, p. 245 



4. Genal cones swollen or blunt, not forming conspicuous tapering 



flaps ; food plants restricted 5 



Genal cones usually produced to form conspicuous tapering flaps; 

 food plants various 6 



5. Genae swollen, usually with cones present; species all developing on 



sumach (Rhus) . ._ Calophya, p. 246 



Genal cones small, blunt, subconical, divergent; species all develop- 

 ing in galls on hackberry (Celtis) Pachypsylla, p. 246 



6. Wings with distal portion somewhat tapering, with Rs extending 



to apex. Fig. 24 Spanioneura, p. 247 



Wings with distal portion bluntly rounded, and Rs at margin not 

 nearer apex than the proximal branch of M. Fig. 24 . .Psylla, p. 247 



and Psyllopsis, p. 250 



Livia Latreille. 



Descriptions and figures of the three species here considered 

 were published in Psyche (Patch 1912a). 



Key to Species. 



1. Distal margin of fore wings with conspicuous smoky band 2 



Fore wing about uniformly feebly transparent, dull brownish 



yellow vernalis 



2. Veins of fore wing white alternating with numerous black rings 



maculipennis 

 Veins of fore wing not ringed with black marginata 



L. vernalis Fitch. Diraphia femoralis Fitch. D. calamorum 

 Fitch. Livia saltatrix Provancher. (PI. vi, 3.) 



Homop. N. Y. St. Cab., 64, 1851. 



Food plant of nymph is not known. Adult found on leaves of 

 pine and on sweet-flag (A corns calamus) by Fitch. 



North Haven, 15 July, 1910 (B. H. W.) ; Manchester, 17 Aug., 1916 

 (M. P. Z.). 



L. maculipennis (Fitch). Diraphia maculipennis Fitch. Livia 

 bifasciata Provancher. (PL vi, I.) 



Trans. N. Y. Agr. Soc, xvii, 740, 1857. 



Nymphs develop in gall on rush {J uncus sp,) as recorded in 

 Psyche (Patch 1916a). 



New Haven, 13, 30 May, 191 1 (B. H. W.). 

 *L. marginata Patch. 



Psyche, xix, 8, 1912. 



Type locality: Colebrook, 21 July, 1905 (H. L. V.). 



Aphalara Foerster. 



Descriptions and figures of the species here considered were 

 published by the Maine Agricultural Experiment Station (Patch 

 1911 and 1912b). 



