82 ENTOMOLOGICAL NEWS. [Feb., 'l6 



and the green forms. The inbreeding of these hybrid Fi types 

 have thus far been carried to the stage of crossing, their eggs 

 secured in 1914-1915 which are expected to hatch F2 genera- 

 tion in 1916-1917. 



3. The pink and the green color which appeared soon after 

 the first molt in the individuals of the progeny Fi remained 

 practically the same throughout their lives. The pink color as 

 well as the green is hereditary and is undoubtedly of germinal 

 origin as surmised by Wheeler. This precludes the idea of 

 these colors in katy-dids being dependent on absorbtion of col- 

 oring matter taken in with the food as supposed by Knab. 



4. The eggs of Amblycorypha are laid in the ground, this 

 habit being materially different from the egg-laying habits ex- 

 hibited in other katy-dids. 



5. The time required in hatching the eggs is two or three 

 years, showing remarkable endurance to physical conditions. 1 



Notes on Lithocolletis with Descriptions of new spe- 



cies (Lcp.). 



By ANNETTE F. BRAUN, Cincinnati, Ohio. 

 Lithocolletis insignis Wlsm. 



A number of mines of this species were found on the un- 

 derside of leaves of deer-brush, Ccanothus integerrimus H. & 

 A. in Yosemite National Park, California, July 26, 1915. 



The mine occupies a comparatively small area in which the 

 leaf substance is almost entirely eaten out, and the lower epi- 

 dermis is closely wrinkled at maturity. The unenclosed pupa 

 is formed at one end of the mine. 



The single specimen reared (imago, Aug. 15) is somewhat 

 paler than the usual form of the species and lacks some of the 

 dark margins. The basal streak is connected with the dorsal 

 streak merely by a broken line of white scales. A slight indi- 

 cation of the saffron ground color toward the outer edge of 

 the basal white patch places it somewhat intermediate between 

 the extreme forms described by Lord \Yalsingham. 



In connection with the variations just mentioned in L. in- 

 signis it is interesting to note that similar modifications in color 

 and pattern occur in L. lun/cni, its nearest relative. In pale 

 specimens of L. haijcni, the dorso-basal white patch often ex- 



distribution in the United States of pink katy-dids, Ambly- 

 corypha oblongifolia and the allied species will be presented in a sec- 

 ond contribution. 



