( xxi ) 



Calif. Acad. Sci., 2nd series, vol. ii, 1890, p. 91 ; Ent. News 

 of Philadelphia, vol. xi, 1900, pp. 331, 413, 533, PI. II, fig. 

 28, and PI. XIV.) I am not aware that the method of pupal 

 suspension in this species has heen recorded, but the pupa of 

 the other species of Xeophasia, viz. X. menapia, Feld., is stated 

 by II. Edwards to be invariably attached with the head up- 

 wards. (Proc. Calif. Acad. Sci., vol. v, 1875, p. 165.) Behr 

 is of opinion that the two known species of Neophasia should 

 be referred to the genus Eucheira ; this, as I. have elsewhere 

 stated (Trans. Ent. Soc. Lond., 1904, p. 304), seems to rest 

 on insufficient evidence, though there is doubtless some 

 affinity between the two genera, and both belong to an early 

 Pierine stock. When the life history of the primitive Pierines 

 (Metaporia, Pontia, etc.) of Central Asia is better known, it 

 will be interesting to see whether the social habit and com- 

 munity of larval shelter will be found to prevail with any of 

 these in a form at all comparable with those of their relatives 

 on the other side of the Pacific. As I have before suggested 

 (Trans. Ent, Soc. Lond., 1904, p. 303), it seems not at all 

 unlikely that the common larval habitation of Pontia (Apwia) 

 crafcryi, rudimentary as it is, and belonging only to the early 

 larval stages, may be a degenex*ate or undeveloped form of 

 the elaborate silken nest constructed by the not very 

 widely-removed Eucheira socialis." 



Dr. W. J. Holland, of Pittsburg, Pa., U.S.A., said that 

 although he had been a Fellow of the Society for many years, 

 this was the first meeting which he had ever attended, and he 

 regarded it as a rather peculiar coincidence that the subject 

 under discussion should be one from the study of which he 

 himself had just freshly come. Continuing his remarks, Dr. 

 Holland said : — " In the early part of the past winter, the 

 president of one of the Mexican railways showed me some 

 pieces of a white silken Aveb, remarkably tough and durable, 

 which represented the covering of what he called 'a great 

 cocoon,' abundant on the branches of the ' madroha ' trees 

 in the State of Durango, and always full of a multitude of 

 caterpillars. I asked him to write at once to Mexico and 

 request the superintendent of his railway to ship me a number 

 of these silken bags. In due course of time I received a large 



