Forest entomology . gs toa slight extent black; the diaphanous wings finely black haired; theknob or club of the ramus-stigmaticus longer than broad, ellipticaland black ; the coxae of the fore-legs yellow; the pulvillus on all thelegs black; the compressed abdomen reddish - brown on the upper 196 FOREST ENTOMOLOGY. side, with a larger or smaller black-brown or black spot at the baseof the first segment, and becoming paler at the edges. This spot issometimes wanting; on the other hand, the end of the body andthe under surface of the abdomen are somewhat light - coloured;the sheath of the ovipo
Forest entomology . gs toa slight extent black; the diaphanous wings finely black haired; theknob or club of the ramus-stigmaticus longer than broad, ellipticaland black ; the coxae of the fore-legs yellow; the pulvillus on all thelegs black; the compressed abdomen reddish - brown on the upper 196 FOREST ENTOMOLOGY. side, with a larger or smaller black-brown or black spot at the baseof the first segment, and becoming paler at the edges. This spot issometimes wanting; on the other hand, the end of the body andthe under surface of the abdomen are somewhat light - coloured;the sheath of the ovipositor is intense black. All the flagellum joints of the thirteen - jointed antennae arelonger than thick, and become gradually a little less towards theapex of the antennae; the first joint is the longest, the others prac-tically agree in length ; the three-jointed club is egg-shaped, and aslong as the two foregoing joints taken together. The central partof the face is obliquely wrinkled, the forehead longitudinally. Fig. 191.—Megastigmus spermotrophus (female). (Drawn by P. J. Brown.) Wrinkled; the vertex of the head, the prothorax, the mesothorax,and the scutellum are transversely wrinkled; the post - scutellum,outlined by a fine deep line, is glossy and smooth except at the baseand along the longitudinal middle line, where it is finely punctured;the metanotum is finely punctured, with a prominent longitudinalkeel in the middle, and in the case of most examples, with a trans-verse ledge at the limit of its front third; the hind margin is glossysmooth, without sculpture. The face, mesonotum, all the coxae, thetibiae and tarsi of the fore-legs and the middle and hind legs, arewhite haired ; the vertex of the head and the forehead, the thorax,especially both sides of the furrows of the parrapsides, the scutellumother than the post-scutellum, the femora of the fore-legs and the HYMENOPTERA—SAW-FLIES, ETC. 197 hind edges of the segments of the abdomen, are beset with longeror
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