NO. 1140. NORTH AMERICAN XOCTUIDAE— SMITH AND DYAIi. 73 



mentation of pruni, but much obscured, are easily traceable. In male 

 genital structure this species is distinctly unique, and while it is 

 evidently a lobeliae derivative, becomes an easy intergrade to the 

 afflicta type. 



Of the European species known to me, 7>.s/, tridens, cuspis, strigosa, 

 and alni belong to this group. All of these save striyosa have been 

 already mentioned. Of these, the first mentioned three belong to that 

 small series of which JobHiae is typical. All have tlie <lagger opposite 

 the cell more or less obvious and crossing the transverse posterior line, 

 and all have the ordinary spots more or less distinctly tied by a black 

 line or dash. In all the basal dash or streak is distinct, and in all we 

 find well marked the spur from the inferior margin, wliich, in our own 

 species, is characteristic of the gri,sea series. The structure of the 

 male genitalia has been already referred to, and, altogether, while at 

 first sight there may seem a close resemblance between these Euro- 

 pean and some American forms, yet they are really quite remote from 

 each other. Variation has been much greater and specialization more 

 active in America; hence our species have diverged more and in a 

 greater number of directions. 



In its pattern of maculation (tint resembles siiperans and conuerta at 

 least as much as, if not more than, it does our funeralis. It has not 

 only the longitudinal shade of suprrans, but also the broad shade 

 bands extending from the costa behind the orbicular to meet it. So 

 the vestiture in alni is much more roughened than it is in the American 

 species, and in this particular it is also much closer to our connccta. 



Strigosa is the European representative of our connecta, but is smaller, 

 more slightly built, and more brightly colored. The male claspers are 

 those of connecta., but on a much smaller, more compact plan, and much 

 better adapted for a starting poiut to our groui) hamamelis or to the 

 group auricoma. 



ACRONYCTA INNOTATA Guen^e. 

 (Plates II, figs. 17, 18, adult; XVII, fig. 18, leg; XX, fig. 5, male genitalia.) 



Acromjcta innotata Guenee, Spec. Gen., Noot., 1852, I, p. 50. — Walkek, Cat. Brit. 



Mu8., Het.,1856, IX, p. 59. 

 Apat da innotata Grote, Papilio, 1883, III, p. 114. 

 Diphthera graefii Gkotk, Proc. Ent. Soc. Phila., 1863, II, p. 68, pi. iii, fig. 6.— 



MoRKisoN, Can, Ent., 1875, VII, p. 79, pr. syn. 



Ground color a somewhat dirty yellowish white. Head and thorax 

 without distinct markings, except a black line from the sides of the 

 pali)i to the base of the wings. Primaries with the ordinary lines 

 traceable, and a vaiiously distinct basal line, marked by a black spot 

 ou the costa. Transverse anterior line marked by a black s})ot on the 

 costa. Beyond that it is geminate, neither of the defining lines com 

 plete nor always well marked at the same i)oints. As a whole the line 

 is outwardly oblique and rather even. Sometimes it is reduced to the 



