PULMONARI^. 303 



Other species inhabit Senegal, the Cape of Good Hope and the 

 Isle of France. 



Philodromus, Walck *. 



The Philodromi differ from the two preceding subgenera in their 

 jaws, which are inclined on the ligula, which is also higher than it 

 is wide. The almost equal eyes always form a crescent or semi- 

 circle. The lateral ones are never placed on tubercles or eminences. 

 The chalicerse are elongated and cylindrical : the four or two last 

 legs do not materially differ in length from the others. 



According to Walckenaer these animals run with great swiftness, 

 their legs extended laterally, lie in wait for their prey, throw out 

 solitary threads to entrap it, and conceal themselves in crevices or 

 among leaves. 



In some the body is broad and flat, the abdomen short and 

 widened posteriorly, and the four intermediate legs the longest. 

 Such is the Philodrome tigree ; Thomise tigre, Lat. ; Araneus 

 margaritarius, Clerck, VI, iii ; Schaeff., Icon., Ixxi, 8; Frisch. 

 Ins., Centur., II, xiv; Aranea levipes, L. ? It is about three 

 lines in length. Its two anterior intermediate eyes and the 

 four lateral ones are situated on a slight elevation, and the lat- 

 ter, according to the same naturalist, are somewhat the largest, 

 or at least are more apparent. The thorax is very wide, flat- 

 tened, of a reddish fawn colour, brown laterally and posteriorly, 

 and white anteriorly. The abdomen, which forms a kind of 

 pentagon, is speckled by the red, brown and Avhite hairs which 

 cover it, and edge laterally with brown ; there are four or six 

 impressed points on the middle of the back. The belly is 

 whitish, and the legs are long, slender and reddish, with brown 

 spots. 



This species is very common on trees, wooden partitions, walls, 

 &c., where it remains as if glued, with the feet extended. If 

 touched, it runs with astonishing rapidity, or falls to the ground 

 supported by a thread. The cocoon is of a beautiful white, and 

 contains about a hundred eggs, which are yellow and free. The 

 female places it in hollows of trees or clefts of posts, &c., ex- 

 posed to the north, and carefully watches it. 



The other Philodromi, which, according to the method of M, 

 Walckenaer, form several small groups, have the body, and some- 

 times the chelicertE, propoi'tionably longer. The abdomen is some- 

 times pyriform or ovoid, and sometimes cylindrical. The second 

 pair of legs and then the first or the fourth are the longest. 



Philodromus rombiferus, Walck., Faun. Franc, Aran., VI, 

 8, the male. Its body is three lines and a half in length and 

 reddish; the second legs and then the two last are the longest; 



* In the first editioa of this work, this subgenus formed our first division of the 

 Thomisi. 



