160 Journal New York Entomological Society. [Voi. v. 



EXPLANATION OF DIAGRAM. 

 A. Papilionid stem (Papilionides) characterized by the presence on fore wings 

 of vein ' IX;' B, Hesperid stem (Hesperiades) characterized by the absence of the 

 same vein. The titles of groups in italics denote that in these a reduction of the 

 radial branches occurs (specialization through the second evolutionary movement). 

 All the groups are arranged with regard to the specialization of the wing in the two 

 principal directions. The Jirst direction lies with the breaking up of the system of 

 the Media and the final redistribution of the outlying three branches between the 

 Radius and Cubitus, and this reaches a culminating point in the disintegration and 

 disappearance of the cross vein (Nymphalinse). In the Moths the same phenomenon 

 is repeated in the Attacinse [Rothsc/iildia, Samia, Fkilcsamia, Callosamia, Atta- 

 cus.y, Ila is the six-footed Pierid and main branch; lib the four-footed (brush- 

 footed) Nymphalid branch ; both have the same essential wing pattern, or style of 

 distribution of the veins and this is shared also by lie, the Nemeobiid branch. lid 

 is the Hespend main branch; lie the Lycsenid specialized branch ; Ilf is the Hes- 

 perid generalized branch. The pattern of lid, et seq., differs from the Pieri-Nym- 

 phalid branches by the simpler, more equidistant vemmg. The specialization, in 

 the first direction, displays itself here by the disintegration of the cross-vein without 

 a shifting of the outer branches, which latter remain in situ. 



NOTES ON THE LARVA OF LAGOA PYXIDIFERA. 



By Harrison G. Dyar. 



Since Abbot & Smith's work, in 1797, there has been no original 

 reference to the larva in literature. It may be fitting that the one-hun- 

 dredth anniversary of the discovery of the larva should be celebrated 

 by a brief redescription, especially as Abbot & Smith's figure is some- 

 what erroneous and misleading. Their figure gives the impression of a 

 longitudinally banded larva, whereas it is really uniformly colored. 

 The larvae occurred to me in some numbers at Miami, Florida. 



Feet and warts, as usual in the genus, distinct; head retracted. 

 Body slate gray ; hair dense, concealing everything, regularly directed 

 backward, soft, smooth, pale whitish gray with an under tint of darker 

 gray which predominates narrowly along the subventral edge and in a 

 disheveled anterior tuft above the hood. Dorsal line slightly keeled ; 

 anal hair short ; no tufts. Anal plate reddish. In the earlier stages the 

 hair is thin and fluffy, white; but the body shows through sordid whit- 

 ish with a brownish dorsal band divided by a pale line and a broad 

 brown lateral band. The spiracular glands show white. Edge of cer- 

 vical shield and anal plate orange tinted. Cocoon and pupa as in Z. 

 crispata. Feeds on the young shoots of live oak. The larva differs 

 from that of L. crispata only in color. 



