290 FAUNA OF NEW ZEALAND. 



DlPTERA. 



Simulium? Namu, or sand-fly. Polack, New Zeal., 



p. 319. 

 Inhabits New Zealand. 



Most numerous on the beach and by the sides of creeks and 

 rivers. Yate, New Zealand, p. 72. 



To some insect, of a genus allied to Simulium, is to be referred 

 the New Zealand sand-fly alluded to in the following passage : 

 " A sort of little crane-flies (iipula alis incumbentibus) became 

 remarkably troublesome during the bad weather. They were nu- 

 merous in the skirts of the woods, not half so large as gnats or 

 musketoes, and our sailors called them sand-flies. Their sting 



was extremely painful All, however, were not equally 



affected." Forster, Voyage, i., pp. 135, 136. 



" The most mischievous animals (at Dusky Bay) are the small 

 black sand-flies, which are very numerous, and so troublesome, 

 that they exceed everything of the kind I ever met with : wherever 

 they bite they cause a swelling, and such an intolerable itching 

 that it is not possible to refrain from scratching, which at last 

 brings on ulcers like the small-pox." Cook, Voyage in Reso- 

 lution and Adventure, i., p. 99. 



Culex ? Waiwai-roa, or Mosquito. Polack, 1. c. i., p. 319. 

 Inhabits New Zealand (swamps). Polack. 



" Musketoes abound in the woods, and by the side of streams ; 

 but they are only lately imported. According to Cook, these insects 

 were found on his first visit in great abundance in the woods. The 

 natives deny this." Yate, p. 72. 



On Lieutenant Cook's voyage in the Endeavour, these flies are 

 mentioned as follows : " Of mosquitoes and sand-flies, however, 

 which are justly accounted the curse of every country where they 

 abound, we did not see many : there were, indeed, a few in almost 

 every place where we went on shore, but they gave us so little 

 trouble, that we did not make use of the shades which we had pro- 

 vided for the security of our faces." 



133. Thereva bilineata. (Fabr.) Wicdem., Aussereur. 



Zweifl., Ins. i., p. 229. Bibio bilineata. Fabr. 

 E. Syst., 757. 3. 

 Inhabits New Zealand. 



134. Eristalis trilineatits. (Fabr.) Wiedem., Aussereur. 



