1908.] NATURAL SCIENCES OF PHILADELPHIA. 381 



of the insertion of the caudal limbs. Tegmina of the dorsal color. 

 Cephalic and median limbs tawny, obscurely and imperfectly annulate 

 and marbled with darker. Caudal femora vinaceous-cinnamon, 

 marbled and washed with vandyke brown; caudal tibiae very pale 

 glaucous, becoming ochraceous proximad, entirely overlaid with fine 

 purplish-red mottlings, spines and spurs with their apical halves black. 



Measurements. 



Length of body, 21.2 mm. 



Length of pronotum, 4 " 



Length of tegmen, 17.6 " 



Length of caudal femur, 12.7 " 



The male specimen from Yuma County, Arizona, recorded by the 

 senior author* as Horesidotes cinereusl is seen on re-examination and 

 comparison with the recently acquired material to be nearer papagensis, 

 to which we tentatively refer it. 



The type of papagensis was taken among leaves under bushes on the 

 canyon bottom, and showed no inclination to leave the ground. 



SCYLLINA St&l. 

 Scyllina calida Bruner. 



One female specimen of this species was taken at Tucson, July 26, in 

 short grass growing about the end of a drain. Its movements were 

 quite awkward. 



The previous records of this species in the United States are from 

 San Bernardino Ranch, Cochise County, and Baboquivari Mountains, 

 Pima County, Arizona. 



PSOLOESSA Scudder. 

 Psoloessa texana Scudder. 



The series of specimens of the genus Psoloessa taken in Arizona in the 

 summer of 1907 numbers one hundred and six. After considerable 

 study of this and other material, the authors are under the necessity of 

 considering the four nominal species of this genus (texana, ferruginea, 

 maculipennis and huddiana) as one, for which they select the name 

 texana as it has page priority over ferruginea and maculipennis, 

 huddiana being of much later date. 



To some this may appear unwarranted as characters, such as the 

 angle of the face, proportions of the lateral f oveolse of the head and the 

 width of the fastigium, as well as the color pattern, have been used in 



* Proc. Acad. Nat. Sci. PMla., 1904, p. 563. 

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