THE CANADIAN ENTOMOLOGIST. 



ON THE GALL-MAKING MOTHS ON SOLIDAGO AND ASTER, 

 WITH DESCRIPTION OF TWO NEW SPECIES. 



BY AUGUST BUSCK, WASHINGTON, D. C. 



GnoriniGSchenia salinaris, n. sp. 



Labial palpi typical in shape, whitish, liberally sprinkled with black 

 and gray, without any black anniilation just before the apex, such as found 

 in the closely allied G. gallcesoUdaghiis, or at most with but a faint trace 

 thereof. Face, head and thorax bluish-white, suffused with fuscous and 

 brown scales. Fore wings elongate, pointed, narrower than in gallcesolid- 

 agi?iis ; coloration and pattern very similar to this species, with the rather 

 sharply-defined basal light area extending along the dorsum and spreading 

 out over the apical third of the wing, and with the large costal chocolate- 

 coloured area as in this species, but with ill defined blackish markings on 

 the dorsal edge near base, and with irregular, longitudinal blackish mark- 

 ings in the interior and a[)ical part of the dark costal area, not found in 

 gallcesolidagi7iis. Cilia whitish, heavily daubed with black and brown. 

 Hind wings light, ochreous-fuscous ; cilia yellowish. Abdomen light 

 fuscous, with the basal joints velvety-yellow above. Legs whitish, strongly 

 suffused with black and brown ; tarsal joints with rather well-defined light 

 ochreous annulations at the tip. 



Alar expanse : 20-24 mm. 



Habitat: Boston, Mass. Miss Cora H. Clarke, coll. 



Food- pi ant : Solidago sempervireiis Linn. 



U. S. Nat. Mas., type No. 13441. 



This species makes very similar galls on the stalks of the salt marsh 

 Golden-rod as G. gallcesolidaginis makes on the upland dry species. 



The adults are also very similar, and the present species has for 

 several years been placed tentatively under Riley's name in the- National 

 Museum, partly because it was represented only by single or unbred 

 specimens, and partly because Riley's species was supposed to be very 

 variable. As a matter of fact, however, the \.xw^ gallcesolidaginis is rather 

 constant in its colour and ornamentation, as indicated by a large series, 

 bred during, several years by the writer in the neighbourhood of Washing- 

 ton and of St. Louis, Mo., the original locality of Riley's types in the 

 National Museum. 



These specimens are all of the characteristic soft chocolate-colour, 

 with the ornamentation })roduced solely by white dusting on the basal, 

 dorsal and apical parts ; they all have broader wings than salinaris ; in 

 gallcEsolidagifiis the costa is more strongly arched, and the cilia gives a 



January, 1911 



