MEGISCHYRUS. 49 



Megiscliyrus decempunctatus. 



Tschyrus lO-jniNcfatus, Guer. ll. Z. 1841, 15k 



, Lac. Erot. 99. 



Bolivia, Guarajos. 



Megiscliyrus semitinctus.* 



IscJfijrus semitinctus. Er. Arch. f. Nat. xiii. 180 (181:7). 

 Peru. 



Meg-iscliyrus KnochiL 



Tschyrus KiiocJiii, Lac. Erot. 100. 

 Bolivia. 



Megiscliyrus discipeimis. 



Ischi/ru8 dlscipennis, Lac. Erot. 101. 



Mey'ischyrus , Crotch., Cist. Eiit. Wo. 



Mexico, Nicaragua (Janson). 



Megischyrus sicarius. 



Tschyrus si car his, Lac. Erot. 101. 

 2)erizo)iatus, Lac. Erot. 103. 



Brazil (?), Columbia. 



The variety perhoiiatus has the thorax ferruginous with five 

 black spots; and I have a variety in which the thorax has a 

 central black vitta and a black dot on each side. 



Megischyrus zonalis. 



Tschyrus zonalis, Lac. LJrot. 102. 



Var. lineolatus: elytris plaga nigra lineola rubra continento. 



Bolivia, Giuirayos, Amazons (Bates). 



Megischyrus circumscriptus. 



Erotylus circumscriptus, Dup. Erot. 41. 



Tschyrus , Lac. Erot. 102, 



Brazil. 



This is possibly an opaque form of JA zonalis. 



Megischyrus lineatus. 



Tschyrus linccitus, Lac. Tyrol. 10 1. 



(jrarnrnistes, Lac. Erot. 101. 



Kio Janeiro, Goyaz. 



I cannot see that 2f. fjramrnisfcs differs essentially from M. 

 lineatus, no two specimens of the latter are precisely alike. 



C. II. 4 



