242 PROCEEDINGS OF THE NATIONAL MUSEUM. vol.59. 



one more was found alive in cage March 23, 1918. These galls were 

 also seen at Houston, Wharton, Victoria, Cuero, and Austin, Texas, 

 in October, 1917, and at Sabinal and Kerrville, Texas, in July, 1918. 

 The galls are found full grown by the end of July, contain pupae in 

 October, and adults emerge in November. 



36. WELD 405. 



Plate 37, fig. 32. 



Host. — Quercus rubra Linnaeus and Quercus nigra Linnaeus. 



Gall. — A polythalamous, somewhat globose, gall with a smooth 

 brown surface, 15 mm. in diameter, attached at the crown and 

 hidden under humus. When mature the epidermis disintegrates 

 revealing a cluster of whitish, longitudinally ridged, relatively large 

 woody cells. 



Habitat. — Old galls were collected at Ironton, Missouri, on Quercus 

 rubra October 5, 1917, and at Gainesville, Florida, October 23, 1919, 

 on Quercus nigra. 



37. WELD 704. 



Host. — Quercus fendleri Leibmann. 



Gall. — Cylindrical, acuminate at apex, thin-walled, smooth, 5 mm. 

 long by 2 mm. in diameter, attached near fork at base of small sprouts 

 at surface of ground, very easily detached. 



Habitat. — Collected at Trinidad, Colorado, July 11, 1916, and one 

 at Morley, Colorado, April 2, 1918. 



38. WELD 706. 



Host. — Quercus gambelii Nuttall and probably other Rocky Moun- 

 tain oaks. 



Gall.— Cluster of several dozen hairy brown cells that are probably 

 fleshy when fresh, at end of vigorous etiolated shoots coming up 

 under loose stone piles or under mass of humus. It is probably a 

 spring gall. The clusters measure up to 2-3 cm. in diameter. 



Habitat. — Collected old galls in July, 1916, at Trinidad, Colorado; 

 Las Vegas, and Rito de los Frijoles near Buckman, New Mexico; 

 Grand Canyon and Flagstaff, Arizona. 



39. WELD 707. 



Plate 37, fig. 35. 



Host. — Quercus emoryi Torrey. 



Gall. — Similar in size and appearance to that of Eumayria florid ana 

 Ashmead. 



Habitat.— Old galls found at Prescott, Arizona, April 13, 1918. 



