Forest entomology . Fig. 135.—Galls of Neuroterusfumipennis. Fig. 136.— Galls o/Spathegaster tricolor.(Drawn by P. J. Brown.) the outer edge lying flat on the leaf, whereas the species in questionhas the outer edge of the gall raised and slightly depressed in thecentre. Thus the individual galls somewhat resemble a saucer. According to Adler, larval development does not begin until March(by the time Neuroterus lenticularis has hatched), and the flies appearabout the end of May. The same authority says this fly is easilydistinguished from all the other species of ISTeuroterus. Size 2
Forest entomology . Fig. 135.—Galls of Neuroterusfumipennis. Fig. 136.— Galls o/Spathegaster tricolor.(Drawn by P. J. Brown.) the outer edge lying flat on the leaf, whereas the species in questionhas the outer edge of the gall raised and slightly depressed in thecentre. Thus the individual galls somewhat resemble a saucer. According to Adler, larval development does not begin until March(by the time Neuroterus lenticularis has hatched), and the flies appearabout the end of May. The same authority says this fly is easilydistinguished from all the other species of ISTeuroterus. Size 2 dull black; base of abdomen orange ; legs, including thefemora, orange ; wings, especially at the tips, May 27, 1895, in Cheshire. HYMENOPTERA OAK GALLS. 14i
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Keywords: ., bookcentury1900, bookdecade1900, bookpublisheredinburghwblackwoo
