3 ENTOMOLOGICAL NEWS. [Jan., 'lO 



may have been responsible for his death. A few clays later 

 she also died, and the eg-gs have been removed to the new shed 

 in the hope of starting a colony to replace the old one, dis- 

 persed by the destruction of their home. It does not seem 

 worth while to describe the eggs here, since they have already 

 been briefly characterized in the article quoted, but it may be 

 said that, as on former occasions, they were not laid in masses 

 nor according to any system, but attached at random to the 

 walls. 



The Butterflies of San Francisco, California. 

 BY FRANCIS X. WILLIAMS, San Francisco. 



San Francisco (in law the city and county of San Fran- 

 cisco) is situated at the north end of a peninsula about 30 

 miles long. It is roughly quadrate in shape, and occupies an 

 area of about 42 square miles. A spur of the San Bruno 

 Mountains, extending from the south into the city, reaches its 

 highest point in Twin Peaks, over 800 feet above the sea level. 

 The north and northwest shores, on the Straits of the Golden 

 Gate, are quite precipitous and rugged, and still retain much 

 of the native vegetation. Extending southwards from this 

 point, and occupying a great part of the western half of the 

 city, is a rolling country of sand dunes and brush, which, how- 

 ever, is becoming rapidly cleared for human habitation. In 

 the southwestern corner of the county is the Laguna de la 

 Merced, occupying a fertile valley near the ocean. Much of 

 this land has lately been converted into truck gardens. Lobos 

 Creek, skirting the southwestern edge of the Presidio, the 

 military reservation to the north, is still somewhat undisturbed 

 by humanity, but Lone Mountain, an isolated sandy hillock, 

 the classical resort of Lycacna screes, is situated too near the 

 midst of the city to be left unmolested, and is frequently the 

 scene of some autumnal grassfire, not very salubrious to the 

 welfare of its now decimated insect population. 



San Francisco in early times was a hilly and barren waste, 

 with no large trees, but much scrubby growth. Dr. Behr says 



