34 PROCEEDINGS OF THE NATIONAL, MUSEUM vol.68 



Q. ohlongifoUa at Noj^ales and Patagonia and on Q. arisonica at 

 Oracle, Patagonia, Ramsay Canyon in the Huachuca Mountains and 

 at Bisbee. 



DIPLOLEPIS TECTURNARUM (Kinsey) 



Andricus tecturnarum Kinsey Bull. Amer. Mus. Nat. Hist., vol. 42, 1920, pp. 312, 

 384, pi. 25, figs. 30-33. 



This species was described from an unknown oak from San Luis 

 Potosi, Mexico. The writer found the galls very abundant on Q. 

 undulata at Tijeras, N. Mex., in April, 1918, and again on November 

 1, 1921 (adults emerging by hundreds February 20 to March 9, 

 1922). Galls on this oak were seen also in Blue Canyon and Nogal 

 Canyon near Socorro, at Hillsboro and Kingston, in the Burro 

 Mountains and in Arizona at Hackberry and Ashfork (flies emerg- 

 ing February 14). The galls were also very common on Q. grinea at 

 Magdalena, N. Mex., in November, 1921, the flies emerging in large 

 numbers February 20 to March 8. Galls were seen at Williams, 

 Ariz., also. One cluster of the galls was collected on Q. gambelii 

 near Magdalena, flies emerging February 4r-20. At Oracle, Ariz., a 

 few galls occurred on Q. anzonica, adults emerging March 9. Here 

 the galls are hard to distinguish from nublla when seen up in the 

 tree, but in hand the difference in structure is at once apparent. 

 At Las Vegas Hot Springs galls on an unknown oak contained 

 pupae on October 12 and adults emerged January 13, February 20, 

 and March 8. At Shoemaker, Rowe, Glorieta, Tijeras, and Mag- 

 dalena galls were seen on what may have been Q. fendleri. The 

 galls were also seen at Fierro and in Arizona in tlie Huachuca and 

 Patagonia Mountains and about Prescott. 



Only a badly dilapidated paratype has been available for direct 

 comparison of the adults. Cut from a gall collected in September 

 over forty j^ears before it is naturally paler than fresh specimens 

 emerging naturally. A series of fifty measured specimens from one 

 host and locality shows a range in size of 1.75 to 2.45 mm. Average 

 2.12 mm. 



DIPLOLEPIS TENUICORNIS (Bassett) 



This species was described from an unknown oak from the ]\Iule 

 Pass Mountains, Ariz. The type galls in the American Entomologi- 

 cal Society seem to be on Q. a?izonica. The writer collected galls 

 on arizonica in December at Oracle in the Santa Catalina Mountains 

 and reared adults in March. 



DIPLOLEPIS UNICA, new species 



Female. — Black; the head, antennae, tegulae, margin of parapsidal 

 grooves, and legs more or less brownish. Head coriaceous; from 



