IOWA ACADEMY OP SCIENCES. 
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long and slender, spurs on hind tibia small, scarcely longer than its width, 
the apical crown of spines very large; whole dorsal surface covered with a 
coarse golden pubescence. 
Color: Straw- yellow clouded with fuscous, margins of sulcus both above 
and below, dark brown; vertex, pronotum and scutellum pale straw color, 
with two longitudinal brownish fuscous stripes enclosing a narrow median 
light one; elytra straw-yellow, the costal margin broadly white; inside this 
is a dark stripe arising against the eye and running back across the lateral 
margin of the pronotum and along the elytra inside the first sector to well 
beyond the middle; sometimes in the female, often in the male, it spreads 
out inwardly and darkens up the disc on the anterior two-thirds; front, yel- 
lowish, ribbed with darker, a light stripe arises under the eye and runs 
back to join the costal stripe; legs, straw-yellow. 
Genitalia; female pygofers, short, stout, strongly elevated so that the 
tip of the exserted ovipositer touches the sutural margin of the elytra; ulti- 
mate ventral segment of the male abdomen very large, strongly convex, 
shining, plates vertical, wedge-shaped, over twice longer than their basal 
width, their tips nearly touching the elytra at the suture. 
Habitat: Specimens are at hand from Idaho, Wyoming, Mon- 
tana, Colorado, Nebraska, South Dakota, Iowa, New Hamp- 
shire, Ontario and Connecticut; Uhler reports it (as lineatus) 
from the Yukon, Mackenzie and Red River countries, and Baker 
(as americanus) from Massachusetts and Connecticut. 
This is a very common species on the plains and prairies 
and extends eastward to the Atlantic coast. An examination 
of a type of americanus proved it to be identical with the 
forms that have been examined from other eastern localities 
and cannot be separated from the western ones. The only 
point of separation given in the description is “ the flatter face 
of lineatus,^' and that character can be readily duplicated in 
western specimens. 
GENUS PHIL^NUS Stal. 
Vertex with the anterior margin obtuse or slightly acutely angulate, 
posterior margin rounding or very slightly angulate, longer on middle 
than against the eyes, over half the length of the pronotum, anterior 
margin between the eyes and tylus deeply sulcate, tylus distinct, anterior 
margin rounding, polished, ocelli near the posterior margin, nearly as far 
from each other as from eyes, front moderately infiated, coarsely ribbed 
either side the median line, disc flattened, clothed with coarse hairs, ros- 
trum short and stout, composed of two equal segments, not extending 
beyond the second pair of coxae; head together with the eyes about equal, 
ing in width the posterior part of the pronotum; pronotum weakly convex 
without a median carina, rounding angulate in front, deeply emarginate 
behind, the lateral margin much shorter than the distance between the 
ocelli, carinate, claval margins long and slightly emarginate; elytra over 
twice longer than wide, convex or paralled margined, without an appendix; 
