﻿328 PROCEEDINGS OF THE NATIONAL S'lUSEUM vol. 102 



ANDRICUS ALBICOMUS, new species 



Female. — Red, often with some black on occiput, foveae, propodeuni, 

 and parts of abdomen. Head coriaceous; from above vertex bare, 

 cheeks slightly broadened behind eyes, occiput not concave ; from in 

 front malar space 0.4 eye, without groove, antennae filiform, 13-seg- 

 mented. Mesoscutum microcoriaceous, shining, longer than broad, 

 with scattered hairs, parapsidal grooves percurrent. Scutellum rugose, 

 pubescent, margined on sides, foveae smooth. Mesopleuron bare, 

 smooth. Wing hyaline, pubescent and ciliate, veins pale and slender, 

 radial cell four times as long as broad, areolet and cubitus almost 

 ol)solete. Claws toothed. Abdomen longer than head plus thorax, 

 almost as high as long, lengths of tergites as 45 : 18 : 8 : 4: 4, slightly 

 gibbous below petiole, the curved tip of ovipositor projecting beyond 

 sheaths. Ventral spine longer than hind metatai-sus. With width 

 of head as a base, the length of mesonotum ratio is 1,4; antenna 2.9; 

 wing 4.9; ovipositor 5.8. Range in length 1.5-2.4 mm. Average of 

 53 specimens 2.0 mm. 



Close to Andricus kingi Bassett, whose disk is smooth back of septum 

 and antennae are 14-segm8nted. 



Types. — U.S.N.M. No. 60114: Type and 10 paratypes. Paratypes 

 also in A.M.N.H., C.M.N.H., A.N.S.P., C.A.S., and M.C.Z. 



Host. — Quercus garryana. 



Gall (pi. 16, fig. 5). — A thin- walled conical gall about 5 mm. in 

 diameter on the under side of a leaf in the fall, densely covered with 

 pedicelled, stellate grayish- white hairs. Inside is a transverse basal 

 larval cell with a distal cavity opening at apex. 



Habitat. — Tlie types were cut out October 18, 1949, from galls col- 

 lected at Cave Junction, Oreg., on October 14, 1948. Others emerged 

 in outdoor breeding cage on April 1, 1950. Galls were seen also at 

 Corvallis and at Siskiyou summit, Oregon, on United States High- 

 way 99. 



ANDKICUS CHICO, new species 



Female. — Light brown ; eyes, ocelli and sheaths black. Head coria- 

 ceous ; from above transverse, cheeks broadened behind eyes, occiput 

 concave ; from in front interocular area wider than high, malar space 

 one-third eye, without groove, fan-striae about mouth, antennae fili- 

 form, 13-segmented. Mesoscutum coriaceous with short uniformly 

 distributed pubescence from distinct punctures, parapsidal grooves 

 percurrent. Septum between the foveae broad, disk rugose. Meso- 

 pleuron smooth under hind wing, striate below, almost bare. Wing 

 pubescent and ciliate, veins beyond second cross-vein pale, areolet dis- 

 tinct. Claws toothed, Carinae on propodeimi straight and parallel. 



