444 Mr. A. G. Butler on new Species 



region less contracted, lateral margins subangulated in the 

 middle, whence they converge towards the hinder extremity ; 

 ventral surface slightly concave, testaceous, with two longitu- 

 dinal brown*lines ; spinners concealed by dense hairs, which 

 converge towards the central line. Length 6 millims. j relative 

 length of legs 1, 4, 2, 3. 

 (Coll. by Gulliver.) 



ACARID^E. 

 Genus HOLOTHYKUS. 



Holothyrus ? testudineus, n. sp. 



Carapace ovate, convex, conical in front, fawn-coloured, 

 clouded with brown, smooth and shining, with well-defined 

 lateral carina ; legs rather short and robust ; ventral surface 

 flattened and shining behind, with an apparently hinged oblong 

 projecting anterior plate, wider in front than behind ; body in 

 front concave, with onli/ three 2^m'>'s of legs, their relative size 

 3, 2, 1 ; antenna with hairy terminal joint. Length | millim. 



(Coll. by Gulliver.) 



Although fourteen examples of this species have come, not 

 differing in size or structure, I have been unwilling to erect a 

 new genus for its reception. From many points which it 

 appears to have in common with H. coccinella of Mauritius, I 

 think it possible that it may turn out to be an immature con- 

 dition of that species. 



MYEIOPODA. 



Genus Strongylosoma. 

 Strongylosoma erucaria^ n. sp. 



Deep chocolate-brown ; under surface, legs, lateral wings, 

 and hind margins of the segments pale testaceous ; segments 

 glabrous, first dorsal segment with well-defined lateral carina ; 

 preanal segment terminally rostriform. Length 8 lines, width 

 1 line. 



(Coll. by Gulliver.) 



Genus Cambala 

 Camhala nodulosa, n. sp. 



Reddish testaceous ; dorsal segments with a lateral grey 

 stripe ; first segment longitudinally multisulcate ; remaining 

 segments crossed by two rows of tubercles, between which, on 

 each segment, is a depressed line ; posterior margins narrowly 

 rebordcd. Length 8 lines, width 1 millim. 



(Coll. by Gulliver.) 



