28 PROCEEDINGS OF THE NATIONAL MUSEUM. vor,. 61. 



Length of one pinned specimen 3.1 mm. 



Tyjie.—Qat. No. 23170, U.S.N.M. Type female. Paratype in bal- 

 sam with author. 



Host. — Quercus velutina Lamarck. 



Gall. — Produced in autumn on small acorns of the current season, 

 bui-sting- out between the acorn and the cup. They secrete honey dew 

 while growing. There are sometimes 2 to 3 galls on one acorn. 

 When detached they are triangular in outline, flattened, the larval 

 chamber transversely placed in the upper half of the gall and below 

 it a spongy region which decays away after the gall drops, giving 

 it an excavated base. 



HaMtaf.— The type flies were bred from galls collected October 5. 

 1917, at Ironton, Missouri, the flies issuing May 5, 1919. Similar 

 galls have been seen at Ithaca, New York; Glencoe, Illinois; East 

 Falls Church, Virginia ; and at Wharton, Texas. 



CALLIRHYTIS PATIENS (Bassctt). 



Andricus patiens Bassett, Trans. Araer. Ent. Soc, vol. 26, 1900, p. 312. 

 This species was described from over 50 specimens taken ovipos- 

 iting April 8-11, in the buds of Quercus Uicifolia. The types have 

 the general habitus of the species from pip galls in acorns and a life 

 history similar to that of operator (Osten Sacken) is suggested. It 

 remains for some one in the region where Uicifolia occurs to collect 

 acorn galls and rear this species and work out the life history. As 

 the tarsal claws are simple the species is here transferred to CaUi- 

 rhytis. Using the width of the head as a base, the ratio of the length 

 of mesoscutum is 1.25, antenna 2.12. ovipositor 3.09, wing 3.8. Range 

 in size of five paratypes 2.4-3.4 mm. Average 2.9 mm. 



CALLIRHYTIS PEKDITOR (Baasett). 



Andricus perditor Bassett, Trans. Amer. Ent. Soc, vol. 26, 1900. p. 113. 



Acraspis perditor Bassett, Dalla Torre, and Kieffer in Wytsman Gen. 

 Ins. Cynipidae, 1902, p. 58.— Dalla Torre and Kieffer, Das Tierreich, 

 Lief. 24, 1910, p. 412. 

 Like halanosa Weld, this species is described as producing early 

 spring galls which secrete honey dew on immature acorns of the pre- 

 vious season, but on a different host, Quercus Uicifolia Wangen- 

 heim instead of on Quercus velutina Lamarck. The species was de- 

 scribed from a single female (cut out of a gall) whose wings were 

 " not fully expanded." This has led Dalla Torre and Kieffer to trans- 

 fer it erroneously to the genus Acraspis. The type is in the collection 

 of the American Entomological Society and it is not an Acraspis, 

 as the wings are normally developed but crumpled. This type was 

 compared with hal-anosa, halanoides, halanaspis, and lalanopsis of 

 the present paper and found to be smaller than any of these species 



