114 MR GOODSIR ON A NEW NYMPHON. 



312. Sarcophaga intricaria ? 



313. Musca illustris. 



314. Musca vomitoria. 



315. Anthomyia ranuncularia. 



316. Tachina ? 



317. Pipunculus ruralis. 



318. Atherix crassicornis. 



319. Scatophaga stercoraria. 



320. lateralis. 



321. littorea. 



322. Dryomyza flaveola. 



Description of a New Species of Nymphon. By H. D. Goodsir, Esq. 



Ntmphon Giganteum. — With the palpi twice as long as the ros- 

 trum, and the two last joints of equal length ; with the pincers of the 

 mandibles very long, slender, and linear; and with the oviferous 

 legs longer than the first four joints of the ambulatory legs. 



Description. — The whole animal of a straw-colour, except the 

 proximal extremities of the joints of the legs, which are pink-coloured. 

 Two joints of the mandibles somewhat long and rather powerful : 

 the pincers are weak, slender, and almost linear. The palpi are 

 larger than the mandibles, five-jointed, slender, and the first or proxi- 

 mal joint is about one -sixth the length of the second ; the second 

 rather longer than the third, and clavate ; the fourth and fifth equal, 

 which last is ovate and slender. The rostrum is hardly so long as 

 the first joint of the mandibles, and is almost linear, having a very 

 slight dilatation about the middle. It is concealed altogether on 

 each side, by the mandibles and palpi, and very slightly superiorly, 

 by the mandibles alone. The first segment of the body is much 

 larger than any of the following, and is very much dilated anteriorly, 

 for the attachment of the organs just described ; posteriorly, it is also 

 dilated, and gives attachment on either side to the oviferous legs, and 

 dorsally to the occeliferous tubercle, which is erect and truncated. 

 The oviferous legs are very strong, and have the two middle joints 

 robust and p.hort ; the distal joints are hispid. The ambulatory 

 legs are lonr^ and slender ; the two tarsal joints equal of length, claw 

 strong. Span of the legs 6 inches. 



The above described Nymphon is very similar in its characters 

 to Nymphon Johnstoni. The forms, however, of the mandibles, 

 palpi and oviferous legs, are very different and sufficiently strong to 

 justify the formation of a new species. 



Taken in the sea at Embleton. 



Plate III. Fig. 1. N. giganteum of the natural size. Fig. 2. 

 The rostrum, palpus, and mandible magnified. Fig. 3. An ovife- 

 rous leg. 



