196 PROCEEDINGS OF THE NATIONAL MUSEUM. vol.59. 



and shining, second segment making two-fifths and with large 

 light-colored pubescent areas at base well-separated dorsally, but 

 reaching hind margin at sides, exposed part of seventh pubescent, 

 ventral spine tapering, twice as long as broad, ovipositor when dis- 

 sected out longer than antenna. Using width of head as a base, 

 the length of mesonotum ratio is 1.5; antenna, 2.5; ovipositor, 3.1; 

 wing, 4.3. 



Length of 20 pinned specimens, 3.7-5.1 mm. Average, 4.3 mm. 



Type.— Cat. No. 22575, U.S.N.M. Ten cotypes. 



Host. — Quercus gambelii Nuttall. 



Gall. — Globular bullet galls in clusters at base of strong sprouts 

 similar to those of Disholcapsis terrestris Weld on Quercus stellata 

 Wangenheim. When fresh the galls are yellowish tinged with more 

 or less rosy red, fleshy, 12-20 mm. in diameter, often distorted by 

 mutual pressure. Inside there is a distinct but not loose thin-walled 

 white larval cell. 



Type locality.- — Williams, Arizona. The type galls were collected 

 August 1, 1916, and living adults were cut out of them on September 

 15, 1916. Similar galls were collected at Flagstaff, July 25, Grand 

 Canyon, July 27, and near Monument Rock in the canyon east of 

 Santa Fe, New Mexico, on July 18. Old galls were seen at Prescott, 

 Arizona, April 14, 1918, and on June 27, 1918, at Soldier Camp in the 

 Santa Catalina Mountains, both old and fresh ones, the latter in all 

 stages of growth, only a few being full grown. 



3. DISHOLCASPIS GLOBOSA, new species. 



Plate 29, fig. 4. 



Agamic female. — Black; first segment of antenna, ring around eye, 

 vertex, two stripes on mesoscutum outside parapsides, basal third 

 of space between parapsides, disk of scutellum except dark spot in 

 center, legs except infuscated coxae, reddish-brown. Head coriaceous 

 on frons with slight median ridge above antennae, faint radiating 

 ridges about mouth, transfacial line 1.4 times facial, interocular area 

 1.35 times as broad as high, malar space over one-third eye, mandibles 

 2-toothed, palpi 5- and 3-segmented, antennae 13-segmented, third and 

 fourth subequal, 5-12 gradually shorter, last over twice as long as 

 preceding and incompletely divided by a transverse suture below 

 middle so that in some positions it would be counted as 14. Mesoscu- 

 tum smooth with setigerous punctures, parapsides deep, smooth, 

 broader behind and reaching two-thirds way to front, anterior and 

 parallel lines bare and polished. Scutellum rugose with setigerous 

 punctures, the rugose arcuate furrow at base with two deeper places 

 at sides. Propodeum with semicircular ridge above petiole reaching 

 two-thirds way to upper margin. Wings hyaline, veins brown, first 

 abscissa of radius angled, areolet large, reaching one-fourth distance to 



