PAMPIIILIDI; OLIGOKIA MACULATA. 1761 



fly ! One such instance is recorded in our text, after Zeller, with regard 

 to Euvanessa antiopa, and another case, wliore the caterpillar head re- 

 mained on the chrysalis, but from wliich the butterfly never emerged, is given 

 under Euphoeades troilus and figured on PI. 76, figs. 74 to 80. It is not 

 a little curious that several such chrysalids of the same species were ob- 

 tained by Dr. Thaxter and that Dr. Riley has found one of Iphiclides ajax. 

 Instances of imagos with larval head have now been found on four different 

 butterflies, not including those in which it reached only the chrysalis state. 

 The i)Ossibilities of monstrous development seem indeed capable of takin^ 

 still another direction ; for in one of the European moths, Melanippe mon- 

 tanata, a precocious caterpillar has been found which developed the pec- 

 tinated antennae and thoracic legs of the imago "without in any other wav 

 altering its appearance." A figure of this strange creature is given in 

 Science, ii : 55. 



OLiaORIA MACULATA.— The twin spot. 



Sesperia maculata Eihv., Proc. eut. soc. —French, Butt. east. U. S., 330 (1886). 



Philad., iv : 202, pi. 1, fig. 6, 2 figs. (IStio). Isoteinon maculata Hew., Cat. coll. Jiuni. 



Oligoria mactdata Scudd., Syst. rev. Amer- Lep., 229 (1879). 



butt., 61 (1ST2). Hesperia orthomenes Boisd., MS. 



Pam/i/i i7a m«C!(?ata Edw.. Cat. Lep. Amer., Figured hy Glover, III. N. A. Lep., pi. I, 



51 (1877) ;-Chapm., Can. ent., xi: 191 (1879) ; fig. 16, ined. 



Away from me, and only love 

 The butterflies, gay triflers, 

 Who in the sunlight sport — 

 Away from me and sorrow ! 



Heine.— ( Transl.) 



Imago (17 : G). Head covered above with closely intermingled, erect, pale fulvous 

 and black hairs and scales, the former slightly tinged with olivaceous, -beneath and 

 close around the eyes covered mostly with pale, often dingy, straw yellow scales. 

 Palpi having the basal joint covered with similar scales, the middle joint with 

 the same at base, but immediately beyond heavily interspersed with blackish fuli- 

 ginous scales, giving the palpus a very griseous appearance; the sides, especially in 

 front, have a few longer, or a little more erect, blackish bristles ; the protruded part 

 of the apical joint is uniform, blackish fuliginous, but toward the base is flecked with 

 some yellowish scales. Antennae blackish brown above, darkest on the club, faintly 

 and very narrowly interrupted at the base of each joint of the stalk with pale yellow- 

 ish, the interruption sometimes absent from tlie middle of the stalk, and generally 

 more distinct than elsewhere toward its extremity, beneath dingy buff, interrupted ex- 

 cepting on the club and toward the extremity of the stalk with blackish at the tips of 

 the joints ; the colors of the upper and lower surface meet on the sides in oblique lines, 

 so that the dark colors are broader at the tip, the pale at the base of the stalk joints; 

 the outer side of the club is black, interrupted distinctly with buff at the base of the 

 joints ; otherwise the colors are uniform, but the crook and the usual portion of the 

 club adjoining it is naked, fusoo-luteous. Tongue black, at tip castaneous or testa- 

 ceous. 



Thorax covered above with fuliginous scales and hairs, largely intermingled with 

 long, dull, olivaceo-tawuy hairs, which become more distinctly tawny on the patagia; 

 beneath with mingled pale, dull yellowish, fuliginous and a few blackish scales and 

 hairs: femora and tibiae dark brown, tlecked on the inner aud upper surface of both 



