206 Journal New York Entomological Society. t Vo1 - xxvil. 



vestiture of rhnosa. While the pronotum is usually black edged pos- 

 teriorly with testaceous, there are occasional specimens in which it is 

 mottled each side with testaceous. 



I am indebted to Prof. L. M. Stohr of Ironside, Quebec, for a long 

 series of this species. On June 21, 1916, he collected a male; in 1917 

 he collected in all 39 specimens as follows: June 22, 2 males; June 

 23, 4 males; June 24, 3 males; June 26, 3 males; June 27, 6 males; 

 June 28, 7 males; July 2, male; July 19, male and female; July 22, 

 female; July 26, 5 males, 1 female; July 28, 2 males; July 30, male, 

 and Aug. 15, female. In 1918 he collected ten specimens as follows: 

 June 14, male; June 15, male; June 19, 3 males; June 20, female; 

 June 25, 2 males; July 30, male; July 31, male. In June, 1919, he 

 collected eighteen males and five females. These insects are alike 

 and very black in appearance with the venation of the front wings 

 somewhat thickened. When the wings are closed they show the nar- 

 row testaceous hind border of the pronotum, a spot each side at the 

 base of the fore wings, four spots arranged in a semi-circle in front 

 of the X> and the higher parts of the X itself usually touched with 

 testaceous. 



Prof. Stohr writes as follows concerning this species: "It is 

 almost exclusively on pines ; I have heard it, however, on cedar trees, 

 and in two instances on willows. Usually it perches at the very 

 extremity of the trees, often only a few inches below the terminal 

 bud, or at the end of the branches. In order to begin the hunting 

 one moves toward the cluster of trees from whence the song seems to 

 proceed. It is, however, difficult to take one's bearings for the noise 

 now seems to come from the left and now from the right. Condi- 

 tions still get worse when the suspicious insect suddenly stops its 

 song while one is looking his eyes out in order to locate it, and abso- 

 lute silence follows the loud clamour. If one has not ascertained 

 with certainty the exact position of the insect, he might better try 

 his luck elsewhere, if he does not want to take too many chances. 

 Once a tree found on which an Okanagana sits, the ascent begins. 

 When the song has not stopped before, invariably it ceases then, 

 and from the top of the pine one has no other resource than to in- 

 spect branch by branch and with good luck one may thus detect the 

 Cicada perched on a twig, the dark color of the bark making it diffi- 



