THE CANADIAN ENTOMOLOGIST. 221 



NOTES ON THE EARLY STAGES OF CATOCAL^. 



BY G. M. AND E. A. DODGE, LOUISIANA, MO. 



Catocala Clintonii. 



Egg, deposited June 21st, 1900, is a disc concave below and convex 

 above. The ornamentation consists of a series of ridges converging from 

 the slightly upcurved edge to a central depression which has in its centre 

 a slight tubercle. Colour dark, or blackish. Hatched April 17, 1901. 



Larva* escaped by cutting a hole at one side of the centre above. 



Newly-hatched larvae slender, nearly ^ inch in length, dark pruinose. 

 Head paler, no marks apparent. 



After first moult they are somewhat lighter in colour. The two rows 

 of dorsal tubercles appear as black dots. The head is light, the lobes 

 surmounted with black. 



On the tenth day one larva was one-half inch in length, blackish, but 

 paler than at first. Gray sagittate spots along the dorsum indicated the 

 dorsal stripe. Tubercles small and black. Posterior dorsal part of Sth 

 segment black, and dorsal tubercles on anal segments surrounded by 

 black patches. 



Head about same colour as body. Three days later this larva 

 measured seven-tenths inch in length. The colour had become gray 

 tinged with red. The usual longitudinal stripes were obsolete, but the 

 darker patches following each of the dorsal tubercles gave the effect 

 of indistinct interrupted subdorsal stripes. 



Head quite small, slightly darker than the body, mouth-parts white. 

 A triangular dark patch, apex downward, near summit of each lobe in 

 front. 



There were numerous light-coloured filaments. The most distinctive 

 feature was the black band of eighth segment enclosing, centrally, a quite 

 prominent, thick, rounded tubercle or horn, the tip of which was pale 

 gray. 



Tenth segment raised posteriority and marked by two black dashes 

 nearly meeting across the dorsum. 



The eleventh segment was also elevated in same way, the posterior 

 part being marked by a much curved black line bounding the raised 

 portion posteriorly. 



Head bordered behind with brown. 



May 1 st, newly moulted. Light gray, the dark patches of the dorsal 

 tubercles having disappeared. 



