382 PROCEEDINGS OF THE NATIONAL MUSEUM vol. 88 



Male. — Similar in size and habitus to female, but with frons more 

 deeply concave and frontal hairs more numerous and longer ; antennal 

 club longer and more slender, definitely longer than rest of antenna ; 

 anterior margin of pronotum with longer setae; pronotal asperities 

 usually smaller; venter of last abdominal segment slightly shorter, 

 with setae diverging from median line. 



Type locality. — Catalina Springs, Ariz. 



Additional localities. — Hot Springs and Sabino Canyon, Ariz. 



Host. — Pa/rkinsonia microphylla Torrey. 



Type material. — Holotype, allotype, and 89 paratypes, U.S.N.M. 

 No. 52949. 



Remarks. — Holotype, allotype, and 74 paratypes were collected and 

 bred from Parkinsonia at Catalina Springs, Ariz., by Hubbard and 

 Schwarz ; 3 paratypes from Hot Springs, Ariz., Barber and Schwarz ; 

 12 paratypes collected from Parkinsonia nnicrophyll<i at Sabino Can- 

 yon, Ariz., by George Hofer. 



RENOCIS MACLAYI (Brnck), new combination 



Pseudocryphalus maclayi Beuck, Bull. Southern California Acad. Sci., vol. 35, 

 pt. 1, p. 35 ; pt. 2, p. 122, 1936. 



Female. — Dark brown, color pattern variegated with dark brown 

 and nearly white scales and setae; paratype 1.82 mm. long, about 

 twice as long as wide. 



Frons with a short, sharp, median point on epistomal margin, with 

 a fringe of light yellow-cinereous setae covering more than basal half 

 of mandibles; transversely, arcuately impressed just above epistoma, 

 broadly longitudinally impressed in median line; surface shining, 

 finely, rather closely punctured, with fine, moderately sparse granules 

 over most of surface; with a more strongly granulate, moderate ele- 

 vation at each side, just mesad of upper angle of eye; surface mostly 

 concealed by rather coarse recumbent and suberect setae, cinereous 

 below and in median line, brown above. Eye about 3 times as long 

 as wide, finely granulate, the inner margin broadly sinuate. Antenna 

 with club slightly more than twice as long as wide, considerably 

 shorter than remaining visible parts, with 3 nearly straight, annulate- 

 setigerous sutures. 



Pronotum about 1.5 times as wide as long, widest well in front of 

 base, which is broadly procurved; sides strongly arcuate behind, 

 strongly narrowed anteriorly ; constricted and transversely impressed 

 just behind the nearly straight, slightly sinuate front margin; sur- 

 face dark brown, shining, finely, rather closely punctured, with inter- 

 spaces minutely reticulate-granulate; with two groups of rather 

 coarse, high asperities at each side ; surface clothed with small, wide, 

 recumbent, light-cinereous scales, which are nearly white over most 

 of surface, but are brown in a median, irregular diamond-shaped or 



