云南竹类半翅目昆虫记述

RECORDS OF HETEROPTEROUS INSECTS ON BAMBOOS FROM YUNNAN

与竹类有关的半翅目昆虫在国内专文记载不多,除萧采瑜(1963)《我国竹缘蝽族种类简记》及徐天森、赵锦年(1975),徐天森(1979)在《竹子害虫名录初报》与《增补》等文中记载若干种外,只有一些零星记载。1979年我们在云南省进行野外调查时,在竹上观察并收集到一批蝽类昆虫,共计5科17种,具中包括2个新种和一个中国新记录种,分别记述于下。除新种外,还对几个种的第五龄若虫进行了描述。蝽类昆虫在竹类的害虫区系中占有相当的比重,云南环境复杂,虫种繁多,竹类半翅目种类决不止此,进一步工作将会有许多新的发现。

17 species of bugs belonging to 5 families arc collected on bamboo from Yunnan, two of which are new to science. Cressona divaricata Zheng et Zou, sp. nov. (fig. 2, 5, 6, 9 , 10, 12, 15, 16) Closely allied to C. valida Dallas, distinguished by. Body narrower;’horns’ of pronotum longer and distinctly divergent, pronotal disc with irregular black spots aside the medial black longitudinal parallel stripes, the latter stripes more irregular in shape than valida, all the black spots and speckles with metallic-green sheen;bucculae gradually tapered posteriorly (truncate in valida);scent gland auricle short, 3 times as long as wide ( 5 times in valida);male pygofer, clasper and aedeagus distinctly different. Holotype (?), allotype (?) , Yunnan (Simao), 1979. X. 15. (deposited in Nan-kai University);paratype 1 (?), Yunnan. Collected from bamboo. Macropes bambusiphilus Zheng et Zou, sp. nov. (fig. 21) Black, antennae with base of 3rd, 4th seg. and apex of 2nd seg. ferruginous, posterior lobe of pronotum black, only with extreme basal margin ferruginous, apical 2/3 of clavus and inner half of corium ochraceus, opaque, with the other portions light brown, shining, membrane light smoky, shining, with extreme basis white and opaque. Pronotum distinctly longer than wide, lateral margins parallel in the posterior 2/3. Scutellum shining only along the medial line. Rostrum attaining to posterior margin of pronotum. Head length 0.52, width 0.70. Pronotum lentth 1.22, width 1.33. Scutellum length 0.42, width 0.37. Length claval commissure 0.39. Apex clavus to apex corium 1.02, apex corium to apex membrane 0.94. Width abdomen 1.44. Ann-tennal segment length 0.16:0.39:0.39:0.68. Total length 5.25-6.13 (all measurements in millimetres). Holotype (?), Yunnan (Mengla), 1979.Ⅸ.20.;allotype (?), Yunnan (Mengla), 1979. Ⅸ. 25.;paratypes 1 (?) 1 (?), Yunnan (all deposited in Nankai University). Allied to M. privus Distant, but with the membrane of hemelytra light in color,body larger, pronotum distinctly shorter. On bamboo, living under the leaf sheath of small branch.