AKT. IS JASSID GENUS TYPHLOCYBA McATEE 9 



7. (Three alternatives). Eighth steniite moderately pointed apically, the 



apex projecting farther posteriorly than the sides (fig. 101). 



gillettei Van Duzee, p. 23 



— Eighth sternite with broadly rounded lateral lobes which project farther 



lX)steriorly than middle of segment, hind margin sinuate between these 

 lobes (lig. lOS) fiavomarginata Gillette and Baker, p. 17 



— Eighth sternite moderately emarginate both laterally and medially. 



phryne, new species, p. 34 



8. Eighth sternite of female slightly emarginate medially (fig. 107) ; aedeagus 



of male without crossed processes at apex (figs. 49-50). 



ruhriocellata Malloch, p. 20 



— Eighth sternite moderately pointed medially (fig. 107) ; aedeagus of male 



with crossed processes at apex (figs. 50-57) gillettei Van Duzee, p. 23 



9. Dark marking, including a vitta along commissure 10 



— Dark markings otherwise 11 



10. !-NCutellum or narrow margins thereof also dark commissuralis Stal, p. 11 



— Marks like parentheses on thorax, and spots anterior to crossveins also 



dark phryne, new species, p. 34 



11. Species from 4 to 5 mm. in length cymba McAtee, p. 21 



— Species from 3 to 4 mm. in length 12 



12. (Three alternatives). Tegmen with a dark band across base and another 



across apex of corium, or wholly dark to crossveins; aedeagus as in figures 

 71-72 (a European species recorded from this country, but American 

 specimens not seen by pi'esent author) nitidula Fabricius, p. 33 



— Tegmen may have similar markings, but usually with the anterior cross- 



band near middle, not base of corium; aedeagus as in figures 56-58 (a 

 common American species with numerous color varieties). 



gillettei Van Duzee, p. 23 



— Tegmen with dark dots at base, middle, and apex of clavus and du.sky spots 



anterior to crossveins 6-notata Van Duzee, p. 34 



13. Tegmina scarlet to the crossveins tuniearubra Gillette, p. 19 



— Tegmina colored otherwise 14 



14. Females 15 



— Males 21 



15. (Four alternatives). Eighth sternite distinctly emarginate medially (figs. 



lOG, 108) 16 



— Eighth sternite almost evenly convex posteriorly, sometimes slightly emar- 



ginate medially 17 



— Eighth sternite more or less emarginate laterally (figs. 101, 103), but 



scarcely to be described as pointed medially 19 



— Eighth sternite distinctly pointed medially (fig. 104), but sometimes may 



appear slightly emarginate laterally rosae Linnaeus, p. 13 



ariadne, new species, p. 14 

 niobe, new species, p. 20 

 lethierryi Edwards, p. 15 



16. Posterior angles of eighth sternite developed as rounded lobes (fig. 108). 



flavomarginata Gillette and Baker, p. 17 



— Fosterior angles of eiglith sternite not so developed (fig. 106). 



modesta Gibson, p. 33 



17. Tegmina v.ith distinct dark crossbands duplicata, new species, p. 16 



— Tegmina without crossbands 18 



79654—26 2 



