The Ohio Naturalist. 
[Vol. XI, No. 3, 
250 
No type species for the genus was indicated by Uhler and 
none so far as I know has been named since. I would therefore 
name immistus Say., the first species listed by Uhler in his paper 
describing the genus, and a distinctly representative species, as 
the type. 
With some slight emendations the key presented in my former 
paper seems to possess the essential basis for the arrangement of 
the species, and in the revised key this arrangement has been 
followed in the main, simply making such additions and changes 
as permit of the inclusion of the other American species. 
Key to the American Species. 
1 . 
3. 
4. 
Lorae remote from the margin of the cheeks; common elytral picture cru- 
ciate; claval vein straight, meeting suture at acute angle 1 
Lorae contiguous to or merging with border of cheeks elytral picture not 
cruciate, outer claval vein curved or hooked at the distal end. . . .2 
Face yellow without cross bands sanctus Say 
Face with two dark cross bands beside frontal arcs 3 
Vertex short, very obtuse, size small, 4 mm fasciatus Osb. 
Vertex longer, rounded or sub-angular, size larger 4 
Fore and middle femora yellow annulated with black. . .neglectus nsp 
Fore and middle femora black, base and apex yellow. .. cruciatus nsp 
Post nodal cell scarcely widened distally 5 
Post nodal cell much widened distally 6 
Post nodal cell without cross veinlets 7 
Post nodal cell with cross veinlets 8 
Nodal vein arising from discal cell auronitens Prov. 
Nodal vein arising from anteapical cell 9 
Vertex flat with transverse impressed line 10 
Vertex convex, no impressed line, edges rounded 11 
Nodal vein from front of cell.. jucundus Uhl. 
Nodal vein from middle of cell... fumidus Ball 
Vertex wider than long, obtuse or rounded 12 
Vertex as long or longer than wide, acute, scalaris V.D.-stigmosus Uhl. ? 
Vertex subacute 14 
Vertex obtuse or rounded, small mexicanus Osb. 
Nodal cell more than twice as long as wide. . 10 
Nodal cell but little longer than wide. unicolor Osb. 
Claval spots oval distinct . albonotatus V. D. 
Claval spots elongate faint consors Uhl. 
With few cross nervures in costal cell 17 
With numerous cross nervures in costal cell 18 
Clavus reticulate irroratus nsp. 
Clavus not reticulate. ;..... lobatus V 7 . D. 
With brown saddle on elytra scrupulosus Ball 
Without brown saddle on elytra. blandus Ball 
Outer claval not strongly hooked at distal end, cross nervure to 
claval suture indistinct or wanting 20 
Outer claval strongly hooked at distal end, usually with distinct 
cross nervure from outer claval to claval suture 21 
Outer claval sinuate approaching inner near its middle 22 
Outer claval nearly straight and parallel to inner, curved at tip 23 
Light ochreous, ultimate ventral segment truncate or slightly 
notched ochraceous Osb. 
Marked with fuscous, ultimate ventral segment produced, productus Osb 
10 . 
11 . 
12 . 
14. 
10 . 
5. 
17. 
18. 
19. 
6 . 
20 
22 
