HARD WICKE'S S CIENCE- G OSSIF. 



273 



towards the tail part as to look black. A considerable 

 portion of the tail is yellow, shading off to deep 

 orange; round the eyes, and within the impressed 

 line, there is a space of deep orange, approaching to 

 red, but the amount of colour varies in different 

 specimens. The spur on the last joint but two of 

 the hind leg is rather large. 



Arrenuriis maaclator (Miiller). In this mite the 

 tail part is only slightly smaller than the body. It is a 



mites. My figures are intended to assist in the iden- 

 tification of the creatures, and not to stand as their 

 portraits. Moreover, verbal description is less neces- 

 sary where recognisable figures are given, and, as in 

 this instance, I may frequently give a sketch of the 

 body of the mite, without drawing the legs. I shall 

 thereby save a good deal of labour in the drawing, 

 and space in the valuable columns of Science- 

 Gossip. 



Fig. 203. — Arrenurus buccinator. 



Fig. ^o^.—Arrenitrjis 

 maculator, upper 

 side (I). 



Fig. 205. — A. maculator, 

 upper side (2 in.). 



Fig. 206. — Hind leg. 



Fig. 20S. — Central part of tail. 



Fig. 210. — Central 

 part of tail of A. 

 ■viridis. 



Fig. 207. — Arrenurtis macu- 



lator, under side. 



Fig. 209. — Hind leg of A. 

 viridis, showing spur. 



Fig. 211. — Arrenurus tiiridis. 



very beautiful mite, and will be easily recognised 

 /rem the drawing. It has the spur on the last joint 

 but two of the hind leg ; and the central projection 

 from the tail is peculiar. My sketch does not show 

 the beautifully maculated surface of the mite, and my 

 figures must be taken as mere outlines ; indeed, it 

 requires a very superior artist, and the assistance of 

 -colour, to give even an idea of the great beauty of all 

 the Arrenuri, as well as of most of the other water 



AriciMrus vlridi: (Duges). This niiie much 

 resembles maciilator in appearance. It is, however, 

 easily distinguished by the peculiar formation of the 

 central projection from the tail. In inacnlator it is 

 somewhat like a chisel with a convex edge, whilst in 

 viridis it more resembles a beautiful device for the 

 head of an iron palisade, for which it might well serve 

 as a model. The spur on the last joint but two of 

 the hind leg is also well developed. 



