APPLE LEAVES CHRYSOPA SPECIES. 85 



from that point a black stroke is sent down-wards upon the cheeks, 

 which stroke is margined on its anterior side with tawny red. Palpi black 

 with white rings. A small oval black spot upon each side of the throat. 

 Thorax with a dusky or black mark each side at its apex and four spots above 

 at the angles of an imaginary square, and behind these a faint yellowish brown 

 ■spot each side of the middle. Feet pale dull yellowish. Wings pellucid, their 

 tips angular, those of the upper pair very slightly so; an opake pale greenish 

 yellow stigma; veins pale green; veinlets branching from the rib vein on both 

 sides black at their bases; two series of veinlets towards the tip of the wings 

 black, some of them sometimes pale green. Lower wings, veinlets on the out- 

 side of the rib-vein and bases of those opposite to them black. Wings expand 

 1.10. Found the last of June in this State and also in Illinois. When captured 

 it emits the disagreeable odor peculiar to several of its kindred species. 



5. (2.) Head above with black dots but no stripes. A tawny 

 yellow spot on each cheek, commonly with a black line or dot 

 on its posterior edge. 



6. (17.) More than two dots upon the top of the head. 



7. (12.) Dots six in number, four at the angles of an imaginary 

 square, the anterior two often confluent with the black margin 

 of the antennse sockets, and one each side behind the eye. 



8. (11.) A black dot or streak on the posterior edge of the 

 tawny spot on the cheeks. 



9. (10.) Ends of the veinlets black. 



The O-marked Golden-eye ( C. Omikron). This is of a pale green color 

 with a light yellow head and a black mark surrounding the base of each an- 

 tenna, broader on the upper side, and above interrupted with orange red be- 

 tween the two anterior dots on the top of the head, which are commonly con- 

 fluent more or less with these black rings. This species corresponds with the 

 one last described in all its details, except that in addition to wanting the black 

 stripes on the head, the veinlets branching from the rib-vein on both sides are 

 black at their tips as well as their bases, and the remaining transverse veinlets 

 are mostly black at their bases ; and instead of a line in the tawny spot upon 

 the cheeks this commonly has only a black dot. A variety occurs in which 

 the tawny reddish spot on the upper side of the basal joint of the antennse is 

 wanting. The wings expand from 0.95 to 1.10, the females being slightly 

 larger than the other sex. It is a common species during the month of June, 

 and exhales the same disagreeable odor as the preceding. 



10. (9.) Ends only of the veinlets on the outer side of the rib 

 vein and bases of those given off from its inner side black, all 

 the others green. 



The Yellow-headed Golden-eye ( C. xanthoce 2 .hala) is distinguished from 

 the foregoing by having the veins and veinlets all green, except those veinlets 



