﻿AMERICAN CYNIPin GALL WASPS — WELD 333 



than thorax, lengths of tergites as 15:4. length 1.7-2.15 mm. 

 Average of 15 specimens 1.83 mm. 



Types. — Specimens of the above description of male are in the 

 U.S.N.M., A.N.S.P., C.A.F., and the U.U.M. 



ANDRICUS PILULARIS. new species 



Feinale. — Related to Andricus pilula Bassett but entirely different 

 in color, being uniform amber. Antennae 13- instead of 14-segmented. 

 Mesoscutura microcoriaceous instead of pebbled, anterior lines scarcely 

 evident, median groove shorter but a dark median line is percurrent, 

 with uniformly distributed, short, appressed pubescence instead of 

 almost bare. Disk of scutellum more finely rugose, foveae smooth 

 instead of with parallel longitudinal ridges. Mesopleuron smooth, 

 without striae in center. Wing with a small but distinct areolet. 

 Hind fennir stouter. Carinae on propodeum slightly bent and en- 

 closed area smooth instead of rugose. Abdomen with all the tergites 

 visible on dorsal curvature, only the tip of sheaths projecting. Ventral 

 spine longer. Length 2.05-2.85 mm. Average of 12 specimens 

 2.45 mm. 



3/a7e. — Differs from male of pilula in having greatly bulging 

 eyes, the interocular space higher than broad and cheeks narrowed 

 behind eyes. Length 1.9-2.75 mm. Average of 8 specimens 2.28 mm. 



Type.—'U.S.^M. No. 60120: Type female, allotype, and two para- 

 types. Paratypes also in A.M.N.H., C.M.N.H., A.N.S.P., C.A.S., 

 and M.C.Z. 



Host. — Qicercus subturhinella. 



Gall. — Similar to galls of Andricus utriculus Ashmead and A. 

 pilula Bassett. Globular, about 4 mm. in diameter, projecting more 

 on upper side of leaf. 



Habitat. — The types are from galls collected at Wolf Creek, near 

 Prescott, Ariz., by Mrs. N. W. Capron, in June and July 1935. Living 

 adults were cut out of the galls on July 20 and August 15. Others 

 were sent August 1, 1947, and adults cut out August 7. One paratype 

 is from a gall on Quercus ohlongi folia., from Nogales. Galls have 

 been noted on Q. toumeyi., Q. suhmoUis, Q. ga7nbelii, and Q. diversi- 

 coloT. 



Genus ANTRON Kinsey 



ANTRON PILEUS, new species 



Female. — Amber. Head coriaceous; from above transverse, nar- 

 rower than thorax, occiput not concave, cheeks not broadened behind 

 eyes ; from in front broader than high, malar space .28 eye, without 

 groove, antennae filiform, 15-segmented. Sides of pronotum pubes- 

 cent. Mesoscutum shining, smooth and almost bare, parapsidal 



