March, 1917.] DaVIS : NeW CiCADAS FROM LoWER CALIFORNIA. 10 



wings clear. The veins of both the fore and hind wings are orange in color 

 except those of the marginal cells which are inconspicuously darkened ; the 

 membranes at the base of both pairs of wings are also orange colored and 

 only slightly brighter colored than the veins. The head is orange both above 

 and below, with a fuscous spot on the front and a broken black band extend- 

 ing between the eyes ; the tip of the rostrum and the terminal joints of the 

 antennae are fuscous. Pronotum orange with four linear fuscous marks, on 

 each side of the median grove anteriorily, and two dots centrally near the 

 posterior margin. In one of the paratypes the two anterior streaks are want- 

 ing. Mesonotum orange with a central broken band of black extending on 

 to the mesothoracic cross ; anteriorily there are about three irregular clouded 

 fuscous spots on each side of the central, blackened area, and near the base 

 of each fore wing there is a black streak. Metanotum orange blackened near 

 the base of each hind wing, and with a central black spot, a continuation of 

 the dorsal band of the mesonotum. Dorsum of the abdomen orange with a 

 median black spot on each segment, the spots gradually growing smaller 

 toward the extremity of the body. Beneath orange with two inconspicuous 

 black spots at the base of each wing, both the fore and hind pairs, also small 

 and inconspicuous fuscous spots near the base of the legs. There is a dark 

 cloud centrally at the base of the abdomen beneath, except in the allotype, 

 which has the abdomen all orange. All of the legs are orange except the 

 claws, which are fuscous. 



Measurements (in Millimeters). 



Male Type. Female Allotype. 



Length of body 23 23 



Width of head across eyes 6 6 



Expanse of fore wings 52 64 



Greatest width of fore wing 9 10 



Greatest width of operculum 2.5 



Length of valve 5 



A glance at this insect gives one the impression of an entirely 

 orange-colored cicada with a black band between the eyes, and a con- 

 spicuous dorsal band of the same color extending from the hind mar- 

 gin of the pronotum to the end of the abdomen. 



Explanation of Plate 2. 



Fig. I. Clidophleps blaisdelli Uhler. 



Fig. 2. Clidophleps distanti var. truncata Van Duzee. 



Fig. 3. Clidophleps astigma Davis. 



Fig. 4. Okanagana aurantiaca Davis. 



