138 ENTOMOLOGICAL NEWS. [May, 



chamisorus. Kodiosoma, April 8th, on Trifolium dliatum, Esc- 

 holzia epeciodes. Gillia achill<zfolium, Festnca myurus and 

 dried twigs. Lyctzna piasus, on the racemes of the Lupisus 

 densiflora, and on the bracts of L. chamisonis after they 

 have fruited, Lyc&na var. on the innersideof the unopened buds 

 of the thyrse of the sEsciiliis californicus (Buckeye). Pyrameis 

 carye, May 6th, on the leaves of Lupinus, upperside. JLyccena 

 acmon, on or near the top buds of Hosackia parviflora. Ccenym- 

 pha California, May 6th, on dried twigs near its food plant, 

 Me/tea bubbosa (a grass). Thecla nelsonii, June gth, Liboccdrus 

 dicurrens, always on the shaded side of the leaves. Ctenucha 

 rubroscapus, July loth, on the stalks of Hosackia forrey a Alaria 

 florida, July loth, Oenothera brenuis var. grandiflora, buds 

 habits same as the eastern species. Hepialus lembertii, most any- 

 where on the ground and in the edge of marmot holes, wet low' 

 ground. Anthocharis lanceolata, on the fruit pods of the Arabis 

 arcuata. Chrysophamcs mariposa, on the stalk and the under- 

 side of the leaves of Vaccinium. Chrysophanus helloidcs, Oxytheca 

 sp2ig2ih'na and Guzoppytum diffusum. Melit&a chalcedon, on 

 Pentstemon brachycarpa and not gregarious like the high Sierra 

 variety. 



o 



A CASE OF MIMICRY. 



By OTTO LUGGER. 



Among the many curious things encountered among insects 

 few are more interesting than the mimicry shown by many of our 

 pets. It almost seems as if some of them could actually distin- 

 guish not simply between colors, but even between the most 

 delicate shades of colors. Those that have hunted for Catocalce 

 have reasons to feel certain that these showy moths know all 

 about the colors of the upper surfaces of their front wings, and 

 that they are perfectly able to select such portions of the bark of 

 trees that harmonize and blend with them. We find the same 

 thing among the Geometridae, only in this case the color of the 

 upperside of both wings has to come into action, as these delicate 

 moths rest with more or less expanded wings. Some years ago 

 I accidently discovered a member of this family of moths that 

 forms a most peculiar exception to this rule. While collecting 



