22 ' W. WESCHE — THE LARVAL AND 



Pupa. 



The pupa has small trumpets^ hollowed out on the inner sides ; the plumes- 

 on the seventh segment are characteristic in structure, being a modification of 

 a branched hair. The anal plates have two ribs developed, the central or 

 inner ones bearing rather curious wavy hairs (PI. YI, figs. 4, 5 & 6). 



Length of thorax 2 mm. 



Described from ten larvse and three pupoe. 



[Larva3 and pup?e found in large water-holes and in the road puddles con- 

 taining opaque water, especially when such water has been fouled by the 

 excreta of cattle or of man. This is the commonest Anopheline larva and can 

 be found readily from April to November and probably all the year round. 

 The colour and markings of the larvre differ greatly at different ages. — 

 ^Y, M. G.] 



2. Cellia pharoensiS; Theo. 



Larva. 



The larvae of this species brought home by Dr. Graham are also of varioujy 

 stages ; there are two of over 3 mm., and three of 4^ mm. in length. 



The two smaller larva? present divei'sities of structure in the face, antennse 

 and palmate hairs. 



a. Head nearly as broad as the thorax, certainly longer, even leaving out 

 the space occupied by the brushes which are large ; the colour is rather dark. 

 The antennse are light in colour, as are also the rather weak spines at the tips. 

 The plumes on the face seem represented by very minute stellate hairs, but 

 those on the under side show as outer plumes, and consist of a single very 

 much feathered hair, which is as long as the antennae ; the eyes are long and 

 comparatively thin, and have a large pigment spot at the lower end. 



The thorax is small ; it bears the usual plumes of feathered hairs and the 

 two simple hairs noticed in Pyretoplwrus costalis. There are rather charac- 

 teristic thick feathered hairs in the middle of the dorsal side^ each with a 

 decided socket. 



The abdomen has feathered plumes on the first three segments ; palmate 

 hairs are present on the third to the seventh segments which are rather small 

 in size compared with the very large type found in other stages. They are 

 best seen on a semi-ventral, or semi-dorsal view, the larva tying partially on 

 its side. The comb is closely similar to that in the preceding species, but 

 the long spines are longer, and the pigment differs. 



The anal segment is large and of much the same type as in the preceding 

 species. 



Described from a single specimen. 



