RESEMBLANCE TO THE SPIDER CRAB. 



717 



Fig. 4-"it>. — Sejihina formosa 

 (Black and scarlet. i 



The pretty insect called Sephina formosa is a native of 

 Venezuela. 



The general colour is black with a violet gloss, and upon it 

 are sundry markings of 



• - M 



red disposed as seen in 

 the figure. The thorax 

 is fringed with black 

 hair. Below, it is mot- 

 tled with black and 

 scarlet, and along the 

 sides run a row of 

 scarlet wedge-like spots, 

 with a black spot in 

 the middle of each. 



Two figures are given 



of Daladcr acuticosto. 



One is seen on Plate 



XIX. Fig. 2, in order 



to show its appearance 



with closed wings ; while in the accompanying illustration a 



figure is given with the wings spread as if in flight. 



Although its colours 

 are simple, being only 

 various shades of brown 

 and yellow, it is a really 

 pretty insect. It is flat, 

 with the abdomen very 

 much dished, and the 

 whole of the surface is 

 marked with the two 

 colours alreadv men- 

 tioned. The thorax is 

 covered with tiny 

 spikes, just like that of 

 a very small spider- 

 crab, and these spines 

 make the sharp ends of 



the thorax rather formidable. The specific name acuticosta, or 



" sharp-ribbed," refers to this structure. Towards the end of 



Fig. 457. — Dalader aeuticosta. 

 (Brown and yellow.) 



