MEMOIRS OF THE NATIONAL ACADEMY OF SCIENCES. 79 



A. doUii sp. nov. Another species in the Brookl3-n museum, from Mexico, is a little larger 

 than A. hogei; the body and wings are uniformly reddish brown as in An hota stigma, with a lilac 

 tinge, and with no stripes. The basal line is very indistinct; the extradiscal line regularly 

 curved and ending on the apex. The discal spot is minute, white. Beneath there is no discal 

 spot; there is a faint extradiscsil line common to both wings. It seems to have been undescribed. 



^^DKLOddPHCALA. ISIjVS Boisdnval. 



(Plate XXXIII, tig. 1, ^ and ?.) 



Adelocephala isitis Boisdcval, Annates Soc. Ent. Belgique, XV, \>. 9"J, \^~'2; Ivirbv, Syn. Cat. Lep. Het.. I, p. 742, 

 1892. 



Iiitago. — 1 <? , ? . This species has been found by Mr. Jacob Doll at Brownsville, Tex., and 

 identitietl by Doctor Dvar. It is so clo.sely allied to ^4. lilJgeL that that species will probably be 

 united with it, since the only important difference is the greater number of pairs of pectinations 

 to the male antenna. The male genital armature should l)e examined to test the specific distinct- 

 ness of A. Jidgt'i from this species. 



The front of the head in the 9 comes to a point, the front being decidedly triangular, nar- 

 rowing rapidly toward the labrum; in the male the front is wider at the labral region, and the 

 thickened projection of the clypeus is visible. 



Male antenna} with 21 pairs of pectinations, the simple tip consisting of about •!() joints, 

 while in four <J S of ^1. hog< i there are only 18 jiairs of pectinations, tlie tiliforni extremitv lieing 

 18-jointed. 



It is very near ^1. hijgei S in the shape and color of the head, thorax, and abdomen, in the 

 shape of the wings; the presence of two white discal spots, and the style of coloration, the chief 

 difference being the pearl-gray tint of the fore legs, and the duller ocherous ground color of the 

 wings. 



21ale. — Head and body ocherous, but not of so bright a tint as in .1. hogei. Fore wino-s of 

 the same shape, costa and outer edge the same, but the outer angle is more angular, less rounded, 

 than in ^1. hogei, while the ground color of the fore wings is more gray ocherous; the base of 

 the wings and their outer edge are washed with pearl gray rather than pink. The two cross lines 

 the .same in direction and widtli, but instead of being distinct and dark reddish as in ^4. hogei, 

 they are somewhat indistinct and inclined to be dark brown. The two separate white discal spots 

 of ^4. hogei are in ^4. isias represented bj' two much larger white spots which are verv nearlv 

 connected (at first sight they appear to be so); the larger spot is irregularly rhomboidal or 

 diamond-shaped, twice as long as wide, pointed at each end. and very slightly separated from the 

 one in front, which is about one-quarter as wide as the other, and pointed at the outer end. (In 

 four ^4. hijgei i . the two spots are small and usually separated. Imt in (nie exuni))l(> thev are 

 confluent.) 



Hind wings as in ^4. hiiyei, except that they are paler, duller in hue. l)ut the roseate patch 

 is the same. Beneath, body and wings of a decidedly dtiUer, more grayish hue than above, but 

 identical in tint with some of the ^4. Iwgei; the fore wings are the same as in the other species. 

 The large black round discal spot is centered with whitish or pearl -gray scales exactly as in .1. 

 hogei, the latter varying a little. The fore legs ditter fioin those of .1. hogei. which are pink, in 

 being gra3'ish pearl. 



All the slight difference from ,4. liikjei we hav(> pointed out we believe to be varietal, except 

 that of the antenna". Its specific distinction or id(>ntity may be settled hereafter l)v an exami- 

 nation of the genital armature. From BoisduvaTs description of his i the two white discal 

 "points" appear to be like those of ^4, hogei. 



Female. — The antennte are simple, with no vestiges of the male pectinations; slightlv ciliated 

 on the distal half. In markings and shape of the wings very difi'erent from the S ; fore wings 

 with no white di.stal spots, but instead is a large round dtisky brown spot, while the ground color 

 Vol. 9—05 6 



