Gián là con gì?

Gián là con gì?
Họ gián phổ biến nhất hiện nay là họ gián có tên khoa học là Blattidae. Gián rất dễ nhận diện do cơ thể có hình bầu dục, dẹp, đầu được phần ngực che khuất, râu đầu dài.

Loài phổ biến: gián nhà Blatta orientalis

 Cánh gián có thể phát triển, hoặc thoái hóa rất nhỏ hoặc không có cánh, ở nhiều loài con cái có cánh ngắn hơn con đực. 


Một số loài gián (Blattidae) phổ biến tại Việt nam
Gián đẻ trứng thành từng bọc (Oothecae), được đẻ ra ngoài ngay khi bọc trứng được thành lập hoặc được con cái mang trên mình (dính ở phía ngoài của phần cuối bụng) trên mình cho tới khi trứng nở. Mùi hôi khó chịu. Đa số các loài gián có tính ăn tạp: Rau, cơm, cám, trái cây…

Trọng Hoàng
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