December, 1913 Bulletin of the Brooklyn Entomological Society 105 



larva remains within it either to the following spring or the 

 next year. Described from twelve females, three of which 

 have the anterior parallel and lateral grooves black and nar- 

 rowly edged on each side by the same color. 



Andricus perditoi- Bassett. fig. 11. 



Andricus perditor Bassett, Trans. Am. Ent. Soc. vol. XXVI, 1900, p. 313. 



The gall of this species is practically nothing more than a 

 deformed acorn of the scrub oak. The eggs are deposited 

 early in spring in the very young acorns of the first year's 

 growth. They are reddish and mature in September and 

 October. When fully developed they turn brown like the color 

 of the acorns. 



Habitat: Conn., N. J., 111. 



Andricus eldoradensis sp. nov. fig. 12. 



Male. — Body wholly pale yellowish brown, legs somewhat 

 paler, eyes and ocelli black. Head microscopically granulated 

 and with minute hairs. Antennae 15-jointed, long and slender. 

 Thorax slightly shining, minutely punctate. Parapsidal 

 grooves very deep and prominent, and almost touching the 

 medium groove at the scutellum. Anterior parallel lines and 

 lateral grooves wanting. Scutellum finely rugose with two 

 large basal fovese, scarcely separated by a ridge. Abdomen 

 smooth and shining. Wings hyaline, veins yellowish brown; 

 radial area closed ; cubitus extending to first cross-vein, areolet 

 rather large. Length 2.50 mm. 



Gall. — Inside the acorns of Q. agrifolia. Rounded bodies or 

 larval cells, sometimes filling the whole interior of the acorn. 

 In shape and structure they are like those of Callirhytis 

 fruiticola. 



Habitat: Alameda and Los Angeles Co., Cal. (A. Koebele). Type U. 

 S. Nat. Mus., paratype coll. W. Beutenmuller. 



The flies of this species are from Los Angeles Co, and are 

 labeled "from acorns of Q. agrifolia", while the galls are from 

 Alameda Co. It is barely possible that the flies have nothing 

 to do with the galls, but both bear the same number, 109. 



IDENTIFICATIONS.— The Secretary sets apart the hour from 12 to 1, 

 Mondays, Tuesdays, Thursdays and Fridays, at his office, 15 Broad St., 

 Manhattan, room 9, Ninth floor.to receive visitors interested in Entomol- 

 ogy, and aid them if possible, to identify, especially Coleoptera and Lep- 

 idoptera. Beginners will be made especially welcome, 



