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igOl] ENTOMOLOGICAL NEWS. 317 



collectors \'isit the mountain. When they come their stay is 

 generally brief, and even in the most favorable weather they 

 carry away but few specimens, and this butterfly is wonderfully 

 abundant. During the ten days of my visit in July of this 

 year I saw literally thousands. As I clambered over the rocks 

 on the eastern slope of the cone, from everj- crevice and hole 

 fluttered away from my approach the mottled brown wings. 



On lichen-covered rocks they rested, hardly to be distin- 

 guished from the background, so similar to their own coloring. 

 From tufts of grass and tussocks of sedge, from cushions of 

 bright green moss, from thick bunches of the Greenland sand- 

 wort with its delicate white flowers, the sad-colored goddess 

 rose as I came near. The whole air seemed at times alive with 

 brown-gray, floating, fluttering things like sere leaves in late 

 autumn. 



No, I am happy to believe and say that the Summit's oldest 

 inhabitant has come to stay, and that long after the tourists of 

 this generation have gone into the chrj^salis state in country 

 graveyard or city cemeter}-, our fragile-winged semidea will 

 still float and soar over these old gray granite rocks. 



O. W. Barrett is located at the Agricultural Experiment Station at 

 Rio Piedras, San Juan, Porto Rico. 



Notes from the New Mexico Biological Station. — I. A New 

 pest of Pine Trees. {Semasia offecta/is).— On July 8, 1900, Mr. F. Springer 

 directed my attention to some caterpillars burrowing in and injuring the 

 twigs of some imported pine trees in his plantation at Las Vegas, N. M. 

 This injury was like that produced by the Nantucket pine moth and other 

 allied species of the genus Retitiia, but I was unable to determine the 

 species in the absence of the moths. The caterpillars were about four- 

 teen millimeters long, yellowish-pink, without bands; piliferous warts 

 inconspicuous, concolorous with the body ; head shining dark amber. 

 Subsequently the same caterpillars were found infesting the wild pines 

 {Pinus scopidorum) at Las Vegas Hot Springs, proving that the insect 

 was a native one. I expected that the moths would emerge in the fall, 

 but as they did not, the jars containing the twigs were put on one side, 

 and not examined until early in June, when it was found that many moths 

 had emerged and died. The pupa is reddish-brown and has an anterior 

 pointed projection as in Retina frusirana, but it is not so long. The moth 

 has the anterior wings long and narrow for a Tortricid, the basal half 

 lead-colored speckled with white, the apical portion clear reddish-brown. 



As I was quite unable to discover any description applicable to this 

 insect, I sent a specimen to Prof. C H. Fernald, of the Massachusetts 

 Agricultueal College. He kindly informs me that it was described by 

 Hulst as Crambus offe< talis, but it belongs to the genus Semasia, and is, 

 of course, in no way related to Crambus except in superficial appearance. 

 The original specimen described by Hulst was from California, and the 

 description appeared in Trans. American Entomological Society, Vol. 

 xiii, p. 166. I know of no remedy but that of cutting ofT and burning 

 the ipfested twigs.— T. D. A. Cockerell. 



