102 KANSAS UNIVERSITY SCIENCE BULLETIN. 



to meet the constricted posterior process. The tegmina are slightly colored 

 with dark coriaceous spots at the base. The pectus and outer face of 

 femora black, but frequently light and concolorous. 



Length, 7 to 9 mm. Described from twenty-five specimens. 



Habitat: Oak Creek canyon, Arizona; Trenton Falls, N. Y.; Kansas 

 City, Mo.; Oregon (Canada mountains) ; Douglas and Cowley counties, 

 Kansas. 



2. — Stictocephala lutea Walk. Figs. 28, 29, 90. 



This species, although commonly found and reported from Kansas, has 

 not been collected by the wi-iter. Therefore, this description is based on 

 museum material only. It is somewhat smaller than S. inermis, but as 

 the two species intergrade to a considerable degree, it is difficult to draw 

 a fast and positive line between them. The specific differentiation of 

 lutea from inermis lies in the convex metopidium (with its slightly and 

 delicately carinated edges) , which in S. lutea has its apex caudad of the 

 middle of the pronotum. The dorsum is high and the sides well arcuated. 

 The pectus and outer face of the femora are black. 



Length, 7 to 7.5 mm. Described from twelve specimens. 



Habitat: Alabama; Mississippi; Arizona; Hayti; Sedgwick and Doug- 

 las counties, Kansas. 



3. — Stictocephala festiyia Say. 



The material at my disposal was accidentally injured, so that no de- 

 tailed description can be given at this time. 



3. — Genus Acutalis Fairmaire. 



'This genus is distinguished from Micrutalis by the fact that the Acu- 

 talis tegmina have five apical cells, while Micrutalis has but four. (See 

 figs. 80, 81, 82.) There has been some question among investigators con- 

 cerning the advisability of separating these two into different genera. 

 The tegminal characters, however, would seem to be of generic value. 



Van Duzee gives three species common to North America, but up to 

 this time only one has been collected in Kansas. 



Acutalis tartarea Say. Figs. 18, 19, 80. 



Pronotum black and shiny. Metopidium rising perpendicularly for a 

 short distance and then curving gently back over the abdomen. Small, 

 inconspicuous supi-ahumerals, light in color. Lateral edges of pronotum 

 light, extending to the posterior process, which is compressed into a point. 

 Posterior process pale. Face black and shiny; compound eyes and ocelli 

 light. Tegmina black with a purpHsh iridescence as far as the apical 

 region, where the tegmina become transparent; nei-vules heavy. Meta- 

 thoracic legs are heavily spined and of a greenish hue; other legs pale 

 yellow, hirsute, and with a dark spot on the distal end of the tibiae. 



Length, 4 to 5.5 mm. Described from fifteen specimens. 



Habitat: Virginia and Douglas county, Kansas. Van Duzee gives 

 the species as common throughout the Middle Atlantic States, and north- 

 ward through New York to Canada. 



