. Bulletin of the Museum of Comparative Zoology at Harvard College. Zoology. 156 BULLETIN : MUSEUM OF COMPARATIVE ZOOLOGY Nervi mctathoracici secundus, tertius, et quartus have a com- mon base, probably corresponding to "nerve h" of Malouf (1933). The slender nervus metathoracicus quartus separates from the other two before the latter diverge. Nervus metathor- acicus secundus () goes posterolateral^ and dorsally to innervate the promotor muscle of the leg, M. noto-trochantinalis (63; Fig. 14). Before turning dorsally, it gives rise to two fine branches which extend ventrally, o
. Bulletin of the Museum of Comparative Zoology at Harvard College. Zoology. 156 BULLETIN : MUSEUM OF COMPARATIVE ZOOLOGY Nervi mctathoracici secundus, tertius, et quartus have a com- mon base, probably corresponding to "nerve h" of Malouf (1933). The slender nervus metathoracicus quartus separates from the other two before the latter diverge. Nervus metathor- acicus secundus () goes posterolateral^ and dorsally to innervate the promotor muscle of the leg, M. noto-trochantinalis (63; Fig. 14). Before turning dorsally, it gives rise to two fine branches which extend ventrally, one supplying M. furca- trochantinalis (65) and the other M. episterno-coxalls (66; Fig. 13). These two muscles also promote the hindleg. A long and PHin nthi. -NLABI Fig. 16. Posterior view of the left half of the metathorax, showing the innervation of the posterior metathoracic muscles. The terga of the first three abdominal segments have been removed. The abdominal muscles and part of Muscles 60 and are omitted. very fine branch from the nerve to M. episterno-coxalis runs laterally along the dorsal surface of M. pleura-trochanteralis (71), parallel to the lateral branch of nervus metathoracicus primus. In the area just posterior to the mesothoracic M. noto- coxalis (41) it appears to divide; one ramus goes laterally and branches extensively in the region where the mesothoracic phragma (PHII) joins the pleuron, while the other ramus extends anteriorly, sending many fine branches to the pleuron at the boundary between the mesothorax and metathorax (Figs. 13, 14). These two rami are very slender and difficult to Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Harvard University. Museum of Comparative Zoology. Cambridge, Mass. : The Museum
Size: 1899px × 1316px
Photo credit: © Book Worm / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookauthorharvarduniversity, bookcentury1900, booksubjectzoology
