Vol. XXVli] ENTOMOLOGICAL NEWS. 127 



the end of the ahdomen. Near the end of the posterior border the 

 wings are densely margined with long brown hairs, none on the basal 

 portion. On the anterior margin the hairs are rather short and sparse. 

 The posterior half of the wing is shaded a decided but not very dark- 

 brown and is clothed with short hairs, as is also the hind wing; the 

 second longitudinal vein has heavy dark brown spines. Hind wings 

 nearly as long as the fore, no brown longitudinal shading as in the fore 

 pair; on the anterior margin the hairs are rather short and dense. 



Abdomen spindle-shaped, abruptly narrowing at the seventh seg- 

 ment. One or two short, weak, curved, inconspicuous spines on the 

 lateral margin of each segment. On the eighth and ninth there are 

 eight very long stiff spines ; two much shorter ones at the end of the 

 abdomen. 



Described from a single female taken on oats with Acolo- 

 I'hrips bicolor at Gainesville, Florida, April 26, 1914. 

 Type in the National Museum. 



Key to North American species of AcolotJirips* 



1. Fore wings with dark cross bands. 



a. Wings with cross veins. 



b. Last 4 segments of antennae much longer than the 5th ; 

 abdominal segments 2 and 3 and the posterior half of I 



white or yellow Ae. bicolor, Hinds. 



bb. Last four segments of antennae little if any longer 

 than the fifth. 



r. Prothorax and segments 2 and 3 of the ab- 

 domen white Ae. albocinctus, Haliday. 



cc. Without white bands Ae. fasciatits, Linn. 



cia. Wings without cross veins. Last four segments of antennae 

 about 1.25 times as long as the fifth Ac. nastnrtii, Jonesf 



2. Fore wing with a dark longitudinal band along posterior margin. 



a. With normal veins in the anterior wings. 



b. Antennal segment 3 about as long as i and 2 together; 



segment 4 brown Ac. kmvanaii, Moulton 



bb. Antennal segment 3 about 1.5 as long as i and 2 to- 

 gether; basal half of segment 4 yellow, 



. /r. floridensis, n. sp. 

 aa. Anterior wings without veins Ac. lonciiccps, Cra\vf<>nl 



* Modified from that of Moulton, KJII, U. S. Bur. Ent., Tech. Ser. 

 No. 21. 



t Hood, in Ent. News, xxvi, p. 162, expresses the opinion that this 

 species is the male of Ae. kuzt'cmnii. 



