42 
IOWA ACADEMY OF SCIENCES. 
Resembling A. irrorata in size and form, but with a 
much wider head and more prominent eyes. Head and 
scutellum yellow with black markings. Pronotum and 
elytra slaty or reddish with blue mottlings. Lengthy 
13mm; width, 3mm. 
Head and anterior part of pronotum inclined in same plane. 
Head broad, eyes prominent. Vertex two-thirds as long as its basal 
width, roundingly right angled, the apex blunt. Front gibbous, as 
seen from side rounding, the apex below the middle. Pronotum 
convex, elevated, one-half wider than long. Elytra long, narrow, 
claval veins but slightly approaching each other usually with a cross 
nervure, costal area norrow, scarcely wider than adjacent discal 
cell, the cross nervure between the sectors some distance before the 
fork or the first sector. 
Color; vertex anterior margin of pronotum and the scutellum 
rusty orange, an incomplete circle before the middle of the vertex, 
open in front giving off eight radiating lines, two running back and 
curving around the ocelli, two running forward and meeting at the 
apex, the other two pairs equidistant between these, a line along the 
margin from the eye to the apex, some irregular markings at the 
base and on anterior margin of pronotum, black. Scutellum with a 
transverse oval giving off six lines, two to each margin. Pronotum 
and elytra varying from slaty blue to brown and bright red, some- 
times a large pruinose patch on either side just back of the middle 
of the elytra. Front orange, a black line on middle and a pair of 
latteral, converging lines which sometimes meet below the apex. 
Below dirty yellow, abdomen black above, margins yellow. 
Genitalia; female segment a little larger than penultimate, the 
posterior margin divided into three nearly equal rounding lobes,, 
the median one horizontal, the two lateral ones sloping or curved 
around ovipositor. The horizontal disc parabolic, with a median 
and often lateral carinse; male plates about half as wide as the ulti- 
mate segment, together equilaterally triangular or slighly elongate. 
Specimens are at hand from District of Columbia, Mary- 
land, Virginia, Georgia, North Carolina, Florida, Ala- 
bama, Louisiana, Missouri, Texas and Mexico, Central 
America, Dutch Guiana and Brazil. 
It occurs in our territory from New Jersey, Maryland r 
Michigan, Illinois and Missouri, through the Southern 
States to Florida and Texas, and on south to Brazil. 
The synonomy of this species is very puzzling, and that 
given above does not represent in full the conclusion 
reached by the author, but only that part of it that 
appears to be unquestionable or that comes in our range.. 
After examining a series from South America and compar- 
