HYMENOPTERA. 



67 



4. Methoca Canadensis. 



Male. Length 4i lines.— Black and shining, slightly villose, 

 the face closelv punctured, the vertex sparingly so ; the anterior 

 margin of the clypeus produced into an elevated tubercle, the 

 tips of the mandibles ferruginous. Thorax coarsely punctured, 

 the metathorax coarsely rugose ; having above a central channel 

 which is transversely ridged; behind, truncate, the truncation 

 obliquely rugose-striate on each side, having a slight central 

 channel ; the legs have the apical joints of the tarsi obscurely 

 rufo-piceous, the calcaria ferrugmous; wings hyaline, faintly 

 coloured. Abdomen : the basal half of the first segment rugose, 

 the lateral margins elevated and acute ; beyond this, the entire 

 abdomen is rather finely and distantly punctured, the base of the 

 segments depressed, their margins constricted. 



Hab. Canada, (Coll. F. Smith.) 



Genus 6. SCLERODERMA. 



Sclerodermus, Lafr. Gen. Crust, et Ins. iv. 119. 

 Scleroderma, Westw. Trans. Ent. Soc.Lond. ii. 164. 



1. Scleroderma domestica. 



Scleroderma domestica {Klug, MSS.), Westw. Trans. Ent. Soc. 



Lond. ii. 167. 1 ? . 

 Hab. Berlin; Albania. 



2. Scleroderma thoracica. 



Scleroderma thoracica, Westw. Trans. Ent. Soc. Lond. ii.l67. 2 ? . 

 Hab. North America. 



3. Scleroderma abdominalis. 



Scleroderma abdominalis, Westw. Trans. Ent. Soc. Lond. ii. 167. 



3?. 

 Hab. Marseilles. 



4. Scleroderma nitida. 



Scleroderma nitida, Westw. Trans. Ent. Soc. Lond. ii. 167. 4 ? . 

 Hab. South of France. 



5. Scleroderma unicolor. 



Scleroderma unicolor, Westw. Trans. Ent. Soc. Lond. ii. 167. 5 ? . 

 Hab. Berlin. 



