MODIFICATIOXS OF THE TUOliAX. 



741 



The first of tliein isBoci/dito/i tintinna'bulariferuin,^, native of 

 Brazil. Altliougli the largest of the extensive group to which it 

 belongs, it is but a little creature, being about as long as a com- 

 mon house-fly, but not so stoutly made. The colour of the body 

 is 23file brown, while that of the thorax, with its extending 

 appendages, is black. The form of these appendages can be 

 better seen by reference to the illustration than by description. 

 The four round knobs look very much like hawk-bells, and have 

 given rise to the long specific name, which signifies " bell-bearer." 

 They are covered with long black hairs. 



The generic name Hyi^acmclie.nia signifies " high-necked," and, 

 as may be seen by reference to the illustration, is very appro- 

 priate. The figure is much enlarged, the insect being about as 



1 iL. 4> -H\psaiuhenia ■W( stw . 

 (1 1 )\Mi , black thoi i\ ) 



large as the preceding species. It is one of an extensive group 

 all of which are remarkable for the singular development of the 

 thorax, and its division into a fork-like extremity. It is rather 

 variable in point of hue, but the average colour of the body is 

 pale brown, and that of the thorax blackish brown. It is a 

 native of the Philippines. One species, Hijpsauclienia Harcl- 

 wichil, has the extremity of the thorax just like a pair of sugar- 

 tongs, the ends of the fork being flattened into a spoon-like 

 shape. 



