OF MALAYA — PART I. 



131 



The Ovum (fig. l). 



The upper surface is narrow and the floats do not touch its margin (type 1 of 

 Christophers). The narrow striated frill is continuous around the whole of the 

 margin of the upper surface. The thin membrane which covers the under 



Fig. 1. — Egg of Anopheles tessellatus, Theo. 



surface of the ovum, except over the area occupied by the floats, has a reticulated 

 pattern. The floats are oblong in shape and extend over the middle two-thirds 

 of the length of the ovum ; each float has about twenty corrugations. Length 

 of ovum, 0*45 mm. 



/ \ 

 Fig. 2. — Newly hatched larva of Anopheles tessellatus, Theo. 



The Newly Hatched Larva (fig. 2). 



Head. The inner anterior clypeal hair is long and stout ; the outer clypeal 

 hair is very short, only about one-sixth the length of the inner ; the posterior 

 clypeal hair is placed far back, midway between the anterior clypeal hairs and 

 the row of frontal hairs. As in most newly hatched Anopheles larvae, all the 



