﻿AMERICAN CYNIPID GALL WARPS — WELD 331 



and Angels Camp. Similar galls have been seen on Quercvs engel- 

 munni at Santa Anita, Calif. Adults not included in the type series 

 have been reared from galls on Qu^rcus garn/ava at Siskiyou summit 

 north of Plolbrook, Calif. 



ANDRICUS MULTICOSTATUS, new species 



Fern-ale. — Straw yellow, head and thorax slightly darker, only 

 ventral valves and tips of mandibles infuscated. Head from above 

 transverse, as broad as thorax, cheeks short, not broadened behind 

 eyes, occiput not concave; from in front broader than high with a 

 median ridge above clypeus, malar space striate, half length of eye, 

 antennae 13-segmented, filiform. Mesoscutum (coriaceous, with 

 scattered hairs, without evident punctures, parapsidal grooves per- 

 current, no median. Scutellum rugose with two deep, smooth, shin- 

 ing pits, septum narrow. Carinae on pi-opodeum straight and par- 

 allel. Mesopleuron finely striate. "Wing hyaline, pubescent and cil- 

 iate, first abscissa of radius arcuate, second pale, only distal vein of 

 areolet evident. Tarsal claws toothed. Abdomen longer than head 

 plus thorax, higher than long, only tergites II and III showing on 

 dorsal margin, both smooth ; ventral spine slender, almost as long 

 as hind metatarsus. With the width of the head used as a base the 

 length of mesonotum ratio is 1.8; antenna 2.2; wing 4.0. Length 

 2.2 mm. 



ry;?e.— U.S.N.M. No. 60118: Holotype. 



Host. — Qimrcus sub turbineUa. 



Gall (pi. 16, fig. 9). — An axillai-y or terminal bud gall in fall. 

 Cylindrical with 10 to 20 distinct longitudinal ribs, up to .5 mm. long, 

 protruding far beyond the bud scales. Greenish with white spots 

 when fresh, the bulbous distal third smooth and reddish. 



Habitat. — The type was cut out alive on October 14, 1944, from a 

 gall collected at Prescott, Ariz., September 13, 1943, by Mrs. N. W. 

 Capron. She collected galls at Cherry and Prescott, Ariz., on Oc- 

 tober 4, 1935. and September 11, 1947, respectively. 



ANDRICUS PRESCOTTI, new species 



Female. — Black: antennae, palpi, legs distally and abdomen ven- 

 trally brown. Head from above transverse, as broad as thorax, ver- 

 tex bare, ocellar area punctate, cheeks broadened behind eyes, occiput 

 slightly concave; from in front broader than high, malar space over 

 half eye, without groove, front finely coriaceous. Antennae filifonn, 

 13-segmented. Pronotum pubescent except medially. Mesocutum 

 finely coriaceous with scattered hairs from punctures, parapsidal 

 grooves percurrent, a median notch or short groove behind, lateral and 



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