Order Arachnida, Family Wolf Spider. Females are 8-10mm long, males 6-8mm long. The cephalothorax is blackish brown with a wide gray-brown band in the middle, and the abdomen and walking legs are a complex mix of brown, yellowish brown, and black. They wander around on the ground to catch insects. Adults can be found all year round, but they lay eggs mainly in spring and autumn. The egg sacs are flat and spherical, and are carried around on a silk wart. When the baby spiders emerge from the egg sacs, they spend several days riding on the parent's abdomen. They are found in plains all over Japan, and are most commonly seen from urban areas to suburban areas. They are often seen around April, so they are called "Uzuki" (the month of April). (→ Wolf spider ) Source: Encyclopaedia Britannica Concise Encyclopedia About Encyclopaedia Britannica Concise Encyclopedia Information |
クモ綱クモ目コモリグモ科。雌の体長8~10mm,雄は6~8mm。頭胸部は黒褐色で中央に幅広い灰褐色の帯があり,腹部や歩脚は褐色,黄褐色,黒色が複雑に入り交った色彩をしている。地上を徘徊して昆虫を捕える。成体は一年中みられるが,おおむね春と秋に産卵する。卵嚢は扁球形で,糸いぼにつけて持歩き,子グモは卵嚢から出ると親の腹部に乗って数日過す。日本全国の平地に分布し,市街地から郊外にかけて最も普通にみられる。4月頃よく目につくので「卯月」の名がある。 (→コモリグモ )
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