1890.] 129 



part being colored 

 stands out dis- 

 tinctly, and is di- 

 vided into two by a 

 transverse curved 

 line, and its an- 

 ' \' terior part again 



subdivided by a line running lengthwise. Metanotum without anything which can 

 be called a plate ; it appears hardly to differ at all in texture from the abdominal 

 segments, and bears two minute black dots and a discoloured patch. All the thoracic 

 segments have a few long hairs, those above the attachment of the legs being 

 gathered together into small groups. 



The first two pairs of legs have the femora and tibiae dilated, and the inner side 

 of the tibiae and tarsi, and the under margin of the femora, armed with spines ; the 

 distal end of the tibiae produced in the first pair into a long, and in the second pair 

 into a short, process, each process being further produced into a long spine ; tarsal 

 claws long, each with the usual basal spine. The posterior legs are very slender, the 

 tibiae apparently two-jointed, there being an obscure suture a little before the middle ; 

 the distal end of the tarsi in these legs is rounded, and the claw is very email and 

 short, beset with long and short hairs (this claw is practically aborted). The pairs 

 bear to one another the proportions of about Sj : 10^ : 13. The hairs on all the legs 

 are very long and numerous. 



Abdomen : first segment has the usual dorsal protuberance ; the lateral pro- 

 tuberances might almost be termed with more propriety "ventral" from their 

 position. The lateral line runs from the third to the seventh segment inclusiye in a 

 dense fringe ; on the eighth segment its character changes to a series of regularly 

 placed round dots, whence arise longish hairs, two from each dot. Last segment 

 above with the hind margin rounded, and bearing a row of long hairs (five or so) and 

 a few shorter ones ; anterior to these hairs is a partially hardened plate bearing some 

 spines or spinulose hairs. The anal limbs are broad and strong (if 2-jointed the 

 sutures are obscure) ; above they are beset with spines and margined with long 

 hairs ; the claws are articulated to the under-side, and are pretty long, terminating 

 in two hooks, of which one is much larger than the other. (A line of microscopic 

 sharp points is sometimes visible along the posterior outline of the anal limbs, but 

 I cannot determine its precise position). 



The slender filamentose branchial tracheae are placed on the anterior part of the 

 segments in fascicles, of apparently rarely more than four threads. Above the 

 lateral line they occur on segments one to eight inclusive ; in the first four segments 

 the bundles have usually four filaments, in the remainder three. Beneath, the fila- 

 ments seem to occur only on segments two to seven inclusive in two rows, which may 

 be termed latero-ventral and ventral ; the first is the smaller series, with two filaments 

 on the second and third segments, one filament on segments four to seven ; in the 

 second series usually with three filaments on all the segments. 



Colours and markings : head and thoracic segments yellowish. Head with two 

 broad black lines running along the entire length and converging behind ; prothorax 

 closely clouded with dark fuscous in its posterior part, and with a black hind 

 margin. Mesonotal plate closely dotted, and clouded with fuscous. The pieces to 



