1864.] 337 



than the body, twice as long as broad. Costa rounded towards the 

 apex ; outer margin rounded, longer than the inner edge of the wing. 

 In 9 the costa is more rounded at the apex. Secondaries suborbicular, 

 reaching to the tip of the abdomen. Legs large and stout, densely 

 pilose. Abdomen short, but little longer than the head and abdomen 

 together, the tip broadly tufted. 



Euclea Monitor, n. sp. 



Lhnacodes cippus Harris, Rt. Ins. Mass. p. 30.3. (1841). 



Third edit. fig. 207. (1862). 

 Euclea cippus Walk., Cat. Lep. Br. Mus. V. (1855). 

 Limacodes cippus Morris, Synopsis Lep. N. Ainer. p. 126. (1862). 



% . Cinnamon brown. Antennae pale. Costa of primaries straight, 

 apex abruptly rounded ; outer margin above nearly straight, below 

 somewhat oblique and rounded at the internal angle. Upon and be- 

 hind the median nervure are two confluent green spots margined with 

 a row of white and brown scales. Between them is a large sinus filled 

 in with rust red. These two spots are contiguous to three subapical 

 spots, of which the middle one is triangular and largest, beyond it is a 

 rather narrow rust red discoloration. Discal dot very distinct, ovate, 

 brown. A submarginal obscure violet transverse band curves from the 

 basal spot around on to the costa. Fringe darker between the ends of 

 the nervules, interlineated with testaceous. Secondaries lighter, fringe 

 pale. Beneath much paler. 



5 . Wings more pointed at the apex than in % . Outer margin 

 oblique. The spots are confluent forming a much broader fascia than % . 



Length of body, % , .45. 9 , .42; exp. wings % .95, 9 I.IO inch. 



" Cambr., June 15, Aug. 5" (Harris). Bo.ston (Sanborn, Shurtleff ). 



We here named this species from the striking resemblance of the 

 larva to the iron-clad war steamer " Monitor." Its form is very regu- 

 larly elliptical, flattened from above, and the conspicuous brown spot 

 represents very exactly the form and position of the '' cheese box" or 

 turret. Add to this its armor of large rough spines, and its fierce brist- 

 ling aspect must be sufficiently alarming to its more lightly clad ene- 

 mies. I have seen a drawing of the supposed larva of this species in 

 the Cambridge Museum. 



Cramer's Cippus probably belongs to a different genus from Euclea 

 by its more elongated primaries, convex costa and slenderer body, longer 



