On the subspecies of the Chinese sulphur-bellied rat——Rattus niviventer Hodgson Wang Sung and Zheng Chang-lin Chinese mugilid fishes and morphology of their cephalic lateral-line canals Song Jia-kun On the fauna of freshwater mollusks of Xinjiang Liu Yue-ying,Wang Yao-xian and Zhang Wen-zhen Notes on the genus Odontotermes(Isoptera)from China,with description of a new species Tsai Pang-hwa and Huang Fu-sheng Studies on locusts and grasshoppers from Xinjiang:New genus and new species of the tribe Dociostaurini Mistsh.(Orthoptera:Acrididae) Liu Ju-peng Studies on Chinese Aphis craccivora complex with descriptions of two new species and two new subspecies Zhang Guang-xue and Zhong Tie-sen Linaphis lini Zhang,gen.et sp.nov.——A new pest of Linum Zhang Guang-xue and Zhong Tie-sen The caudal forks of the Cassididae and their taxonomic significance Yu Pei-yu On a new genus and two new species of Eumolpidae(Coleoptera) Tan Juan-jie On a new species of the genus Tanyproctus Faldermann(Coleoptera:Melolonthidae) Chang You-wei and Luo Yi-zhen Studies on the Anopheles(A.)sinensis group of mosquitoes in China,including four new sibling species Ma Su-fang On the Chinese Eurythia with descriptions of seven new species(Diptera:Tachinidae) Chao Chien-ming and Shi Yong-shan Two new species of Tabanidae(Diptera)from Nei Mongol,China Wang Zun-ming Two new subspecies of the Chinese Epicopeiidae Chu H.F.and Wang L.Y. A study of Chinese Pyralid moths of the genus Eschata Walker(Lepidoptera:Pyralidae) Wang Ping-yuan and Sung Shih-mei Vertical distribution of Lymantriid moths in Mount Emei,including description of a new species Chao Chung-ling Notes on the genus Letacoenites together with a new species(Ichneumonidae:Acaenitinae) Wang Shu-fang A new species of Streblocera Westwood(Hymenoptera:Braconidae:Euphorinae) Wang Jin-yan On the egg-parasite(Telenomus)of the pine caterpillar(Hymenoptera:Scelionidae) Chen Tai-lu and Wu Yen-ju Schizotetranychus from China with a new species(Acarina:Tetranychidae) Wang Hui-fu Studies on the upstream migration and geographical distribution of the common eel in China Zhang You-wei,Xiao Zhen-yi and Zhang Shi-yi Some aspects on the biology of Aneristus ceroplastae,a parasite of Chloropulvinaria polygonata on citrus Huang Chun-mei On the biology of the tick Dermacentor sinicus Schulze in China Teng Kuo-fan Synthetic effects of the bio-environmental system on insect population fluctuations Ma Shih-chun and Li Dian-mo A catastrophe model of population dynamics Li Dian-mo,Ting Yen-chin and Lang Chung-hsiung Studies on the sampling theory of insect populations Ting Yen-chin On the strange male odour causing pregnancy block in mice Han Tsun-chih Cytogenetical studies on fishes.Ⅰ.The karyotype of Rhodeus sinensis Wu Zheng-an and Yan Hui-iy On the posterior silk gland polysomes of Bombyx mori L. Hsia Pang-ying and Quo Fu Preparation of Sendai virus used for cell hybridization Zheng Rui-zhen,Wang Su-min and Zhao Shu-hui Effects of juvenoids on the reproduction of the adult lady beetle,Coccinella septempunctata L. Chou Hsü-chia,Chung Hsiang-chen,Wang Chung-shun,Wei Ding-yi,Hu Chao-Yuan,Quo Fu and Chen Shiu-jeh On the propagation of the nuclear polyhedrosis-virus of the cotton bollworm,Heliothis armigera(Hübner) Tsai Siu-yu,Ding Tsuey and Hwang Guan-huei On the infective route of Bacillus popilliae in the larvae of Popillia quadriguttata Yang Ming-hua and Liu Yu-bin Mosquito repellent activity of series of 2-(N-alkylamino)acetaldehyde dialkyl acetals and their N-acyl derivatives Liu Meng-ying,Sun Yun-qin,Lu Bao-lian,Li Bao-zhen,Cen Ming,Lu Jin-ling,Li Jie and Meng Yu-lan Quantitative structure-activity relationships in organophosphorus insecticides——Acethion analogs Liu Xun and Zhang Zhong-ning Studies on organochlorine insecticides:Excretion and tissue distribution of(H3)2,2,2-trichloro-1-(3,4-dichlorophenyl)-ethanol-acetate(7504)in the mouse Sun Yun-qin,Feng Guo-lei and Meng Yu-lan Residual studies of phoxim in the field and in the warehouse Feng Guo-lei,Shi Guo-han,Jia Bao-qi,Zhou Hou-an and Liu Bao-wen