埼玉県立自然史博物館研究報告　第６号 (1988)

埼玉県桶川市におけるハタネズミの外部寄生虫相

高　橋　　　守
埼玉県立川越高等学校
斎　藤　　　貴
埼玉県立秩父農工高等学校
町　田　和　彦
埼玉県立自然史博物館
井　上　茂　樹
日高町立高麗小学校

摘　　　　　要
　1975年12月から1976年11月まで，埼玉県桶川市の荒川河川敷の牧草地で，ハタネズミに寄生する外部寄生虫を調査した．
　捕獲された小哺乳類は，ハタネズミ933頭，アカネズミ1頭およびジネズミ1頭の合計935頭であった．
　ハタネズミからは，ダニ類及び昆虫類の8科12属13種2197個体が得られた．採集数が多かったものはトゲダニ科で，全体の80.3％を占め，他にツツガムシ科，ケモチダニ科なども得られた．なかでもトゲダニ科のA. (H.) fahrenholziとL. microtiの2種は．この調査地におけるハタネズミの代表的な外部寄生虫と考えられた．
　A. (H.) fahrenholziの季節的消長は幼虫を除く各発育期が得られ，各発育期とも冬期と春期に多く得られ，L. microtiは，各発育期とも冬期と秋期に多く得られた．シラミ類では著しい季節的消長はみられなかった．


Fig. 4. Monthly fluctuations of mites and murine lice found on Microtus montebelli in Okegawa City from December 1975 to November 1976.

Ectoparasite fauna of Microtus montebelli at Okegawa City in Saitama Prefecture

Mamoru TAKAHASHI
Kawagoe Senior High School, Kawagoe, Saitama Pref., 350 Japan
Takashi SAlTO
Chichibu Agricultural and Technical Senior High School, Chichibu, Saitama Pref., 368 Japan
Kazuhiko MACHIDA
Saitama Museum of Natural History, Nagatoro, Saitama Pref., 369-13 Japan
and
Shigeki INOUE
Koma Elementary School, Hidakamachi, Iruma-gun, 350-12 Japan

Abstract The survey of the ectoparasite fauna of Microtus montebelli was carried out in the pasture on the embankment along the river Arakawa, Okegawa City, Saitama Prefecture from December 1975 to November 1976. The number of mammals were totaled 935, consisting of 933 M. montebelli, one Apodemus speciosus and one Crocidura dsinezumi. The number of mites and insects were totaled 2197, consisting of 8 families, 12 genera, 13 species were obtained from M. montebelli.
　　Among the parasites collected, Laelapidae were the most abundant (80.3%) and Trombiculidae, Myobiidae and so on were obtained, too.
　　Androlaelaps (Haemolaelaps) fahrenholzi and Laelaps microti were considered as the representative parasitic mites of M. montebelli.
　　As regards the seasonal fluctuation of mites, the various stages except larva in the life-cycle of A. (H.) fahrenholzi was taken especially in winter and autumn.
　　As for Anoplura, remarkable changes of seasonal appearence were not recognized.

||トップ・ページへ||研究報告総目次へ||
||HOME||BULLETIN'S CONTENTS||