IOWA ACADEMY OF SCIENCES. 
45 
of the vertex, very roundingly angled below. Elytra broad, and 
short, the costral area wider than adjacent cells, first sector forking 
before the cross nervure. 
Color; vertex and pronotum black, coarsely and irregularly 
dotted with yellow; on the pronotum the wrinkles are yellow, the 
pits black. Scutellum black, broken lines on the margins, a median 
line on the posterior half, and a pair of lines on anterior di-c 
enclosing a number of yellow spots. Elytra red, with the nervures 
black; sometimes the disc is slaty blue, with light margins to the 
nervures. Front black, with round white spots. B low black, 
sometimes marked with yellow. As seen from side, a narrow yel- 
low line extends around the vertex in front on a level with the eve 
and runs from the lower corner of the eye to the lateral margin of 
the abdomen and on back to the pygofers. 
Genitalia; female segment twice the length of the preceding, 
truncate, or very slightly emarginate posteriorly, the lateral angles 
often depressed, leaving a semicircular disc; male plates, tri- 
angular, one fourth longer than their basal width, as long as the 
pygofers. 
Specimens are at hand from Ontario, District of Colum- 
bia, Virginia, Florida, Alabama, Tennessee, Mississippi,. 
Manitoba, Minnesota, Iowa, Dakota, Nebraska, Arkansas, 
Texas, Montana, Wyoming, Colorado, Idaho, Washington, 
New Mexico, and Nicaraugua, Central America. 
VAR LIMBATA. SAY. 
Tettigonia lirribata. Say. Jou-. Acad. Nat. Sc. , Phila. , IV, p. 340, I825. 
Tettigonia septentrionalis, Walkr Homop. Supp. , p. 193,1858. 
Usually somewhat smaller and narrower than the typi- 
cal form, often with longer elytra, which gives them a 
somewhat linear appearance. 
Color, shining black, vertex and face usually with a few ra f her 
large yellow spots; pronotum with two ocellate orange spots well 
back of the anterior margin and in line with the ocelli; sometimes 
another pair on the outer angles of the scutellum Below black, 
the lateral line extending from the eye back, broad and distinct. 
Specimens of this variety are at hand from Colorado, 
Dakota and Iowa, and it has been reported from Michigan 
and Canada, and Walker’s species was from the Mackenzie 
river. The white lateral line will at once separate it from 
the black form of T. liieroglyphica, which it somewhat 
resembles. 
The species, as a whole, occurs from the Mackenzie river 
and Nova Scotia south throughout the whole continent, 
and to northern South America at least. It is somewhat 
