No. 2370. BEETLES OF THE TRIBE TILLINI—WOLCOTT. 275 



Male. — Fifth ventral segment broadly not deeply emarginate; 

 sixth broadly emarginate, the angles rounded; last dorsal broader 

 and longer than last ventral, truncate at apex. (Plate 43, fig. 11.)* 



Female. — Fifth ventral segment truncate at tip; sixth semicircular; 

 last dorsal broader and longer than last ventral, the sides sinuately 

 narrowing to the very feebly, broadly emarginate apex. (Plate 43, 

 fig. 12.) • 



Type locality. — Madera Canon, Santa Rita Mountains, Arizona. 



Type, allotype, and paratype. — Cat. No. 23122, U.S.N.M. 



Described from eleven specimens, seven males and four females, 

 all of which are from the Santa Rita Mountains, Arizona, May 27, 

 29, 31, 1898 (Hubbard and Schwarz). 



A very distinct species; differs from pubescens Wolcott, to which 

 it is nearest related; by the proportionately shorter prothorax, the 

 wider elytra at base, the finer sculpture of elytra, the finer punctua- 

 tion of the metasternum, color, and abdominal sexual characters of 

 both sexes. 



Named in honor of Mr. E. A. Schwarz. 



CYMATODERA LONGICORNIS LeConte. 



Chiricahua Mountains, Arizona, June 11, 1897 (H. G. Hubbard), 

 (Male sexual characters, plate 43, fig. 13.) One male. 



CYMATODERA TOROSA Wolcott. 



Fort Grant, Arizona, July 19, 1897 (H. G. Hubbard); Williams, 

 Arizona, July 24, 1901 (Schwarz and Barber); Arizona (Morrison). 

 Four males; one with defective abdomen. 



CYMATODERA LATEFASCIA Schaeffer. 



Fort Grant, Arizona, July 12 to 21, 1897 (H. G. Hubbard); Oracle, 

 Arizona, July 11, 1898 (Hubbard and Schwarz) ; Hot Springs, Arizona, 

 June 21, 1901 (Schwarz and Barber) ; Chiricahua Mountains, Arizona, 

 July 1, 4, 1897 (H. G. Hubbard) ; Tuba, Arizona (plate 43, figs. 14, 15). 

 Sixteen males; four females. 



CYMATODERA USTA LeConte. 



Chiricahua Mountains, Arizona, June 20, 1S97 (H. G. Hubbard) ; 

 Sulphur Spring Valley, Arizona, June 27, 1897 (H. G. Hubbard); 

 Arizona (Morrison). Five females. 



CYMATODERA MYSTICA, new species. 



Robust, pale yellow, head, antennae, thorax, apical third of femora, 

 and basal portion of tibiae piceous; elytra pale yellowish with a 

 broad post-median fascia which scarcely attains the lateral margins 

 and is broadly interrupted at the suture, black, the anterior margin 

 of fascia distinct and but slightly irregular, posteriorly gradually be- 



