HaCKMAN : ClCADELLA HiEROGLYPHICA. , 191 



External genitalia. Fcmalo: Last ^•cntl•al sefinient about as wide as long, 

 lateral margins triangularly luoduccd; pygofers long and narrow, equaling or 

 slightlj' exceeding ovipositor, bearing a few stout hairs. Male: Last ventral 

 segment less than twice as wide as long; plates long, broad at base, but 

 tapering to long acute apices, margins fringed with short hairs; jiygofers long 

 and narrow, equaling or exceeding plates and bearing stout hairs. 



Internal male genitalia. Styles short, distinctly bent in at point of attach- 

 ment to connective by a large, heavily chitinized lobe, then curving outward 

 and tapering gradually to bhmt apex, with an outwardly projecting process; 

 connective slender, Y-shaped, stem of Y broadening to broad base; oedagus 

 with pair of short processes extending dorsad from its point of attachment to 

 connective, a long process leaving it dorsally from a point a little past its 

 middle, and a similar longer one leaving it apically, the latter to the left of 

 the former. These two processes are narrow and long, narrowest at the base, 

 and widening to a point shortly before the apex, where they are the widest, 

 the right one wider than the left one, and then tapering to the acute tips. A 

 pair of somewhat narrow triangular chitinous processes extend from the base 

 of the anal tube to the main body of the oedagus. 



//o.s"/.^. Taken abundantly on willows. 



The following variety occurs along with the typical forms: 



Cicadella hieroglyphica var. dolobrata (Ball). Its bibliography 



follows : 



Tettigonia hieroglyphica var. dolobrata Ball, Proc. la. Acad. Sci., p. 52, pi. 

 3. fig. 2, 190L 



Tettigonia hieroglyphica var. dolobrata DeL., Tenn. St. Bd. Ent., Bui. 17, p. 

 20, 1916. 



Cicadella hieroglyphica var. dolobrata Van D., Cat. Hemip. N. A., p. 597, 

 1917. 



Cicadella hieroglyphica var. dolobrata 01s., Bui. Am. Mus. Nat. Hist., 

 xxxviii, p. 3, 1918. 



Cicadella hieroglyphica var. dolobrata Lawson, Kan. Univ. Sci. Bui., xii, 

 p. 86, 1920. 



Doctor Lawson describes this variety as follows: 



This is a smaller form than the preceding, appearing more robust. In color 

 it is typically black, retaining a few of the lighter markings of the typical 

 hieroglyphica on the front, vertex, pronotum and scutellum, and generally 

 having the claval sutures light. 



Genitalia as in the preceding form. 



Distribution: Occurs along with the typical form. 



Hosts: Willows. 



DISTRIBUTION. 



Doctor Ball gives the following: "This species, as a whole, is 

 very variable in size and color and recalls Oncometopia undata and 

 lateralis in their red, green and black forms. The varieties readily 

 fall into two series on structm-al characters. The first has hiero- 

 glyphica and dolobrata as the extreme in darkening up. These 



