10 AUG. R. GROTE. 



resembles. Sub-reniform large, open, formed by a deep sinus of the t. p. line. 

 Hind wings bright yellow; hairs at the base and along internal margin more 

 yellow, less obscurely colored than in C. neogama. Median band as in C. neo- 

 gama, but less irregularly edged. Thorax pure grey; body parts paler than in 

 C. ueogama. Expanse 80 to 90 mm. 



Middle States. Rare. " Kanawha, 1867" £ Edwards' Collection. 



Differs from C. neogama, Guenee, by its slender body parts and 

 greater expanse. At first sight it resembles it closely, but the large 

 open sub-reniform, the paler hind wings, and the more acutely dentate 

 t. p. line are distinguishing characters. 



28. Catocala piatrix, Grote. 



Catocala piatrix, Grote, Proc. Ent. Soc. Phil. Vol. 3, p. 532 (1864). 



% J • — A. well sized species with slenderer body parts than C. neogama, but 

 stouter than the succeeding species, C. palaeogama, with which Mr. Walker has 

 confounded it. Very distinct in color and -appearance from its allies. An- 

 terior wings dark wood brown, or blackish brown, slightly silky, darker shaded 

 in the sub-basal space, on the costa above the discal cell, and obliquely sub- 

 apically on the terminal space. When fresh with powdery greenish scales 

 along the the veins. Lines black. Basal half-line with a single tooth, termin- 

 ating with an outward inclination. T. a. line geminate, with the outer line 

 sometimes less distinct, with an obsolete sub-ccstal tooth, irregularly undulate, 

 divaricate. A paler costal shade spreads obliquely from costa over the sub- 

 reniform. Reniform shaded with black, thrice excavated exteriorly, followed 

 by a blackish shade. Subreniform usually closed but connected with the t. p. 

 line, occasionally open, always paler and well defined. T. p. line black, dis- 

 tinct, without dilations, a prominent sinus on s. m. interspace; discal teeth 

 sub-equal and prominent. Subterminal line geminate, with a greyish center. 

 Hind wings deep yellow, internal margin and base clothed with long dark 

 brownish hair. Median band broad, not much constricted, tapering suddenly 

 to internal margin. Thorax concolorous with primaries ; tegulre bordered with 

 black lines; prothorax with a black line. Expanse 78 to 84 mm. 



Not rare throughout the Atlantic District. I have a specimen 

 from Southern Alabama. 



29. Catocala palaeogama, Guenee. 



Catocala palaeogama, Grote, Proc. Ent. Soc. Phil. Vol. 3, Plate 3, fig. 2 (1864). 



% 2- — Anterior wings grey, powdered with greenish grey and black scales 

 and shaded with blackish, and with bright brown on the subterminal space. 

 Ordinary lines black, rather broad and distinct. Reniform moderate, rounded, 

 indistinct, with a brownish center, sometimes entirely black. Sub-reniform 

 pale, small, independent or rarely connected with t. p. line. Sinus oft. p. line 

 on submedian space broadly marked, acute, not deep. Hind wings dark yellow. 

 Median band narrow, much constricted, tapering wavedly to internal margin. 

 Expanse 72 to 75 mm. 



Less common than the preceding species. Eastern and Middle 

 States. 



A well marked variety of this species is : 



