April 1S9S.] 



PSYCHE. 



231 



(Berl. Ent. Z. 18S7). I would recom- between niv return from California in 



mend tliem, at the same time, to have the autumn of 1S76 and my final 



my type specimen of T. tricJioptera departure for Europe in tlie sprino- of 



in the Mus. Comp. Zool. in Cam- 1S77. -'"^1 ' would in this case not 



bridge, Mass., carefully examined in trust my own statement without further 



order to ascertain whether my descrip- verification, 



tion is correct. I wrote and published Heidelberg, Germany, 

 the Western Diptera in a o-reat hurry Feb. 12, 189:;. 



FAILURE TO EMERGE OF .^CTIAS 



LUNA. 



In looking over a box of cocoons to-day, 

 I came upon five, of A. lima, which felt 

 suspiciously light. I cut them open, and 

 in each I found an undeveloped imago 

 which had crawled out of the pupa-skin 

 and had not been able to force its way out 

 of the cocoon. 



Each one lay with its head against the 

 anal end of the empty pupa-skin, and the 

 cocoon was filled with " fluff" made by the 

 scales of the moth rubbed oft" in its struggle 

 to get free. 



Four days ago I received a large cocoon 

 of A. lima, sent by mail, and one end of 

 which was so wet that I expected the moth 

 to emerge at any time. Instead, the wet 

 spot dried, and two days later I cut open 

 the cocoon, and found the moth with head 

 and thorax out of the pupa-skin, and appar- 

 ently dead. Taking the pupa out of the 

 cocoon I began to cut away the skin, when 

 the imago moved feebly. By the time I 

 had removed all the pupa-skin the moth 

 was sufficiently revived to cling to my 

 finger, and was placed in a cage, where it 

 hung for twelve hours without expanding 

 the wings at all. 



The next morning, however, the wjngs 

 were fully spread, and the moth is now the 

 largest ? I have ever seen. The pupa- 

 skin was perfectly dry, and there has not 

 been one drop of meconium discharged. 



In the five cocoons first mentioned there 

 was no meconium, and no evidence of the 

 ends ha\'ini^ be;^n moistened. 



This may be an experience common to 

 entomologists, but it is entirely new to me. 



Caroline G. Soule. 

 Brookline, Mass., 



June 2, 1894. 



Entomological Xotes. 



Dr. S. W. Williiton of Lawrence, Kansas, 

 has in press a work, entirely rewritten, on the 

 classification and structure of North Ameri- 

 can Diptera. It will contain tables of all 

 the North American genera, including those 

 from Central America and the West Indies, 

 together with descriptions of larvae, habits, 

 anatomy, etc. It will appear next autumn. 

 In its preparation he has had the assistance 

 of Messrs. Aldrich, Townsend, Snow and 

 Johnson, who have kindly prepared or revised 

 the tables of the families with which thev 

 are best acquainted. 



In a recent and excellently illustrated 

 memoir (Musaeum Dzieduszvckianum, iv- 

 Lemberg) on the insect fauna of the petro- 

 leum beds of Boroslow, Galicia, Lemnicki 

 describes no less that seventy-six Coleoptera, 

 of which nineteen are regarded as identical 

 with living European insects, while the 

 others find their nearest allies in boreal 

 Kurope, Asia and America. As only four 

 species are identical with those found bv 

 Flach at Hosbach, Bavaria, in beds looked 

 upon as Lower Pleistocene by Flach, and 

 since the Hosbach Coleoptera as a whole 

 show far less boreal affinities than those of 

 Galicia, Lemnicki thinks the Hosbach fauna 

 must be considered Middle Pleistocene and 

 the Galician Lo\ver Pleistocene. 



