Allergic reaction to Hyperlasion Schmitz (Diptera: Sciaridae)

• Published in: Allergology International 2023-10, Vol.72 (4), p.604-606
• Main Authors: Matsui, Teruaki, Sato, Nayu, Kawabe, Tomofumi, Nakamura, Masashi, Takada, So, Matsunaga, Kayoko, Ito, Komei
• Format: Article
• Language: English
• ISSN: 1323-8930; 1440-1592
• DOI: 10.1016/j.alit.2023.03.004

Dear Editor, Sciarid fly (Shizuoka-kurobane-kinoko-bae in Japanese) infestations have been reported in Gifu, Shizuoka, and Aichi prefectures in Japan since 2011. Sueyoshi et al. recently discovered the sciarid fly as a new species in the genus Hyperlasion Schmitz and named it Hyperlasion breviantenna (HB) based on its morphological features and the results of genetic analyses. HB is recognized as a pest and its infestations occur during the rainy season (June to July). With a body length as small as 1.4-1.8 mm, more than 100 HB can enter a building in half an hour, even through the mesh of a screen door. Most HBs are female and are assumed to inhabit forests and forest edges ; however, the details of their habits are currently unknown. Therefore, it is difficult to develop control measures against this insect. Some patients in Tajimi City, Gifu prefecture reported to our institution with complaints of rhinitis and conjunctivitis with itching immediately after being touched or surrounded by HB.