NO. 1102. PBOCEEDIXaS OF TRIJ XATIOXAL MUSEUM. 129 



29. COMPSODRYOXENUS MACULIPENNIS, new species. 



G(dl. — The gall produced by this species, and from which the Hies 

 were reared, is confused in the collection ^yitll Andricns coxii, Bassett, 

 and the resemblance between them is so close that I am unable to 

 separate one from the other, although it is possible there may exist 

 some ditt'erence. 



Galliiij. — Female. Length, L'.() to 4 mm. Head, thorax, and middle 

 tibia' and posterior femora and tibiie brown; cheeks, antenme, and 

 legs, with the above exceptions, pale yellowish brown. 



Antennie 14-jointed, reaching to base of abdomen. Thorax slightly 

 transversely rugulose, the parapsidal grooves entire, the groove on the 

 scapulic distinct. Wings hyaline, veins brown, the margins of basal 

 vein, a spot before tlie break in the anal vein, and a large blotch at 

 base of marginal cell, including its basal nervure, brown; other char- 

 acters as described in the generic description. 



Ti/pe.—^o. 3084, U.S.^S^.M. 



All females, which issued from the galls May to 19, 1883. The galls 

 were taken on a live oak in Arizona by H. Iv. Morrison. 



:^0. COMPSODRYOXENUS BRUNNEUS, new species. 



GaU. — The gall of this si)ecies was likewise confused in the collection 

 with a similar gall {AiKlricus cliri/.solepidis), occurring on (^K chrysolepis 

 in California, but I can distinguish two kinds of galls, although both 

 bear the same number (2971'). Both are very mucli alike externally, 

 but one is polythalamous, the other monothalamous, and I belit^ve the 

 latter is the one producing the present gallfly. 



GallJJi/. — Female. Length, 2 to 2.6 mm. Head, antennie, thorax, and 

 legs pale or light brown, the antennie toward tips dusky, the pleura 

 blackish, tlie abdomen black, polished, the posterior legs dusky or 

 darker than the others. Wings hyaline, marked as in previous species. 



The species is closely allied to the preceding, but it is smaller, paler 

 colored, and has but thirteen joints in the antenni>^. 



Type.—:so. 3085, U.S.X.M. 



Specimens reared June 9, 1883. Under this number the Becord Book 

 contains the following: 



January 13, 1SD3. — Received to-day from Mr. H. W. Turner, of Martinez, California, 

 a lot of elongate, oval twig-galls, found on scrub-oak; some of tbeni -vrcre collected 

 January 3 in Pine Canyon, Mount Diablo, Contra Costa County, and some from 

 ap])arently the same species of oak at Martinez ; placed galls from different localities 

 into different bottles to breed. 



Genus TRISOLENIA, Ashmead. 

 31. TRISOLENIA PUNCTATA, new species. 



Female. — Length, ~k'1 mm. Tliis species in general appearance closely 

 resembles T. saUata,hiit the abdomen is darker, being reddish piceous, 

 more globose, and distinctly finely punctate, the second segment only 

 Proc. J^. M. vol. xix 9 



