ART. 10 GALL-INHABITING CYNIPID WASPS WELD 103 



anna, River Junction, and Madison, Fla. ; at Dothan, Ala. ; at Fair- 

 fax, S. C. ; at Fredericksburg and East Falls Church, Va, ; at Chesa- 

 peake Beach, Md. ; at Palestine, Mineola, and Trinity, Tex. ; and at 

 Hugo, Okla, Dr. J. C. Bradley collected galls in Georgia and 

 A. B. Gahan at Berwyn, Md. 



AMPHIBOLIPS CINEREA (Ashmead) 



The writer has collected galls on Q. cinerea at the following Flor- 

 ida localities : Jacksonville, Gainesville, Ocala, St. Petersburg, and 

 Madison. The National Museum has some from Brooksville and 

 from " Georgia." At Gainesville April 23, 1914, the flies were about 

 ready to emerge and a supply was secured by cutting open the 

 galls. Some galls Avere noticed in which was a little hole as though 

 a parasite had recently issued. When one of these was cut open a 

 small chalcid was found inside among the fibers and a living pro- 

 ducer in the central cell. It soon became evident that the chalcid was 

 chewing a Avay in instead of out in order to attack the maker even 

 after it had completed its transformations. Fragments of adults 

 inside the cell frequently showed that the dangers of parasitism are 

 not entirely over until the maker actually gets out of the gall. 



AMPHIBOLIPS CITRIFORMIS (Ashmead) 



This species was described from Q. phellos from " Florida," the 

 adults emerging the first week in May. The type galls are bud galls. 

 The writer has collected galls at Jacksonville and Daytona but never 

 reared the flies. 



AMPHIBOLIPS COELEBS (Osten Sacken) 



As this species has been known from a single male from a gall on 

 the red oak, Q. maxima at Washington a description is here given of 

 the female from a gall on the same oak and from nearly the same 

 locality. 



FnnaJe. — Head nearly black; thorax, legs, antennae, mandibles, 

 and abdomen red, the latter infuscated posteriorly. Head narrower 

 than thorax, rugose with fine radiating ridges on malar space, an- 

 tennae 13-segmented, filiform, face slightly pubescent. Thorax cov- 

 ered with pubescence not dense enough to obscure the sculpture. The 

 indistinct median and parapsidal grooves rugose like rest of meso- 

 scutum, separation between parapsidal grooves behind not greater 

 than width of groove. Disk of scutellum reticulate, scarcely grooved 

 in median line, two pits at base. Pleurae rugose. Wing subhyaline 

 with first cross-vein heavy and a heavy cloud in base of the radial 

 cell and about the indistinct areolet, cubitus reaching basal. Legs 

 without infuscation, claws with tooth. Abdomen not quite as long 

 as head and thorax, lengths of tergites along dorsal curvature as 



