IJ.O PSYCHE [August 



CLASSIFICATION OF THE GALL-WASPS AND THE PARASITIC 

 CYNIPOIDS, OR THE SUPERFAMILY CYNIPOIDEA. III. 



BY WILLIAM H. ASHMEAD, A, M., S. D., ASSISTANT CURATOR, U. S. NATIONAL MUSEUM, 



WASHINGTON, D. C. 



Subfamil}' VI. — Xystinae. 



1869. Allotrioidae, Familie 3, Forster, Verb, zool.-bot. gesell. Wien, bd. 19, p. 



329^ 338- 



1877. Allotriina, Tribus, Thomson, Opus, ent., fasc. 8, p. 811. 



1890. Allotriina, Subfamily, Cameron, Monogr. Brit. Phyt. Hyin., vol. 3, p. 157, 



232. 



1897. AUotriinae. y Tribu, Kieffer, Monogr. des cynipides d'Eur., torn., i, p. 54. 



1902. AUotriinae, Subfamille 5, Dalla Torre et Kieffer, Wytsman's Gen. Ins. 

 Fam. Cynipidae, p. i. 



1903. Xystinae, Subfamily VI, Ashmead, Psyche, vol. 10, p. 8, 



The species falling in this subfamily are all smooth, highly polished, and are 

 easily recognized by the short, globose, or subglobose, abdomen, the second 

 segment being usually the largest, by the short thorax, the scutellum being convex 

 and smooth, rarely foveated at base, and by the hind tibiae having only o)ic apical 

 spur. All the species are genuine parasites and destroy various Aphids {Aphi- 

 didae). 



The group seems to form a connecting link between the Figitidac and the 

 Cynipidae^ many of the species closely resembling those in the genera Ccroptres, 

 JVeuroterus, Dryophanta, etc. 



Two tribes may be distinguished : — 



Table of Tribes. 



Pronotum laterally and the femora and tibiae toward apex, with broad, foliaceous 

 dilations ; claws with a tooth beneath . , . Tribe I. Loboscelidiini 



Pronotum and legs normal ; claws simple . . . Tribe II. Xystini 



Tribe I. — Loboscelidiini. 



This tribe is based upon the genus Loboscelidia Westwood, described from 

 Sulu Island, and its position is uncertain. Only a single species is known and that 



