﻿AMERICAN CYNIPID GALL WASPS — WELD 325 



Genus LIODORA Foerster 



LIODORA COMATA, new species 



FemaJe. — Black ; mandibles, palpi, base of antennae and legs yellow- 

 ish white. Head from above transverse, as broad as thorax, cheeks not 

 broadened behind eyes; from in front wider than high, malar space .3 

 eye, without groove, antennae M-segmcntcd, lengths of first five as 9 : 

 6:11:10:9. Sides of pronotmn, mesoscutum, and mesopleuron 

 smooth, bare, polished. Parapsidal grooves narrow, percurrent. A 

 distinct suture between mesoscutum and scutellum. Two smooth, shal- 

 low pits at base of scutellum, disk smooth, punctate and pubescent 

 behind and overhanging propodeum. Carinae on propodeum slightly 

 bent. Wing pubescent and ciliate, radial cell five times as long as 

 broad, veins brown, areolet small, first abscissa of radius arcuate. 

 Claws with a strong tooth. Abdomen as high as long, tergites smooth, 

 all visible on dorsal margin. Ventral spine stout, twice as long as 

 broad, not bristly. Ovipositor curved at tip. Length 1.45-2.15 mm. 

 Average of 30 specimens 1.7 mm. 



Male. — Head broader than thorax. Antennae 15-segmented, lengths 

 of first five as 9 : G : 16 : 11 : 10, third bent and lighter in color. Abdo- 

 men with a short pedicel. Length 1.45-1.8 mm. Average of six 

 1.64 mm. 



Types.— Tj.^.'^.'M. No. 60112: Type female, allotype, and six 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. — Quercus aTba. 



Gall (pi. 16, fig. 11). — Conical, 3.0 by 1.4 mm., tan, thin walled, cov- 

 ered with crinkly white matted hairs. Produced singly at edge of 

 leaf in early spring vfhen leaves are only an inch or so long. 



Habitat. — Type locality East Falls Church, Va. Adults emerged 

 April 26 and May 4-15. 



Genus AMPHIBOLIPS Reinhard 



AMPHIBOLIPS GLOBUS, new species 

 SEXUAL GENERATION 



Female. — Head, thorax, antennae, legs except fore and middle tibiae 

 and tarsi, black; abdomen red to almost black. Head rugose, from 

 above narrower than thorax, cheeks not broadened behind eyes ; from 

 in front broader than high, malar space .4 eye, with radiating ridges, 

 antennae filiform, 13-segmented. Sides of pronotum coarsely reticu- 

 late. Mesoscutum coarsely rugose, the percurrent parapsidal and 

 median grooves also rugose. Scutellum more coarsely rugose behind, 

 pits shallow, a median depression on disk hardly apparent. Meso- 



