This paper reports the records of mosquitoes in the Japanese archipelago collected by Kiyoshi Kamimura between 1961 and 2000. The Japanese mosquito fauna is formed the northern species and the oriental species. The most abundant species in Japan are considered to be the Anopheles sinensis species group, Culex tritaeniorhynchus and Culex orientalis. These are species that reproduce in large bodies of water such as rice paddy swamps. The An. sinensis species group, Culex pipiens complex, Culex tritaeniorhynchus and Aedes albopictus, which transmit malaria parasites, filaria parasites, Japanese encephalitis virus, West Nile virus, dengue virus, yellow fever virus and pathogens of other diseases, are found to be widely distributed throughout Japan, and it is considered necessary to strengthen the quarantine system in the future.

The density and distribution of house dust mites on a bath towel used as the bedding of an indoor-reared dog and house dust mite species attached to the hairs of indoor-reared dogs were examined to study the importance of indoor-reared dogs for the reproduction and dispersion of house dust mites. The bath towel was divided into 356 sections and the degree of dirtiness of each section was defined by the thickness and coverage of vomit. The effects of the coverage of vomit on mite density per section was significant (ANOVA, p<0.05) and a significant linear relationship was observed between the coverage of vomit and mite density. Based on the relationship, house dust mite density was estimated for each section and the total number of house dust mites on the bath towel was calculated as 4,728 per 0.94 m². A total of 269 house dust mites sampled from the bath towel were identified and Dermatophagoides farinae was dominant (95.5%) whereas D. pteronyssinus comprised only 1.9%. The hairs of 12 indoor-reared dogs were examined and 12 mites were found from 8 dogs. Although the number of mites was small, indoor-reared dogs possibly disperse house dust mites on rooms where they visit and stay.

鳥マラリアは蚊と鳥の間で伝播し，動物園や水族館で飼育されている鳥類に対して脅威となることがある．日本では，鳥マラリアに関する研究が行われているのは限られた地域であり，国内の鳥マラリアの伝播状況を把握するにはまだ十分ではない．本研究では，長崎大学坂本キャンパスおよび長崎ペンギン水族館において，トラップおよびスイーピングによって蚊を採集し，解剖およびnested PCR法により原虫を検出した．採集した1392匹の雌のうち，208匹を解剖し，残りを488個のプールに分けてPCR法で分析した．PCRで陽性となったのは5検体で，いずれも坂本キャンパスに設置されたグラビッドトラップで採集されたトラフカクイカLutzia voraxであった．得られた原虫DNAはすべてCXPIP12株の配列と一致し，この株は日本各地から報告されている．さらに，各種トラップによって捕獲された蚊の種類は異なり，アカイエカCulex pipiens pallens，ネッタイイエカCx. qunquefasciatus，トラフカクイカはドライアイストラップに比べ，グラビッドトラップによってより効果的に捕獲された．水族館は現在のところ鳥マラリアの危険性は高くないが，ペンギンを吸血した蚊が採集されたこと，市内で鳥マラリアが検出されたことから，今後も注意する必要がある.

The invasive ant Technomyrmex brunneus native to Southeast and East Asia, has invaded several areas in Japan. On Hachijo-jima Island in Tokyo and in the Satsuma Peninsula, Kagoshima Pref., southern Kyushu, populations of T. brunneus show high-density in residential areas, causing serious problems as a household pest. We examined polygyny and unicoloniality of T. brunneus which relate to this ant’s invasiveness on Hachijo-jima Island and Satsuma Peninsula, Kagoshima. Thirty-nine colony fragments were collected on Hachijo-jima Island from 2020 to 2022, and the compositions of these colonies were examined. Numerous intercastes (wingless females with a spermatheca) were present throughout the year in the colony fragments. The ratios of individuals were 13%, 12%, 8%, 3% and 7% in March, April, August, October, and November, respectively. Therefore, the reproductive ability of T. brunneus is high in spring and low in autumn. Four-on-four aggression tests were conducted among five T. brunneus colony fragments, each of which was gathered from localities with intervals ranging from 10 km to 50 km in August 2022. As a result of the aggression tests, weak hostility was recognized among some colony fragments of the Satsuma Peninsula. It is suggested that a huge supercolonization of T. brunneus over 50 km is ongoing in this area.

九州（大分県）からゴマフアブ属の新種であるブンゴゴマフアブHaematopota yonetsuiを記載した．本種はnigriantenna種群に属し，触角の基節が黒色で鞭節基部が黄褐色という点で同じ種群のHaematopota desertorum SziládyとHaematopota pluvialis Linnaeusに類似する．しかし，触角基節の背側先端が肥大し，小楯板が灰白色であり，翅の第一中脈室と第2中脈室，第1肘脈室の後縁にのみ白斑があることなどにより区別できる．

BG-lure is a mosquito attractant developed and manufactured by Biogents. This attractant is not only effective in Bioagents’ traps but also mosquito traps of other brands. Biogents has recently developed a new modular mosquito trap called BG-Pro. In this study, we investigated the effectiveness of BG-lure as an attractant for a CDC miniature light trap and BG-Pro. In six overnight attempts, the CDC trap with BG-lure captured an average±S.D. of 0.3±0.8 (individuals/replicates) of Aedes albopictus, the dominant species in this survey, whereas BG-Pro with BG-lure captured an average±S.D. of 2.3±3.3 (individuals/replicates). These results suggest that hardly any Ae. albopictus can be captured by the CDC miniature light trap with BG-lure.

本研究では，ウミネコとオオミズナギドリの2種の海鳥を対象に，集団繁殖地のある島嶼地域（青森県蕪島（陸続き），新潟県粟島，東京都利島）においてマダニ類の採集を実施した．その結果，利島のオオミズナギドリコロニーでのみ，幼鳥の頭部に多数のフィリップマダニの寄生を確認した．また，巣材からはサワイカズキダニが採集された．利島でのマダニ類の分布確認は今回が初めてである．

Several juveniles of millipedes, considered to be the alien millipede introduced from Taiwan, Chamberlinius hualienensis, were collected on July 9, 2023 from Aoga-shima Island, Izu Islands. The juvenile was incubated, and the molted adult male was identified as C. hualienensis by examining morphological diagnostic characters of the genus Chamberlinius. This is the first record of the species from Aoga-shima Island.