mh. j. blackwall on some tuscan spiders. 429 



dentated band extends along the middle of the upper part ; there is a 

 dark-brown curved streak contiguous to the outer margin of each 

 branchial operculum, and in the space between the two a small spot 

 of the same hue is situated. 



Th'is spicier, by the disposition of its eyes and by the structure 

 of its oral apparatus, evidently belongs to tbe genus Theridion ; 

 but by the relative length and delicacy of its legs an approxima- 

 tion to the LinyphicB may bo perceived. 



Genus Puolcus, Walck. 



Pholcus phalangioides, Walck. Hist. Nat. des Insect. Apt, tom. i. 

 p. 652 ; Latr. Gen. Crust, et Insect, tom. i. p. 99 ; Ilahn, Arachn. Band 

 ii. p. 34, t. 50. f. 119; Koch, Uebers. des Arachn. Syst. Heft i. p. 20; 

 Blackw. Spiders of Great Britain and Ireland, p. 208, pi. 15. f. 137. 



Pholcus opilionoides, Koch, Arachn. Band iv. p. 95, tab. 135. f. 311. 



Family LINYPHIIDiE. 



Genus Lintphia, Latr. 



LiNYPHiA MONTANA, Walck. Hist. Nat. des Insect. Apt. tom. ii. p. 233, 

 pi. xvi. f. 4; Koch, Uebers. des Arachn. Syst. Heft i. p. 10; Koch, 

 Arachn. Band xii. p. 113, t. 422. f. 1038, 1039; Blackw. Spiders of 

 Great Britain and Ireland, p. 211, pi. xv. f. 138. 



Linyphia triangularis, Latr. Gen. Crust, et Insect, tom. i. p. 100; Sund. 

 Vet. Akad. Handl. 1829, p. 215. 



Linyphia triangularis, Walck. Hist. Nat. des Insect. Apt. tom. ii. 



p. 240 ; Blackw. Spiders of Great Britain and Ireland, p. 212, pi. 15. 



f. 139. 

 Linyphia marginata, Wider, Museum Sencken. Band i. p. 253, t. 17. f. 5. 



Koch, Arachn. Band xii. p. 118, t. 423. f. 1041, 1042. 



Linyphia punctata, n. sp. PI. XVI. fig. 12. 



Length of an immature female ^ in. ; length of the cephalothorax ^V» 

 breadth j'o 5 breadth of the abdomen i\ ; length of an anterior leg 

 i^g ; length of a leg of the third pair -jV- 



The cephalothorax is compressed before, rounded on the sides, convex, 

 glossy, marked with minute punctures, and has an indentation in the 

 median line ; the falces are powerful, conical, vertical, and armed with 

 teeth on inner surface. These parts are of a reddish-brown colour, 

 the lateral margins and cephalic region of the cephalothorax being 

 much the darkest. The maxillaj are straight, and the exterior angle 

 at their extremity is curvilinear ; the lip is semicircular ; and the ster- 

 num is heart-shaped. These parts arc of a dark-brown colour, tinged 

 with red. The eyes are disposed on the anterior part of the ccphalo- 



29* 



