Core Points - The article discusses the emergence of the "hidden wing bug" in Shandong, highlighting its potential danger and providing a safety manual for the public [2][4]. Identification and Characteristics - The hidden wing bug measures 0.6-0.8 cm in length, resembling a large ant, with a black head and abdomen, orange-yellow thorax and legs, and inconspicuous wings [4]. - It prefers light and moisture, often found in rice fields, grasslands, and forests, and is attracted to light at night [4]. Behavior and Effects - The bug does not bite but releases a strong acidic venom (pH 1-2, comparable to concentrated sulfuric acid) when crushed [6]. - The venom causes delayed reactions: redness and burning on the first day, increased swelling and pain on the second day, and possible yellow pus and severe itching on the third day [7][8]. Prevention and Response - To avoid contact, individuals are advised to gently blow or use a card to remove the bug instead of swatting it [9][10]. - In case of contact, immediate washing with plenty of water or soap is recommended to neutralize the venom [11]. - For initial symptoms, treatments include applying calamine lotion for itching and using saline solution for blisters [12]. - If severe symptoms occur, such as pus or intense pain, seeking medical attention is crucial [13]. Preventive Measures - Maintain cleanliness by clearing debris and weeds around homes to reduce habitats for the bug [14]. - Close windows and curtains at night to minimize light attraction [14]. - Wear long sleeves and pants when outdoors to protect skin [14]. - Use insecticides containing "permethrin" or "pyrethroids" in key areas to create a protective barrier [14].