58 TIIOS. L. CASKY. 



EXPLANATION OF THE PLATE. 



Fig. 1. Anterior portion of the head in Harpalus convictor. 



Fig. 2. The aame in //. riridldiiens. 



Fig. 3. Tlie same in II. cjiuonicus. 



Fig. 4. The same in H, lustralis. 



Fig. 5. The same in H. lenescens. 



Fig. 6. Structure of the raesosternum between the coxae in Tithams. 



Fig. 7. Antenna of Titlianis. 



Fig. 8. Structure of the mesosternura between the coxae in Aleochara. 



Fig. 9. The same in Emplenota. 



Fig. 10. Conformation of thg mesosternal and metasternal episterna and 

 the mesosternal epimeron in Tijloderma ni(jrum. 



Fig. 11. The same in T. wreiim. 



Fig. 12. The same in T. baridlum. 



