74 ENTOMOLOGICAL NEWS. [Feb., '16 



FIRST SUCCESSFUL EXPERIMENT IN CROSSING THIS ORIGINAL 

 1912 FEMALE PINK KATY-DID WITH A MALE OF 



THE NORMAL GREEN FORM. 



On August 9, 1912, a normal green male was introduced in 

 the same cage with the female pink katy-did. Two days later 

 die male was seen making advances to the female, and on the 

 fourteenth conjugation was effected, and the female was no- 

 ticed with a semi-transparent spermatophore attached to her 

 body. She carried the latter about for a number of hours, 

 when finally I saw her devour about half of the capsular mass, 

 the remaining part dropping to a leaf below the point where 

 she was standing among the leaves of mint growing in her 

 cage. Several times subsequently, notably on August 19 and 

 21, I saw her with a spermatophore attached to her body, thus 

 establishing the fact that fertilization of the eggs had doubtless 

 occurred, and especially as her abdomen became distended with 

 eggs by the last of August. 



EGGS LAID IN THE GROUND. 



It was not until August 28th that I actually saw her oviposit, 

 though on the 26th, I saw her searching about on the earth in 

 the bottom of the cage. Near six o'clock in the afternoon of 

 the 2<Sth, I saw her slowly walking about on the wet ground, 

 having come down* from her usual abode among the sun-ex- 

 posed leaves of the mint and goldenrod. At the roots of the 

 latter she nibbled at the soft covering of earth. Then she 

 brought her large ovipositor forward under her body, and with 

 the aid of her mandibles she guided the end to a chosen point 

 on the ground. She was only a few minutes forcing a hole 

 with her ovipositor and laying her eggs in the soft earth. Im- 

 mediately afterwards I again saw her go about in a similar 

 manner searching the ground, and only a slight distance away 

 she oviposited a second and a third time, apparently only lay- 

 ing a few eggs at a time. Similarly at six o'clock in the 

 afternoon of September 9 and 10, she was seen laying eggs in 

 the vegetable mold. In all probability she laid eggs occasion- 

 ally in the interval between these dates, as she was incidentally 

 noted from time to time on the ground. 



