396 COXXECTICUT GEOL. AXD NAT. HIST. SURVEY [Bull. 



11. Wings clear light yellow, including the costal field; abdomen ($) brownish 



yellow, without a distinct darkened subterminal ring luteola 



Wings grayish or yellowish subhyaline ; abdomen ( S ) with a dark brown 

 to blackish subterminal ring { except in pcrsiiuilis) 12 



12. Stigma not or scarcely indicated; wing-tip very narrowly and vaguely in- 



fumed ; male hypopygium with the aedeagus elongate, black, fully one-half 



longer than the branched gonapophyses persimilis 



Stigma dark brown; wing-tip conspicuously infumed; male hypopygium 

 with the aedeagus pale, subequal to or slightly longer than the branched 

 gonapophj'ses 13 



13. Outer end of cell C strongly infumed fumidicosta 



Costal cell not infumed consimiiis 



14. Male hypopygium with the aedeagus and gonapophyses short, not exceeding 



the outer dististyle in length; basal gonapophyses profoundly branched 



(Fig. 46, I) (siviilis group) 15 



Alale hypopygium with the aedeagus and gonapophyses very elongate, exceed- 

 ing the outer dististyle in length ; basal gonapophyses simple or only 

 weakly branched beyond midlength (Fig. 46, A, B, F) (acliista group.) 17 



15. General coloration of mesonotum dark brown similis 



General coloration of mesonotum polished rusty-red 16 



16. Tips of femora narrowly and abruptly blackened; abdomen ( S ) with a black 



subterminal ring; male hypopygium with the aedeagus black, subequal to 



or longer than the basal gonapophyses adustoides 



Tips of femora gradually but narrowly infuscated; abdomen without a 

 dark subterminal ring; male hypopygium with the aedeagus pale, very 

 small, shorter than the basal gonapophyses iowensis 



17. Male hypopygium with the median region of tergite produced into a con- 



spicuous finger-like lobe; inner dististyle straight or nearly so (Fig. 



46, B) caudifera 



Male hypopygium with the median region of tergite not so produced; 

 inner dististyle bent at midlength into a right angle (Fig. 46, A, F) .... 18 



18. Wings with dark pattern along cord reduced to a narrow line; male 



liypopygium (Fig. 46, F) with basal gonapophyses appearing as powerful 

 blackened rods, each of wdiich bears a short lateral spine at near two- 

 thirds the length neadusta 



Wings with dark pattern along cord conspicuous; male hypopygium (Fig. 

 46, A) with basal gonapophyses appearing as very slender, unbranched 

 rods adusta 



LimnophiJa {Phylidorea) adjimcfa Dietz (Can. Ent., 52:6-7; 

 1!>20), described iiom Cape Breton Island, Nova Scotia, seems cer- 

 tainly to refer to tet^ae-novae and is so considered in this report. 



Limnophila {Phylidorea) adusta O. S. (Figs. 44, B; 46, A). 



ly;59. Limnophila adusta Osten Sacken : Proc. Acad. Xat. Sci. Phil- 

 adelphia, 1859 : 235. 



Figs.— Needham, 23rd Rept. N. Y. St. Ent. for 1907, pi. 18, fig. 5 (ven.) ; 1908. 

 Alexander, Cfls. N. Y., 1, pi. 39, fig. 128 (wing) ; 1919. Dickinson, Cfls. W'isc, p. 

 204, fig. 99 (wing) ; 1932. 



General coloration shiny yello^Y to rusty brown, with indications 

 of darker stripes, the pleura more pollinose. Antennae short, j^ellow- 

 ish, the scape a little darker; head black, pruinose. Legs yellow, the 

 femora with a narrow, nearly terminal, brown ring; tips of tibiae nar- 

 rowly dark brown. AVings pale yellow, with a handsome darker pat- 

 tern, including costal and apical cloudings and conspicuous seams 

 along cord and vein Cui. Abdomen ( $ ) pale brown, blackened sub- 

 tenninally; hypopygium fulvous-yellow. Male hypopygium (Fig. 



