AMERICAN LEPIDOPTERA. 89 



Descriptions of North American 5TOCTUIDAE, No. 3. 



BY AUG. R. GROTE. 



HARASMALVS, Grote. 



Tn this genus, which is related to Eurhipia and Ripogenus, the 

 body parts are rather square and compact. Head concealed from 

 above. Antennae short, shortly bipectinate from the base outwardly. 

 Labial palpi a little dependant, projected straightly forwards, closely 

 scaled. Caputal scales massed on each side of the vertex, towards 

 antennal base. Thorax with an anterior dorsal tuft, and a double 

 crest behind. Tegulae with raised scales. Abdomen recurved at tip, 

 compact, hardly exceeding the hind wings; anal segment trigouately 

 tufted j two pre-anal dorsal segmentary crests. Legs short; spurs 

 feeble. Wings at rest folded on themselves, ample, elongated, entire. 

 Forewings with straight costal edge ; hind margin roundedly oblique, 

 a little exerted at median nervules. A pliant very evident median 

 fold. (The neurational features cannot be examined at present from 

 paucity of specimens.) 



The singular species has the habit of folding the wings when at 

 rest in such a manner as to conceal their true size. 



Marasmalns ventilator, Grote.— % .—Forewings pale dull olivaceous 

 ochrey, washed with whitish, with narrow white lines and blackish and ferru- 

 ginous blotches. Double basal arcuate white lines with blackish included 

 space most deeply marked on costa. The wing is whitish before the faint dark 

 arcuate median shade. Orbicular obsolete. Reniform, a white diffuse lunule 

 with superposed included black dots connected by an arcuate line; above re- 

 niform a blackish costal shade which is apparently margined on either side by 

 the t. p. line, composed of two widely separate narrow indistinct white lines. 

 Beyond the reniform superiorly a bright ferruginous patch, and the costal 

 region is ante-apically ferruginous with three white dots. Subterminal line 

 faint, irregular, whitish, preceded on the fold by two blackish blotches. Ter- 

 minal line black, fading inferiorly; fringes white, black dotted, blackish at 

 apices and again medially. Hind wings pale blackish, with an irregular clear 

 subterminal shade, a ferruginous patch at about the middle of the external 

 margin and a blackish shade at anal angle; a black terminal interrupted line ; 

 fringes whitish. Beneath with obliterate markings, washed with whitish grey ; 

 primaries with the ante apical costal ferruginous shade; secondaries with black- 



TRANS. AMER. ENT. SOC. IV. (12) SEPTEMBER, 1872. 



