430 Illinois Sfafe Lahonitonj of Naiural History. 



of prothorax and apex ; somewhat strongly punctured pos- 

 teriorly : and the end of the abdomen is more nearly perpen- 

 dicular than in orcichnitidis. Belovv, head and juga black, chest 

 yellow, abdomen tawny, legs yellow. Tegmina and wings 

 dilute vidlow ; sides of abdomen and chest yellowish. Lower 

 edge of prothorax compressed behind lateral angles. Length 

 2.5 mm. 



Described from two specimens. Types in authoi-'s col- 

 lection and in that of Mr. Van Duzee. 

 Hab. — .Irizona {Coquillett). 



99. A. BINOTATA, n. sp. 



Head yellow, with an irregular band between eyes, at the 

 base, and two dots near apex l)lack. Prothorax black, except- 

 ing a transverse bind at base and two large ovate spots an- 

 teriorly, the apex and lateral borders yellow ; posteriorly . irreg- 

 ularly sculptured and several scattered prominent punctures. 

 Tegmina and wings yellow, veins near apex brown, apical bor- 

 der wrinkled. Upper surface of abdomen not declivous, under 

 surface curving upwards, ferruginous. Legs yellow, tibite 

 marbled more or less with brown. Length 3 mm. 



Described from one specimen. Type in author's collection. 

 7/a6.— Cilif. (Van I)uze<)^ 



100. A. ILLINOIENSIS, n. sp. 



Head yellow, darker towards base : ocelli a little farther 

 from ea<;h other than from the eyes ; a narrow black band 

 along the base, including also base of prothorax ; two minute 

 punctures near apex. Prothorax smoky yellow, base with a 

 narrow black band, as stated above ; just above this band a 

 transverse yellow band, parallel to it ; from middle of this 

 yellow line a piceous band extending along the median line pos- 

 teriorly, just before apex dilating into a large pyriform spot ; 

 two black dots on each side near front margin. Tegmina and 

 wings transparent, vitreous. Abdomen sloping from just be- 

 fore apex of posterior prothoracic process downwards and back- 

 wards, almost reaching apex of tegmina; large, yellow. Pectus, 

 tips of tarsi, and base of femora black, legs tawny. Length 4 

 mm. 



Described from one specimen collected by C W. Strom- 

 berg. Typo in author's collection. 

 y/a6.— Galesburjf, Illinois. 



