LEPIDOPTERA HETEROCERA. 327 



Legs rather short, slightly pilose ; hind tibiae not dilated, with 

 moderately long spurs. Wings ample, clouded, denticulate. Fore 

 wings somewhat rounded at the tips ; exterior border slightly con- 

 vex and moderately oblique. Hind wings more dentate than the 

 fore wings. 



Europe. Siberia. 



1. SVNOPSIA BITUMINARIA. 



Fuliginoso-nigricans ; abdomen punctis dorsalibus nigris bivittatum, 

 fascia basali pallida ; alee lituris fere occultis, lineis interiore 

 et exterior e infuscatis subparallelis. 



Synopsia bituminaria, Lederer, Lepid. Sibir. 28, pi. 6, f. 1. Guen. 

 Phal.i. 226,337. 



Altai. 



2. Synopsia amygdalaria. 



Albido-cinerascens ; alee subdentatce, ex parte nigricante-cinereo 

 nebuloscE^ lineis duabus subundulatis nigricantibus ; anticee 

 lituris costalibus nigris, linea exteriore subduplicata angulo 

 acuto. 



Boarmia amygdalaria, Herr.-Sch. Eur. Schm. iii. 82, 217, pi. 70, 



f. 432. 

 Synopsia amygdalaria, Guen. PhaL i. 226, 338. 



Isle of Crete. 



3. Synopsia sociaria. 



Cinerea, nigro conspersa ; alee lunulis marginalibus nigris ; anticce 

 lineis interiore et exteriore undulatis denticulatis, hac costam 

 versus Jlexa ; posticce linea interiore obsoleta. 



Geometra sociaria, H'ubn. Geom. pi. 29, f. 155 ; pi. 82, 424. 

 Synopsia sociaria, Hubn. Verz. Schm. 317, 3065. Guen. PhaL i. 



227, 340. 

 Boarmia sociaria, Treit. Schm. vi. 1, 215, 11. Dup. Lep. iv. 332, 



pi. 157, f. 1; pi. 159, f. 6. Frey. Neu. Beitr. iv. pi. 348. 



Boisd. Ind. 197, 1563. Herr.-Sch. Eur. Schm. iii. 78, 199. 



a, b. Europe. From. M. Becker's collection. 



F 2 



