NEW SPECIES OP EUllOPEAN SPIDERS. 541' 



digital joint is oval, rather exceeding in length that of the radial and 

 cubital joints together : the pali)al organs are simjde, and consist of a 

 fhittish corneous lobe; from their fore extremity a black, filiform, 

 tapering spine issues, and, going first in an outward direction, coils 

 completely round their margins, its fine point overlapping its origin. 

 The falces are moderately long, rather exceeding in length the height of 

 the facial sjjace, but not very strong 5 their colour is similar to that 

 of the cephalothorax. 

 The maxillw, labium, and sternum are yellow ; and their form is of the 



usual type. 

 The abdomen is of a broadish oval form, somewhat truncated before and 

 roundish-pointed behind; its upper surface is flattish ; audit projects 

 well over the base of the cephalothorax ; it is of a pale yellowish 

 colour; the upperside is furnished withafewiine hairs, and is closely 

 mottled with irregular, silvery-yellow metallic spots; and its fore half 

 has the five usual small circular depressions or punctures, the sides 

 being of a (lark rusty red-brown marked with longitndinnl, parallel, 

 sinuous lines of minute yellow dots, the underside being whitish- 

 yellow, and the square between the spiracular plates a bright but 

 ])ale orange-yellow : the anal tubercle and superior spinners are of 

 the same colour as the sides ; the inferior spinners yellow. 

 A single example was received several years ago from the ueigli- 

 bourhood of Naples ; and I feel much pleasure iu naming it after 

 Dr. Pietro Pavesi (of the University of Genoa), who lias given a 

 considerable amount of attention to the Araneidea of Italy. 



XVSTICUS DEFECTUS, sp. n. PI. XV. fig. 9. 



Adult male, length rather more than 2 lines. 



This si)ider, though so decidedly distinct from Xysticus cristatus (Bl. et 

 al.), is yet so exceedingly similar in form, colours, and markings that 

 the description of one would do fairly well for that of the other; it is, 

 however, rather a larger spider ; the colours of the cephalothorax are 

 darker and richer; the dark, wedge-formed, longitudinal, central 

 marking behind the eyes terminates obtusely behind, instead of in a 

 ])oint, which is invariably the case in X. cristatus ; the femora and 

 genua of the first two jiairs of legs are of a rich black chestnut-brown, 

 without spots or any pale lines, the remainder, together with the legs 

 of the third and fourth pairs, being of a uniform dull yellow ; the hairs 

 also on the abdomen are shorter and rather stronger ; and the den- 

 tated band along the centre of its upperside is darker-coloured ,ind 

 less distinctl}^ defined, though of a very nearly similar form ; and the 

 abdomen itself is of a more regular oval shape, being rounder or less 

 truncate before. 

 The palpi, however, give the most obviously distinctive character : the 

 radial joint is short and equal to the cubital in length ; it has two 

 Ll^N. PHUU. — ZOOLOCiiT, TOL. XI. 39 



