(Page 18) 



18. The three transversally jjrooved dorsal joints of abdomen with simj)le 



or sparse punctation back of grooves. Pronotum rather finely 



punctated. L. 4-4. 5mm 14. A. moerens iyllh. 



The transversally grooved dorsal joints of abdomen with rather dense 

 and smooth punctation back of grooves. Pronotum finely punctated. 

 Species broader. L. 4-5 mm 15. A. mycetophaga Kr. 



19. Elytra entirely black. L. 3-4 mm 18. A. billineata Jyllh. 



Elytra black, each with a reddish-yellow spot posteriorly 80. 



20. Elytral spot rather sharply bounded. L. 2.5-3.5 mm.: 19. A. nltida ^ravh. 

 - Elytral spot more or less extensive, not sharply bounded. L. 2-3.5 



mm 20. A. verna Say. 



21. Antennae longer than head and pronotum together, slender 22. 



Antennae shorter than head and pronotum together; surface of forebody 



shagreened aensely, feebly glistening or dull. (Species live on 

 the strand): 5. subgenus Polystoma Steph. (=genu£ Poly stoma Thoms. 

 and Muls. ) 23. 



22. Abdominal dorsal joints in the c^without sex-characters; hind-tarsi 



particularly long, et least as long as tibiae: 3. subgenus Bheo- 

 chara (=rgenu6 Pheochara Muls.). L. 4-5.5 mm.: 21. A. spadicea Er. 

 Abdominal first free dorsal joint in the o with a tooth, the second 

 most often with a granule at middle. Abdomen strongly glistening; 

 4. subgenus Ceranota Steph. (s=-jenu8 Ceranota Mul s. ) . L. 5-7 mm. 

 22. A. ruficornis ir avh. 



23. Forebody entlr-.ly dull 24. 



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