等翅目蛮白蚁属钩白蚁属的地理分布及云南新种记述

GEOGRAPHIC DISTRIBUTION OF GENERA Microtermes,ancistrotermes (ISOPTERA) AND NOTES ON NEW SPECIES FROM YUNNAN,CHINA

文章报道了等翅目蛮白蚁属Microtermes Wasmgnn和钩白蚁属Ancistrotermes Silvestri的地理分布和云南新种。作者认为,该二属类群随着与非洲分离的印度板块在始新世中期与西藏连接后,逐渐形成现今包括我国云南等地域的地理分布。文中描述了蛮白蚁属2新种——曼庄蛮白蚁Microtermes mangzhuangensis,勐捧蛮白蚁M.mengpengensis;并首次报道了分布在我国云南的钩白蚁属及2新种——河口钩白蚁Ancistrotermes hekouensis,孟连钩白蚁A.menglianensis。

The species of Microtermes Wasmann and Ancistrotermes Silvcstri distribute in Ethiopian and Indomalayan regions. Considerating the zoogeographical origins, the authors deduce, the ancestral species of the above two genera distributed in the Gondwanaland, with the earth drift, some species were brought to the Ethiopian and Indomalayan regions, through the speciation, forming the contemporary distribution patterns. 1.Microtermes mangzhuangensis. Huang et Zhu sp. nov. (Fig. H . 1-8) The soldier of Microtermes mangzhuangensis sp. nov. comes close to that of M. obesi Holmgren, but differs it as follows. Head-capsule wider; Post-mentum longer; Anterior pronotum broadly rounded. Collected by Zhu Shimo, from Mangzhuang (21.30'N., 101.35'E.), Mengla County, Yunnan Province, altitude 700 meter, April 16, 1982. Specimen No. 82 IV 160372. 2.Microtermes mengpengensis Zhu et Huang sp. nov. (Fig. III. 1 - 8 ) The soldier of Microtermes mengpengensis sp. nov. is closely allied to that of M. unicolor Snyder, but it can be distinguished by the following points. Head-capsule longer; Postmentum longer; Pronotum index: 0.617 (vs. 0.596). Collected by Zhu Shimo, from Mengpeng (21.27'N., 101.18'E. ) , Mengla County, Yunnan Province, altitude 580 meter, April 17, 1982. Specimen No. 82IV70249. 3.Ancistrotermes hekouensis Zhu et Wang sp. nov. (Fig. IV. 1-16) The large and small soldiers of Ancistrotermes hekouensis sp. nov. is close to those of A. pakistanicus (Ahmad) , but differ them dy the larger bodies respectively. Collected by Zhu Shimo, from Yao Autonomous County of Hekou (22.31/N., 103.58'E.), Yunnan Province, altilade 160 meter June 5 , 1982. Specimen No 82 VI 50276. 4.Ancistrotermes menglianensis Zhu et Huang sp. nov. (Fig.V: 1-12) The large and small soldiers of Ancistrotermes menglianensis sp. nov. comes close to those of A. pakistanicus (Ahmad), but can be easily distinguished by the following characters. Each mandible with one point near the middle; Left mandible with one or two minute denticles at base. Collected by Zhu Shimo, from Dai-Lahu-Va Autonomous County of Menglian (22.20/N. , 99.35'E. ) , Yunnan Province, altitude 1020 meter, July 26, 1982. Specimen No. 82VII26016.