26 (July, 
bb. Scutellum side keels diverging posteriorly. 
* Keels of the head and face white. 
Undeveloped form, 4. Pronotum white, beyond the side keels a black 
patch almost concealed beneath the posterior mar- 
gin of the eyes ......... . ..... 9. elegantula, Boh. 
4 §]. Pronotum and scutellum yellowish or pale 
brownish-yellow, keels of the former and middle 
keel of the latter white. 
c. Middle keel of the face distinctly fureate before the apex. 
Do. Head and face yellow, keels margined with black... 
10. collina, Boh. 
Do. Crown yellow, face between the keels black... 
12. distincta, Flor. 
Developed form of the three last species unknown to us. 
ce. Middle keel of the face not distinctly furcate before the apex. 
Developed form, 3. Keels of the face margined with black... 
11. sordidula, Stal. 
#@ 4. Pronotum and scutellum keels concolorous. 
Undeveloped form, 2. Face between the keels black.. 13. Boldi (n. s.). 
** Keels of the head and face concolorous. 
Developed form, 9. Head, pronotum, and scutellum smoky-brown. 
Elytra pale brownish-yellow, nerves brown, dis- 
tinctly granulated ...............14. eapnodes (n. 8.). 
Undeveloped form, 8. Head, face, pronotum, and scutellum yellow, 
Elytra fuscous-yellow, nerves distinctly granu- 
Tated 2.0. .c. 0. ces cee sencences noe LO. ISG TUOTIEREE EERE 
Undeveloped form, g. Head, pronotum, and scutellum clear brownish- 
yellow. Face between the keels black... 
16. adela, Flor. 
Undeveloped form, 8. Head, pronotum, and scutellum clear brown. 
Face, pronotum, and scutellum beyond the side 
keels, black ............... 17. melanopachys (n. s.). 
Undeveloped form, &. Head clear brown. Pronotum and scutellum 
fuscous-brown. Elytra smoky lacquer-yellow... 
18. venosa, Germ. 
B. Head quadrate. 
I here give an outline of the form of the genital segment, when 
viewed from above, of the ¢ of the 
~ three following species, so that the 
' value of the character to be thus ob- 
\ tained in separating such difficult 
species as pellucida and discolor 
3 
1. forcipata. 2. pellucida, 3. discolor. may be seen. 
