甲虫体内定居猪巨吻棘头虫微生态学初步研究

THE MICROECOLOGICAL STUDY ON SOME BEETLES COLONIZED BY JUVENILE OF MACRUCANTHORHYNCHUS HIRUDINACHUS IN DALIAN AREA

本文报告了１９８４年大连地区甲虫体内定居猪巨吻棘头虫的幼虫（棘头体）情况。大牙锯天牛的成虫定植率为１０．２％，低于１９７４年的３８；８％。本次调查发现铜绿丽金龟、蒙古丽金龟和灰粉鳃金龟，共４种金龟体内都有棘头体定居，其定植率依次是２３．８％，２３．８％，１６．１％和３３．３％。前３种金龟体内定居着棘头体为大连地区首次报告。调查证明上述天牛和金龟６种甲虫也是本地区流行的猪巨吻棘头虫病的重要媒介，如采取重点消灭这几种甲虫的预防措施对控制流行可为更为得力的措施。

The paper deals with investigation of some beetles colonized by juvenile ofMacracanthorhynchus hirudinachus in 1984 in Dalian area.In 1974,the adults ofDorysthenes paradoxus has been collected in Zhuanhe( 1979 Cai Zhixuan),and theincidence colonized with the acanthella was 38.8%among 165 adults cerambycids,wnile in 1984 the incidence was 10.2%among 381 the cerambycids,lower than that in1974.In 1984,4 other species of the beetles,including the Anomala corpulenta,Anomala luculenta smaragdina Ohause,Anomala mongolica Faldermann andHoplosternus incanus,were collected in Dalian area.We dissected them and found theacanthella in each of their bodies,This is the first report in Dalian area on the above-mentioned species of the tumblebugs except for the Hoplosternus incanus. Thecolonyzation rate of acanthella in the bumblebugs are 23.8%(22.3%among 103females and 25.2%among 111 males),16.1%(14.6%among 41 females and 19.1%among 21 males), 23.8%(25.9%among 27 females and 20.0%among 15 males) and33.3%(29.4%among 17 femates and 38.5%among 13 males)respectively。 This isindicative fo the nicessity of further prophylactic examinations for early elimination ofspecies of the beetles.