144 



form shows that the tegument extends much beyond the costal 

 vein at the shoulder of the wing; the costa is a little depressed 

 at the middle. The cell is closed ; vein nine, a short furcation 

 out of eight. On the secondaries the cell is also closed and di- 

 vided centrally by a vein. There is a long, narrow auxiliary cell 

 in the forewings, from the apex of which ten is thrown off to 

 costa, and a little beyond this, towards the base of the wing, vein 

 eleven is thrown off from its upper edge to costa. A second 

 smaller cell is formed above the sub-costal vein, stretching to base 

 of wing, by a cross-vein from vein twelve. The neuration is not 

 very different from Dasyfidonia, and assists our classification 

 of this interesting moth among the FidonincE. The moth is 

 always remarkable from the unusually long, cylindrical, closely 

 scaled labial palpi, no less than for what seems an instance of 

 dimorphism in the female sex. 



SOME ADDITIONAL NOTES ON ADELOCEPHALA 

 BICOLOR. HARRIS. WITH DESCRIPTION OF A 

 NEW VARIETY. 



By H. S. Jewett, M. D., Dayton, Ohio. 



ADELOCEPHALA BICOLOR. Harris. 



Var. IMMACULATA. n. van 



Size and shape same as A. bicolor. Color, ochre yellow. In 

 typical <^/c^/(9r the upper surface of the primaries and lower sur- 

 face of secondaries are sprinkled with small black dots. In this 

 variety these dots are entirely zvanting. 



The oblique line and discal spot of primaries are marked, more 

 or less strongly, by pale red. The red of the upper surface of 

 secondaries and under surface of primaries is much paler than in 

 the typical insect, and covers only the anterior two-thirds of 

 upper surface of secondaries, the posterior one third being pale 

 ochre-yellow. 



Thorax and abdomen are pale ochre-yellow above, inclining 

 to brown beneath. 



About one per cent, of each brood are of this variety. 



In my description of the larva of A. bicolor which appeared 

 in the March number of this journal, I stated that I had never 

 found the " silver horns " on any other segments than the fifth, 

 seventh, ninth and tenth. I have now to add that this year I 

 reared three larvae having these silver horns on every seg- 

 ment except the twelfth ; still, the imagines from these three 

 larvae did not differ from the ordinary form. 



The moths vary very much in color and amount of orna- 

 mentation. Thus the ground color varies from pale ochre-yellow 

 through yellow-brown to reddish purple and purple-brown ; or 



