THE CANADIAN ENTOMOLOGIST. 41 



nearly straight. The orbicular and claviform are indistinctly defined in 

 dark purpHsh, sometimes partly outlined -with bluish-white atoms. The 

 reniform indistinct, the central lunulate line strongest and shown in 

 yellow. Or the stigmata may be wholly pure white, but gradations between 

 the two have not been seen. The hind wings are smoky-brown, paler in 

 some specimens and usually show a medial sha,ding. Beneath the medial 

 lines aie stronger, on a lighter, more luteous ground. Fringes slightly 

 dentate. The male genitalia agree with the common type, does not differ 

 to a noticeable degree from harrisii, or, for that matter, from arctivorens, 

 iiebris and others. Expanse, 38-42 mm. 



Habitat.— Buffalo, N. Y. 



A series of thirty-two specimens have been examined, and a cotype 

 is in Mr. Moeser's collection. Rubigiiiosa differ from aberration No. i of 

 Hampson in general ground colour and in the definition of the postmedial 

 line, which in the latter are counterparts of the typical specific maculation. 

 Types of both forms are with the author. 



The larva in penultimate stage is similar to hafrisii, and is hard to 

 differentiate by any character of notice. Head is a little larger, and the 

 lines appear better defined, the dorsal alone being continuous. Tubercles 

 norma!, brownish-black, rather small. An accessory IVa, which is very 

 small, occurs on joint ten, shields and leg-plates normal. Larvse are thus 

 far advanced about July 20. 



At -maturity the colour is a whitish translucence, the tubercles 

 become blacker and larger, which is an unusual feature. On joint ten IVa 

 becomes as large as IV on the preceding joint, and occupies a correspond- 

 ing position. Some variation may exist in this, however. The set?e seem 

 especially well developed, even those ventrally situated on the small 

 tubercles on joints 4 and 5, that apparently merge into the leg-plates on 

 the succeeding four joints, are easily discerned. Length, 42-44 mm. 

 July 30 finds most larvse full-fed and the borings deserted. The pupa is 

 entirely normal. Emergence ranges from Aug. i 7 to Sept. 9. 



By far the finest disclosure for 19 10 was the apprehension of a 

 beautiful, distinct and unknown species at Buffalo by Mr. F. E. M(je^er. 

 This new departure had escaped him by a narrow margin the previous 

 season, but by persistent effort and an early beginning he was able to 

 round up a species well worth the pains. As with other similar surprises 

 in this genus, one wonders how such a thing has escaped notice so long. 

 Its beautiful tints, comparable to a cross between a high-coloured 



