ON SOME RARE ARACHNIDS 425 



with the hchen-covered twigs on which it generally rests. A 

 very ill defined and broken white or grey line usually runs trans- 

 versely across the anterior part of the abdomen bisecting the 

 tubercles. In the middle line between the tubercles this shows 

 an angle with its apex in front. This angle is nearly always 

 present, and is sometimes the only part of the line which is 

 not obliterated. The transverse line separates off the darker 

 anterior part of the abdomen from the greyer or greener 

 posterior part. The latter bears a dentated greyish or greenish 

 leaf-like pattern, narrowing towards the spinners. A. drome- 

 darius on the other hand is of a warm reddish brown, heather 

 coloured hue. This I noted very distinctly on catching the 

 specimens. The transverse white line on the anterior part of 

 the abdomen is distinct and w^ell defined. It shows a central 

 angular projection like that of A. gibbosns. In front of the line 

 the abdomen is of a dark reddish brown colour, showing a 

 few white blotches and some smaller dark brown spots. The 

 posterior part of the abdomen is reddish brown with many 

 dark brown and a few yellowish brown spots. The dentated 

 leaf-like pattern has white external margins. Transverse dark 

 brown bands cross it from one side to the other. These 

 diminish in breadth towards the spinners. Each is rather 

 crescentic, the concavities of the crescents being in front. 

 Laterally each runs forward, being in this way continuous 

 with the band in front of it, and thus forming a lateral dark 

 band inside the white margin of the pattern. A few white 

 blotches are scattered over the parts of the abdomen external 

 to the pattern. Beneath, the abdomen is of a very dark brown, 

 the spinners and vulva being of the same hue. 



The CEPHALOTHORAX is of a reddish brown colour, 

 darkest at the sides, and covered with short hoary hairs. 

 The central eyes form a trapezium very slightly broader 

 in front than behind. ThorelP makes a great point of 

 this as distinguishing the species from Epeira bicornis (BL), 

 which is identical with A. gibbosus. He says that in 

 dromedarius the area of the four central eyes is very 



* Remarks on Synonyms of European Spiders, I,, 22. 



