8 Journal New York Entomological Society, t'^'o'- >^xix, 



Tibicen arizona (Davis). 



When the original description of this species was published in this 

 Journal for March, 191 6, only males had been examined, all col- 

 lected by Prof. F. H. Snow in the Santa Rita Mts., Arizona. Since 

 then a female collected by Prof. Snow at the same place and time 

 has come to hand. It is like the males in general color and mark- 

 ings. It expands 54 millimeters; length of body 17 millimeters; last 

 ventral segment with the shallow notch broadly open and its sides 

 slightly sinuate. In the allied species castaiica, the notch is broadly 

 opeii, but is double. 



Several specimens of a species closely resembling ari::ona, from 

 Cuernavaca, about 40 miles south of Mexico City, Mexico, have been 

 examined. One bears a label reading " Sclymbria modcsta Dist.," 

 with "' (Uhl) " in the lower left-hand corner. Distant's modcsta, 

 now placed in the genus Ollanta, has the '" tympanal coverings large, 

 their apices subacute anteriorly but not interiorly covering cavities.'' 

 In aricoua and the species from Cuernavaca. the tympana completely 

 cover the cavities. 

 Okanagana mariposa Davis. 



The following California recgrds of this species, originally de- 

 scribed from Mariposa County, were received in 1920: Upland, San 

 Bernardino Co., June 18, 1920, male; July i, 1920, five males, four 

 females; July 2, 1920. male and two females (Miss E. P. Hewlett). 

 Angeles Forest, Barley Flats, 5,000 ft., June 24, 1918, two females 

 (Victor Duran). Mr. Duran writing of this species states that he 

 found it " extremely abundant in the chaparral in the vicinity of 

 Barley Flats. Sierra Madre Mountains on June 24, 1918. . . . That 

 day and the one preceding were hot and insects of all kinds were 

 most unusually abundant." Alhambra, Los Angeles Co., July 4, 

 1920, twenty-nine males and nineteen females; July 6, 1920, two 

 males and ten females. Under date of July 8, 1920, Mr. Duran 

 wrote of this lot, they occurred " in the chaparral of the upper parts 

 of the canyons of the Tujunga and West Fork of the San Gabriel 

 River, altitude 4,000 to 5,500 feet." Nevada Co., August 11, and 

 August 13, 1920, two males (E. R. Leach). 

 Okanagana rimosa (Say). 



In this Journal for 1919. page 203, it was stated that Say's two 

 specimens of this species, collected by Nuttall in 1811, no doubt came 



