«; 



SYNOPSIS OF THE SPECIES DESCRIBED IN THE SEQUEL. G3 



f. f Face very receding. 2 longipennis Wied. 



\ Face not receding. 6 



Back of the thorax not striped. 7 



Back of the thorax striped. 9 



- ( Abdomen with black dots. obliqua Say.* 



I Abdomen without black dots. 8 



f The band rising over the posterior transverse vein is connected with 



I the preceding on the posterior border. 3 fratria, n. sp. 



, The band rising over the posterior transverse vein is not connected 



[ with the preceding. 4 suspensa, n. sp. 



(The two middle bands of the wing diverge towards the posterior 

 border. 5 unicolor, n. sp. 



! The two middle bauds of the wing are converging towards the paste- 

 ls rior border. 6 electa Say. 

 10 f Thorax and abdomen differing in color. 7 insecta, n. sp. 



I Thorax ami abdomen of the same color. 11 



,, ( Color of the body yellow. 12 



( Color of the body black. 14 



12 I Abdomen with black dots. 8 palposa, n. sp. 



\ Abdomen without black dots. 13 



.„ ( Basal third of the wing hyaline. vernoniae, n. sp.f 



( Basal third of the wing pictured. 9 suavis, n. sp. 



14 ( Scutellum yellow. 10 cingulata, n. sp. 



( Scutellum black. 11 polita, n. sp. 



,- ( Wings much widened. 16 



( Wings not widened. 17 



/ Tip of the wings with an uninterrupted white seam. 12 sparsa Wit d- 

 lo - Tip of the wings with an interrupted white seam. 



I 13 rotundipermis, n. sp. 



,,- f Proboscis geniculated. 18 



I Proboscis not geniculated. 19 



j q f Stigma with a limpid drop. 14 clathrata, n. sp. 



( Stigma without limpid drop. 15 humilis, n. sp. 



, () | Reticulation of the wing not radiating at its tip. 20 



I Reticulation of the wing radiating at its tip. 21 



2 Q ( Front exceedingly broad. 16 solidaginis Fitch. 



'. Front of moderate breadth. 17 seriata, n. sp. 



s reticulate only on the apical half. 18 Solaris, n. sp. 



gs reticulate on their whole surface. 22 



.,., | 1 1' ■ v, hole reticulation equally broken. 19 aequalis, n. sp. 



I The reticulation broken much less in the middle. 23 



21 r Win 



( Wine 



23 



Abdomen yellow. 24 



Abdomen black. 25 



* See Appendix III. f Ibid. 



