Mr. Blackwall's Descriptions of new Species 0/ Spiders. 661 



44. Linyphia rubea. Cephalo-thorace antic^ saturate, posticfe flavescenti- 

 brunneo ; mandibulis maxillis labio sternoqiie saturate, palpis pedibus- 

 que flavescenti-bninneis, bis virescentibus ; abdomine fascia mediana 

 lat^ dentate brunnea^ laterali utrinque alba, strigaque brevi brunnea 

 ab ano utrinque surs^m ducta; lateribus brunneis lineis duabus flaves- 

 centibus, antica horizontali postica fere verticali. 



Length of the female ^ths of an inch ; length of cephalo-thorax -^ ; breadth 

 -^ ; breadth of abdomen -^ ; length of an anterior leg \ ; length of a leg 

 of the third pair \. 



Cephalo-thorax oval, convex above, glossy, with a large indentation in the 

 medial line of the posterior region ; its colour is yellowish brown, with 

 the exception of the anterior part, which is dark brown. Mandibles 

 powerful, conical, armed with teeth on the inner surface, and slightly 

 inclined towards the sternum, which is broad and heart-shaped. Max- 

 illae robust, straight, and somewhat quadrate. Lip semicircular and 

 prominent at the extremity. These parts are dark brown, the mandibles 

 and lip being the darkest. Eyes placed on black spots, the anterior pair 

 of the trapezoid being the smallest of the eight. Legs slender, and of a 

 yellowish brown colour, tinged with green ; first pair the longest, then the 

 second, third pair the shortest. Palpi yellowish brown, with a slightly 

 curved claw at the extremity. Abdomen thinly clad with hairs, glossy, 

 very convex above, projecting over the base of the cephalo-thorax ; a 

 broad, dentated, brown band, which is darkest at its posterior extremity, 

 extends along the middle of the upper part, nearly to the spinners ; on 

 each side of the brown band is an irregular white one ; these white bands 

 unite immediately above the spinners, and a short, brown streak is di- 

 rected upwards from each side of the anus ; the sides are brown, obscurely 

 mottled with yellowish spots, and are marked with two yellowish lines on 

 the lower part, the anterior one being horizontal, and the posterior one 

 nearly vertical ; the under part is brown, a large space in the middle 

 having a tinge of yellow. The sexual organs, which are very dark brown, 

 approaching to black, have a minute prominence on their inferior mar- 

 gin. Plates of the spiracles brown. 



4 r2 



