230 THE CANADIAN ENTOMOLOGIST. 



r^ 



ROUP WITH Moderate Palpi. 



8. Hyd. aiitumnalis Strom / White mesial space, olive shadings, 



or pi uv lata Gn. \ slate coloured bands. 



Var. (a) perfracta Swett | ^ White mesial space suffused 



-^ I with pmk. 



Var. (b) crokeri Svvett -f (^) .G'"^^" ground colour replaced 



i with yellow, black bands. 



r (c) As typical, mesial space suffused 



Var. (c) cohimbiata Taylor with cinereous and narrow, very 



[ large size. 



Var. (d) constricta Strand ( (d) Mesial lines smutty, lines in-' 



\ distinct. 



Var. (e) iiigrescens Hoyn.-Heu^ne . . ( (e) Unicolorous; smutty suffused. 



I Green ground colour, tendency of 



9. Hyd. iraiisfigurata Swett extra- and intradiscal lines to join 



[ near inner margin. 



,^ r/,,7 ,7/- ■ 7 r» 1 ' Red shadings to lines and mesial 



10. Jtiyd. caiitorniaia Pack ^ 



1 space. 



11. Hyd. Ia7iavahrata Streck | Said to be var. oi californiata. 



TO zy„^ 7 J 4 o . f Long-winged slender species with 



12. Hyd. glenwooddta Swett. .. ^, ^ • . j- , ,• 



\ s-shaped intradiscal line. 



13. Hyd. magnificata Taylor j Black and green. 



I wish to thank Mr. A. F. Winn and Mr. G. Chagnon for the loan 

 of specimens, and the latter for his help on the genitalia, on which we 

 hope to publish something later. I append a few of the more important 

 references to Hyd. autumnalis and its varieties : . 



1783. autunmalis Strom, Kgl. dansk. Vid Selsk. Skr., p. 85. 

 1776. " Dennis & Schiff, Syst. Verz. Wien, 109, 5 (not 



described). 



1786. aidumnalis Sepp., II, pi. 5, figs. 1-8. 

 1794. trifasciata Bork., Eur, Schmett., V, p. 308, No. 141. 

 1797. impluviaia Hi.ib., Eur. Schmett, 223 (post 1797). 

 1810. " Haw., Lepid. Brit, part 2, p. 321. 



1822. " Hub., Verz. Schmett., 322, 3, p. 106. 



1828. " Treits., Schmett. Europa, VI, part 2, p. 21. 



1829. " Stephens, Nomenc. Brit. Ins., p. 44. 



1830 " Dupon., Lep. France, V, p. 424, pi. 200, fig. 3. 



1831. " Stephens, III. Brit. Haust., Ill, p. 254. 



