222 RED SPIDER. 



towards the extremity of the legs and rostrum. Eyes san- 

 guineous. Abdomen from reddish brown (with ingested food), 

 varying to dark brown (sometimes also greenish brown). 

 There are four rows of setas — two median and two marginal 

 — along the back, the setjB being all flexible, slender, and 

 altogether hair-like. The legs very richly furnished with 

 long setae. The four claws of the legs all of the same size. 

 Palpi rather long, especially in the male ; the tentacle fur- 

 nished at the apex with a small hyaline cylindrical appendage™ 

 Body ovate, convex above, somewhat impressed transversely, 

 the skin not raised in warts at the setae. 



"Male with a body about half the size of that of the female 

 (although the legs are of the same size as those of the female), 

 of an elongated heart-shape, narrowed behind, with the 

 anterior legs stouter than the others. Palpi with the second 

 joint gibbous above, and [furnished] with a small sharp 

 horn-like appendage. Penis hooked, placed at the extremity 

 of the abdomen. Colour rose-red, paler than in the female. 

 Larva hexapodous, globose, with short setae, rose-coloured."* 



The following descriptions refer to another species of "Pied 

 Spider" {Tetranychus), recorded by Donnadieu as Tetranyclius 

 rubescens, by G. Canestrini as T. telarius, Duf. ; but also 

 possessing, like the preceding species, an extraordinary num- 

 ber of synonyms.! 



This kind is noted by Donnadieu as rather common, and 

 also that he has "very often found it on the Plum tree." 

 Canestrini mentions it as common on almost all plants, and 

 as sometimes very injurious ; and he also draws attention to 

 the many names under which it has been described by different 

 authors consequently on its "vast geographical distribution," 

 and the various natures of the localities which it frequents. 



Tetranyclius rubescens, Donnadieu. 



Trombidiuni Icqjidum, Hermann. 



Tetranychus cristatus, Duges. 



" Body entirely red, often very full coloured ; the feet reddish 

 yellow, slightly transparent, generally very large. The larvae 

 hexapod, as well as the males, of a slightly reddish tint, the 

 feet pale yellow. The organic characteristics are very similar 

 to those of the preceding (i.e. T. telarius, ante, p. 219). The 

 body is enlarged and convex towards the anterior part. It 



* Not being myself a thorough Latin scholar, I should perhaps mention that 

 I submitted my translation for skilled examination, and offer it duly revised 

 as above, with many thanks for the assistance kindly given. — E. A. 0. 



t As these will be found in the works to which references are given accom- 

 panying the description of the species, I do not append them here. 



