162 



Acerra n. g. 



t, . — Related to Plusia, the squamation entirely hairy. The colors are those of 

 Lygranthoecia a.nd Plagiomimicus. Eyes hairy. Front full, with the vestiture 

 converging from the sides but without depression as in Plagiomimicus, Stihad- 

 ium or Stiria. Antennae with stout though not lengthy pectinations. Be- 

 tween the antennae the vestiture is somewhat pointedly massed. Tibiae ap- 

 parently unarmed. Palpi short with the 3d joint concealed. The tibiae and 

 femora are fringed with loose hair. The thorax and abdomen are proportion- 

 ate, untufted. 



Acerra normalis Orote. 



3 . — Color of Lygranthoecia Thoreaui. Pearly gray. The ordinary ornamen- 

 tation of the fore wings is replaced by an irregularly quadrate white line, open 

 to the costa and complete on the other three sides, commencing at about the 

 position of the t. a. line, extending along the middle of the wing below the 

 median vein and running outwardly and more straightly upwardly to vein 8 at 

 the end of the discal cell, and diffusely outwardly shaded on all three sides with 

 deep black. Faint traces of an even transverse line over the nervules beyond 

 this mark, apparently occupying the position of the t. p. line. On the subcostal 

 vein, within the discal mark, there is a central black dot, V-shaped, edged with 

 pale scales. A terminal series of black dots. Hind wings concolorous, pale 

 fuscous. Beneath grayish, irrorate with dark scales with black discal marks 

 and a common even transverse line. Body parts concolorous with wings. 



Expanse, 35 m. m. California, Mr. Behrens, No. 61/62. The 

 genus may follow Plagmnimicus on page 33 of my List of the 

 Noctuidae of North America. 



Taraclie terminimaculata Grote, Bui. B. S. N. S. Vol. 1, p. 153. 



5 . — I regard the following as the female of T. terminimaculata, with hesi- 

 tation. The specimens agree with my male type in almost every particular 

 except that in my two ? specimens the white even curved line which, in ter- 

 minimaculata $ runs from the anteapical oblique white costal streak to the 

 internal margin and regularly encloses the brown shading of the wing, here 

 only goes to the median vein and forms a sharper C-shaped curve. An analo- 

 gous sexual difference is apparently not yet recorded in this group. In the 

 female specimens the oblique t. a. line is also distinct and followed by a black 

 shade. The two forms agree in all else, while the outer white dentate curved 

 streak before the internal angle is more vivid in the female and preceded by a 

 similar orange shade, intersecting the dark field between the two white curved 

 streaks. The general color is the same and the disposition of the terminal 

 black dots and the black rivulous portion of the t. p. line opposite the cell 

 correspond in the two forms. The hind wings are darker in the S specimens, 

 but this is not an unusual sexual character ; the median space on the primaries 

 is also darker shaded in these specimens. I am indebted to Mr. J. A. Lintner 

 and Prof. Packard for $ specimens taken in New York and Massachusetts and 

 for which, should my present determination be wrong, I propose the name 

 pulchella. 



