THE CANADIAN ENTOMOLOGIST 10 1 



NEW SPECIES OF LEPIDOPTERA. 



BY J. MCDUNNOUGH. 

 Entomological Branch, Dept. of Agriculture, Ottawa, Ont. 



NoCTUID.t. 



Agrotinae. 

 Euxoa scholastica, sp. nov. 



Male antennae shortly serrate and fasciculate. Palpi, head, thorax and 

 primaries brown, more or less suffused with pale ochreous, especially the palpi, 

 head, bases of tegula? and patagiaand basal portion of primaries: a partial black 

 line across the front and a better defined one crossing the middle section of the 

 collar. Maculation of primaries very similar to that of messoria Harr. but 

 better defined ; basal and t. a. lines black, geminate, filled with ochreous, the 

 latter upright, consisting of five scallops: orbicular an even, small oval, out- 

 lined with black and filled with ochreous: reniform edged with pale ochreous, 

 especially prominent on outer margin, and filled with a shade corresponding 

 to general colour of wing; median shade fairly distinct, bent outward alqng 

 lower edge of reniform and then parallel to t. p. line; t. p. line dentate, geminate, 

 black, inner line most prominent, ochreous filled, scarcely bent in below cell ; 

 s. t. line irregular, pale, defined inwardly by dark shades; a broken dark terminal 

 border. Secondaries in both sexes smoky brown, slightly paler in basal half with 

 distinct discal dot. Beneath primaries smoky, paler ochreous along costal and 

 inner margins, with traces of postmedian line, well marked on costa, and a small 

 discal dot; fringes concolorous; secondaries whitish, sprinkled with smoky 

 along costa with broad bent postmedian line and dark discal dot, fringes pale, 

 terminal broken dark line on both wings. Expanse 35 mm, 



Holotype — 1 cT, Meach Lake, Que., July 24, (C. H. Young) in National 

 Collection, Ottawa. 



Allotype— 1 9, Ottawa, Ont., Aug., 1904, (A. Gibson) in National Col- 

 lection. Ottawa. 



Paratype — ^1 cT, Trenton, Ont., July 25, (J. D. Ev^ans) in National Col- 

 lection, Ottawa. 



The species has been generally confused with messoria but may be most 

 readily separated by the darker colour of the secondaries and the evenly ov^al, 

 pale filled orbicular. The & genitalia of the two species, of which figures are 

 given, are closely related; in messoria however there is a certain amount ot 

 asymmetry between the bifid harpes, the outer branch of the left side being 

 distinctly shorter and chunkier than the corresponding one on the right side; 

 in the new species these are longer and subequal. The inner branch of the 

 harpe in messoria is smooth with a few stray bristles whilst in scholastica the 

 distal half is thickly covered with a clothing of fine short hairs. The most 

 marked difference is in the aedoeagus as may be seen by a reference to the 

 figures. The species appears to be widespread in the east but rather rare; 

 specimens from New Brighton, Pa., are in the Barnes Collection and were 



Contribution from the Entomological Branch, Dept. of Agriculture, Ottawa, Ont. 

 June. 1920 



