218 
IOWA ACADEMY OP SCIENCES. 
Washingtoii, D. C. This appears to be an abundant foroa in 
the south and is apparently reaching its northern limit in Iowa, 
occurring, however, in marvelous abundance in hot sheltered 
locations and on southern exposures where the vegetation is 
short and the ground hot. 
The adults are readily recognized by their deep, testaceous 
brown or black ground color, with a series of points on the 
anterior margin of the vertex, extending down to the antennal 
pits on either side and the two outer apical veinlets, white. 
The legs and a narrow marginal stripe on the basal half of the 
costa yellow. The head is short and rounding, the elytra long; 
central anteapical cell divided. Ultimate ventral segment of 
the female rounding posteriorly, slightly produced in the mid- 
dle; male valve broad, convex, obtusely, concavely pointed; 
black, with a narrow yellow margin; plates two and a half times 
the length of the valve, bluntly pointed, margined with yellow 
bristles. 
Larv90: Quite as distinctly marked as the adult and are 
easily separated from any other form. They are two to two 
and one-half millimeters long, when full-grown, very stout built, 
head broad and short as in the adult. Color above a rich olive 
brown with three white bands as follows: One on the posterior 
margin of the thorax, complete in the larvee but only visible 
between the wing-pads in the pupae, a narrow interrupted one 
on the middle of the abdomen, and a broader one near the tip; 
each abdominal segment margined posteriorly with red, just in 
front of which there are four white dots arranged in longitu- 
dinal rows where not obscured by the white markings; eyes, 
area between the posterior bands and tip of abdomen darker, 
approaching black; beneath pale, with tip of abdomen and pos- 
terior tibisD darker. 
The adults were taken first June 20th, on a field that had just 
recently been seeded down and on which weeds were springing 
up very thickly. On July 27th the same spot was abounding 
in full-grown larvse, pupae and adults; the larvae and pupae dis- 
appearing within a week, adults continuing abundant from then 
on into and through October. 
DELTOCEPHALUS NIGRIPRONS FORBES. 
Oicadula nigrifrons Forbes. 14th Kept. 111. State Ent., p. 67. 
D. fusconervosus Van D. Bull. Buffalo Soc. Nat. Sci., V, 207, 1894. 
Thamnotettix perpunctata Van D. Bull. Buffalo Soc. N. Sci., V. No. 4, 1894. 
Deltocephalus vanduzei Gillette and Baker. Hemiptera of Colorado, p. 90. 
The specific limit’s and generic position of this species are 
very puzzling and have led to much confusion and synonomy 
