Forest entomology . kins are generally smaller than those onthe leaves, and slightly more reddishin colour. / The fly (fig. 134) has a black shin- Fig. baccarum. ing body, about 2J mm. in length, antennas brownish, 14-jointed in the male. The legs are yellow, withblack coxae at the base. Tarsi 5-jointed ; wings longish, broad at theapex, and about 8 mm. in expanse. In a comparatively forward 144 FOREST ENTOMOLOGY. season they may be found in the Midlands about the end of May,1but more commonly in the middle of June. At the same season ofthe year as we find the spangle gall, t
Forest entomology . kins are generally smaller than those onthe leaves, and slightly more reddishin colour. / The fly (fig. 134) has a black shin- Fig. baccarum. ing body, about 2J mm. in length, antennas brownish, 14-jointed in the male. The legs are yellow, withblack coxae at the base. Tarsi 5-jointed ; wings longish, broad at theapex, and about 8 mm. in expanse. In a comparatively forward 144 FOREST ENTOMOLOGY. season they may be found in the Midlands about the end of May,1but more commonly in the middle of June. At the same season ofthe year as we find the spangle gall, two or three other species ofISTeuroterus may be found. 2. Neuroterus fumipennis (Htg.) Gall on the under side of oak leaves, circular in outline, smaller insize and brighter in colour than the spangle gall (fig. 135); but theprincipal difference is that the spangle gall is raised in the centre and.
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