42 IOWA ACADEMY OF SCIENCES. 



C' . . 



Resembling A. irrm-ata 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. Length,. 

 13mm; width, 3mm. 



Head aud 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 tirst 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 oi'ange, 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 pquilatprally 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, 

 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 tliat 

 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- 



