Distribution of tropical bedbug &lt;i&gt;Cimex hemipterus&lt;/i&gt; in Okinawa Prefecture, Japan

We conducted a nationwide survey on bedbugs between 2019 and 2021, and total of 100 samples from 20 prefectures was collected in the investigations. Cimex hemipterus was rst recorded in residential housing in the Chiba Prefecture and in hotels in the Fukuoka Prefecture. e number of bed bugs found in hotels has decreased, and we consider it is due to the decrease of foreign visitors to Japan because of COVID-19. On the other hand, the number of bed bugs found in residence has increased possibly due to the teleworkers increase. ey stay home long and may have more opportunity to identify bed bugs at home. e increase in housing infestations, which are di cult to control, could lead to the spread of bed bugs in Japan.

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Elucidation of the pathology and current situations of cutaneous disorders caused by noxious arthropods

Natsuaki

2023

Med. Entomol. Zool.

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e author's long research career on noxious arthropods has been focused on clarifying the onset mechanism of dermatitis caused by arthropods and investigating the current situation of arthropod-related cutaneous disorders. is report presents four ndings from the author's research. First, dermatitis caused by Arna pseudoconspersa larvae is the result of an immediate or delayed allergic reaction to toxic substances in the venomous spicules. Second, when feeding on a host's blood, bed bugs use their mouthpart to pierce the host's skin in several locations, so patients with bed bug bites present with a characteristic, irregularly patterned rash. ird, a study on tick bites in Hyogo Prefecture showed that about 80% of bites were due to Amblyomma testudinarium. e study also found that tick-associated rash illness manifesting in erythema with diameters of at least 50 mm is seen in about 14% of patients with tick bites, and this illness is considered to be caused by an allergic reaction to salivary gland substances of the tick. Fourth, a study by the author revealed that the prevalence of Japanese spotted fever has been increasing in the Rokko Mountain area in recent years and that some ticks from this mountain range carry Rickettsia japonica infection.

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Distribution of tropical bedbug <i>Cimex hemipterus</i> in Okinawa Prefecture, Japan

Abstract: We collected Cimex hemipterus and C. lectularius (Hemiptera: Cimicidae) from Naha City, Okinawa Prefecture, Japan. Cimex hemipterus had been previously collected from Japan, and the present report represents the record from Japan, after an interval of about 80 years.

Cited by 3 publications

References 2 publications

The Bed Bug Resurgence in Asia

The Bed Bug Resurgence in Asia

2019～2021年の国内におけるネッタイトコジラミおよびトコジラミの生息調査

Elucidation of the pathology and current situations of cutaneous disorders caused by noxious arthropods

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