144 



Forty-ninth Report on the State Museum 



yellow spots; a tubercle in the sublateral line with two setae, and one below 

 on each abdominal segment with a single seta. 



Under surface of the body a little lighter than upper ; a single trans- 

 verse white line on first and second abdominal segments; a median pair 



of small black tubercles on each 

 body segment; and also a more 

 lateral larger pair with three 

 setae each on abdominal segments 

 one to seven; on leg-bearing seg- 

 ments these tubercles occur at 

 the base of the legs on the inner 

 and outer sides; setae and tuber- 

 cles modified by reduction on last 

 Fig. 4. -Head, thoracic, and first abdominal seg- three Segments. True legs pitchy 



ments of full-grown larva of Mecvna reversalis; q bf J 



greatly enlarged. (Original.) blaCK, rmged With whltC at the 



joints. Prolegs, five pairs, of the same general color, but slightly 



paler. 



Fu^a. — Length 0.5 in.; transverse diameter 0.12 in. Rather 

 stout, light brown in color, eyes well marked ; six abdominal 

 segments exposed beyond the tips of the wing covers. Spira- 

 cles brown, prominent ; anterior two pairs within prominent 

 ridges. Cremaster pointed, apex blunt and usually with six 

 long curving spines arranged in lateral groups of three 



(Fig. 5)- 



Cocoon. — White, thin, and roomy. The pupa may readily 

 be seen through its gauzy tissue. 



The perfect insect is a pretty Pyralid with a spread of wing of from one 



inch to one inch and one-fourth (Fig. 6). It may be recognized by its 



rich reddish-brown fore wings with darker shades at the base, on the 



outer margin, and along the veins, together with 



bright reddish-yellow hind wings with a daiker 



apex. On the under surface, the apex of the fore 



wing and the fore margin of the hind wing is 



reddish-purple; there is also on the fore wing 



an irregular blackish spot at the tip of the 



discal cell and a small one near its center. 



The males are most easily recognized by their smaller size. 



Guenee has expressed his belief that M. reversalis may be identical 



with the dive?-salis of Duponchal, and has compared it in his description 



with that species. His description is as follows : 



Smaller. The front wings are narrower, a little less rounded at the 

 terminal border, of a lively but pale ferruginous-red, with the costal margin 

 more red, and the fringe slightly tinted with black. The posterior trans- 

 verse line is wholly punctiform in its entire length. The reniform spot is 

 blackish. The hind wings are pale yellow, unicolored, with a concolorous 



Fig. 5.— Cre 

 master of Me 



CYNA REVERS' 



ALis, enlarg- 

 ed. (Orig 

 inal.) 



Fig. 6. The Genista Moth, 

 Mecyna REVERSALIS. (Orig- 

 inal ) 



