198 INSKCTS ABIJOAD. 



As is the case with many insects, the antennae of the female 

 are very much shorter than those of the male, being, indeed, 

 only about half as long as the body, and inconspicuous in every 

 respect. In many cases the pattern of the body differs in the 

 two sexes, so that the male and female might easily be mis- 

 taken for different species. The eyes are extremely large in 

 the male, and their black globular surfaces seem to occupy 

 the whole head. 



The general colour of the body is chocolate brown, and upon 

 it are drawn a number of pale whitish grey stripes, very sym- 

 metrically arranged. One runs along the middle of the head, 

 and two others diverge from it on either side, the three looking 

 very much like the well-known royal mark, the " broad arrow." 

 Three similar stripes run down the thorax, but parallel to each 

 other. The abdomen is adorned in like manner, one curved 

 stripe being on each shoulder, one running along the centre, and 

 then two more diverging from the middle stripe, so as to form a 

 second "broad arrow." The legs are white, except the ends of 

 the tibiae and joints of the tarsus, which are black. Beneath, 

 the insect is white, powdered with brown scale-like marks. 



There are many species of this remarkable genus, some 

 coming from the Philippine Islands and some from Ceram, 

 Sarawak, Celebes, &c, so that it has rather a large geographical 

 range. Their colours are not brilliant, being simple grey-brown 

 or black, but there is always a pattern of white, so that the dark 

 and light portions are boldly contrasted. 



Considering the length and slenderness of the antennae of 

 these insects, it is evidently no easy task to preserve them in 

 their integrity. Everyone who has collected insects knows h >w 

 difficult it is to avoid snapping off the antenme of insects, evon 

 when they are merely removed from one drawer to another. 

 When therefore insects have to be packed for travelling, then 

 to. undergo journeys by land and water, and then, which is 

 perhaps the worst trial of all, to be unpacked, pinned, and set 

 the difficulty of saving these long and delicate antennae may be 

 imagined. The mode employed by Mr. Wallace is the best that 

 I know. 



He takes with him a number of hollow paper cylinders, just 

 like squib-cases, varying considerably in diameter, so as to 

 accommodate different-sized insects. When he has taken and 



