362 BRITISH ORlBATIDiE. 



NOTASPIS TIBIALIS,* Nic. PI. XXVIII, figS. 6—8. 



Notaspis tibialis, Nic. P. 449, pi. iii, fig. 8. 

 — — Haller. P. 305. 



Average length about '48 mm. 



Average breadth about '29 mm. 



Average length of legs (first pair) about '20 mm. 



Average length of legs (second pan^) about "16 mm. 



Average length of legs (third pair) about •18 mm. 



Average length of legs (fourth pair) about '22 mm. 



This species resembles the last ; it is very active. 



Colour bright chestnut-brown. 



Texture polished in appearance, really very finely 

 punctured. 



Cephalothorax rather small and not very clearly 

 marked off from the abdomen. Rostrum round-pointed, 

 slightly trifid ; rostral hairs large and curved, set far 

 back. LamellcB long blades on edge, narroiver at the 

 distal than the 'proximal ends ; no cusps ; translamella a 

 mere line, not conspicuous. Lamellar hairs rather 

 long, setiform, directed forward almost horizontally. 

 Pseudo- stigmata hidden by the advancing corners of 

 the abdomen. Pseudo-stigmatic organs with slender 

 2}eduncles of moderate length and recurved fusiform heads 

 roughened with minute points. Interlamellar hairs 

 very long, setiform, rough, almost perpendicular. 

 Tectopedia well developed. Apodemata joined to the 

 sternum. 



Legs rather short, fourth pair not reaching the hind 

 margin. Femora with blades ; each front tibia has a 

 large rounded elevation in the anterior end of the 

 median line from which the tactile hair springs. 

 Claws tridactylc, strongly heterodactyle. Tactile hairs 

 to all the legs ; most joints bear one or two thickened 

 spine-like hairs near the distal extremity, and some 

 fine hairs ; tarsi thickly clothed as usual. 



Abdomen longer than broad, rounded posteriorly, 



* Tibia, tlie sbanls. 



