1922] Olsen: Cicadella of North America 365 



Cicadella occatoria Say. 



Described by Say from Indiana. Fowler, 1900, gives a very 

 fine color figure of this insect. It is variable to some extent in 

 the amount of green and yellow color, also the markings show 

 a gradation of various tints from reddish-brown to brown and 

 black. 



Dr. Ball, 1901, lists Tettigonia cc-mpta Fowler as a straight 

 synonym of this. I would hesitate that our common form in 

 the south-eastern states should be identified with Tettigonia 

 compta because of Fowler's description and particularly his 

 color figure which is very well executed. Therefore, I would 

 separate this form from occatoria and consider it a a sub-species 

 at least, to which, I am sure, it is entitled. Dr. Ball, 1901, 

 records it as common in Florida, Mississippi and Texas. To 

 this must be added Gibson and Cogan, 1905, common in 

 eastern Missouri; De Long, 1916, specimens swept from various 

 places in Tennessee; Metcalf, 1915, two localities in North 

 Carolina; and Lathrop, 1917 and 1919, three localities in South 

 Carolina. The type locality is in Indiana. Its range extends 

 far to south of our fauna. 



Cicadella occatoria sub-species compta Fowler. 



Comparing this form with the true occatoria it will at once 

 be seen to be of much redder color, but lacking the green. On 

 the vertex the two outer of the four red vittae are much broad- 

 ened on the reflexed portion of the face, and are subdivided into 

 two or three narrower stripes on this place; they are really a 

 continuation of a series of ten or twelve red arches on either side 

 of the face, which extend up to this part of the vertex and take 

 up with the stripes running back over the pronotum and 

 clavus. The inner pair of vittae form a decided loop at a dis- 

 tance of two-thirds from the base of the head and run back 

 over the pronotum, scutellum and clavus. The fifth or central 

 vitta commences on the pronotum and runs back over it and 

 the scutellum. 



The red vittae of the elytra are much broadened and leave 

 only narrow, yellow vittae between them. The apex of the 

 elytra is hyaline and the characteristic "blackish tip with 

 yellowish band" as mentioned in Say's description, is wanting. 



