564 Mr. C. L. Withycombe's Notes on 



Chrysopa pmsina is a woodland species giving preference 

 to pine woods. The duration of imaginal life is from the 

 beginning of June to the end of July, sometimes later. 



Eggs are laid on pine needles or on the undersides of 

 leaves, etc., being generally deposited singly, or at most 

 six together, well spaced apart. The egg is bright green 

 in colour, -S-'d mm. long, and attached at the end of a 

 stalk of about 6 mm. in length. After two to three days 

 a yellow patch appears on one side, later the green turns 

 to grey, and just before hatching the segmentation of the 

 embryo is discernible from outside. The larva escapes in 

 from seven to eleven days after oviposition. 



The first-instar larva is white in colour, the head being 

 also white with black markings. These markings are of 

 the same pattern as in the later larva. The three distinct 

 black sclerites on the prothorax are very typical of this 

 species. Skins and other debris are placed at once on 

 the back, on hatching, and a fairly dense coat is carried 

 throughout the whole of larval life. The larva is thus 

 similar to alba and flavifrons. Larvae found on pines 

 infested with Chermes add to their coats some waxy wool 

 of the aphids. 



In the second instar the larva is similar to the full- 

 grown larva, except in size. 



Dcscrijjtion of Third-inslar Larva. ■ (Plate XLI, fig. G.) 



Length when full fed 6-7 mm. Body white, with setigerous 

 warts. Markings few, blackish. Three large black prothoiacic 

 sclerites. 



Head smoky with blackish markings which often almost cover it. 

 Two broad black lines run forward from the base of the head, 

 giving off a branch to each eye and then diverging from each other 

 to the bases of the antennae. A triangular black mark is enclosed 

 in the middle of the anterior margin. These markings tend to 

 spread entirely over the head. Eyes black; antennae and palpi 

 blackish ; jaws castaneous, distally darker. 



Thorax white, with conspicuous warts bearing long setae. On 

 the prothorax are three shining blackish sclerites, the two outer 

 ones slightly larger than the median one. In both prasina and 

 ventralis these three sclerites are highly characteristic, and thoiigh 

 a median sclerite is found in many other Chrysopids it is generally 

 small or but slightly pigmented. The meso- and metathorax ha.ve 



