@article{oai:soar-ir.repo.nii.ac.jp:00011179, author = {高松, 好文}, journal = {信州大学農学部学術報告}, month = {Mar}, note = {The form and histological structure of the central nervous system of Hymenoptera were studied by many investigators, especially on the hony-bee most evidently, but as the studies on the Vespidae are not so advance the writer carried on this study with the purpose to clear up the structure of the central nervous system of the Vespula lewisii (COMERON). (Hym. Vespidae. And the obtained results are as follows: 1). The larva; the central nervous system is organized by the brain and suboesophageal ganglion in the head, and 11 ganglions in the thorax and abdomen. The brain takes the position on the upper part, the suboesophageal ganglion on the lower part to the oesphagus in the head. These two are connected with the eireumoesophageal commussures. The 11 gagnlions in the thorax and abdomen organize ventral nerve track and project a pair of peripheral nerves to the each segment. 2). The adult; there are the brain and suboesphageal ganglion in the head, and these two are made up by fusion with 3 embryonal ganglions respectively. The protocerebrum controls the ocelli or simple eyes above and the compound eyes on the sides. The deutocerebrum consists of the two prominent antennal lobes (some times called the olfactory lobes) which give off the large sensory antenal nerves and two smaller nerves that go to the muscles that move the antennae. The tritocerebram gives off a pair of labral narves that go to the labrum, two smaller nerves that go to the frontal ganglion, and moreover a pair of smaller nerves (nervous corporis allati) that go to the pharyngeal ganglion, the corpus allatum, and the salivary gland. The subcesophageal ganglion is somewhat angular and gives off 3 pairs nerves that go to the mandible (mandibular nerve), the maxilla (maxillary nerve) and the labium (labial nerve). 3). In the thorax of the adult there is one great ganglion made up by fusion of 4 larval ganglions, and this ganglion gives off 5 pairs large nerves that go to 2 pairs of wings and 3 pairs of legs. In the abdomen there are 6 ganglions, and these ganglions, except the last ganglion, give off one pair nerves that go to the each segment. The last ganglion consist of 2 last larval ganglions, and gives off 7 nerves that go to the reproductive organ and poisonous glands. 4). The general internal strueture of the brain, by the section, shows that it is composed of an outer cellular layer and an internal fibrillar tissue. 5). The caps of the mushroom bodies and central bodies in the onter cellular layer of the brain are composed of large characeteristic cells, and the other parts are composed of, in some degree, smaller cells than the former. And in the other ganglions the large characteristic cells distribute on the outer parts, the smaller cells situate on the inner parts in the ganglion. 6). The large amount of this characteristic cells, are contained much in the suboesphageal ganglion, the last ganglion in the abdomen and the large adult ganglion in the thorax. In the others there are few. 7). The part of the cap of the mushroom body is composed of large characteristic cells and the part of its stock is composed of the fibrillar tissue, and this part receives the nerve connections from the compound eye, the antena and the suboesophageal ganglion. 8). In the internal fibrillar tissue there are many minute nerve cells, which are most abundant in the part of the brain, but few in the ganglions which do not develop. 9). Putting together above mentioned facts, the writer thinks that the mushroom bodies are the nerve center of the intelligence, and the nerve center of each ganglion seems to be in the layer of the outer large cells. So that the each ganglion has progressive autonomic nature in accompany with its development., Article, 信州大学農学部学術報告 1: 57-67(1952)}, pages = {57--67}, title = {黒スズメバチに関する研究:Ⅴ. 中樞神經系の形態及びその組織學的構造について}, volume = {1}, year = {1952} }