16 Journal New York Entomological Society. l^'"i- x^vi. 



Mating. 



The male follows the female about for some moments, often min- 

 utes, before mounting her with a sudden pounce. He appears to keep 

 at a respectful distance and if his first clasp is not secure he gets away 

 quickly. And well he may, for in some of the glasses the males were 

 killed and in one case the female was observed still feeding upon her 

 unlucky mate. The males are smaller and more slender than the 

 females and take a position on the left side of the female (as a rule) 

 and a litle below, appearing to perch upon the middle femur of the 

 female's left leg. The middle and right hind legs of the male lie along 

 the left margin of the female. With the antenna? directed backward 

 he remains rigidly in place while the female moves about with an- 

 tennae directed forward. It was not possible to ascertain how the male 

 could retain his position so firmly in place. All efforts to be certain 

 that his legs were involved in clasping failed. Mating took place at 

 short intervals and often lasted for half-hour periods. One pair was 

 observed to mate repeatedly every day from June 28 to July 16 when 

 the male was found dead. Eleven eggs had been laid during this 

 time. 



OVIPOSITION. 



The eggs were hidden away, one in a place as a rule, between the 

 leaves of moss or benath the sheaths of the shore grasses. When in 

 the moss they are exceedingly inconspicuous and when at the base of 

 grass clumps remain concealed until disturbed. Two illustrations 

 are submitted herewith to indicate the manner in which they are to be 

 found. (See PI. I, figs. 6 and 10.) 



Egg of S. anthracina. 



Size. — Length 1.05 mm., diameter .375 mm. 



Shape. — Elongate cylindrical, one end broadly rounded, the other 

 constricted near the end and curved upward in such a manner that in 

 profile one side appears slightly concave and the other considerably 

 convex. 



Color. — Pearly white and shiny. Smaller end slightly whiter. 

 Surface finely granular as seen under low-power compound. 



