308 THE ENTOMOLOGIST. 



The preceding remarks will render the following table of 

 groups more clear. As before, species not yet found in 

 Britain are printed in Italics. 



A 1. Elytra with an internal subhumeral stria. 4-raaculatus. 

 A 2. Elytra with an abbreviated internal stria, furnished ex- 

 teriorly with an appendage forming part of an ex- 

 ternal stria unicolor. 



A 3. Elytra with an external subhumeral stria. 

 B I. Thorax with two lateral striae. 



cadaverinus ; succicola; merdarius. 

 B 2. Thorax with one lateral stria. 

 C 1. Subhumeral stria entire. 



D 1. Anterior tibia? 4-dentate Jimetarius. 



D 2. Anterior tibiie 5-dentate. 



igiiohilis ; carbonarius ; ventralls ; purpurascens. 

 D 3, Anterior tibia? 6-dentate. 



marginatus ; neglectus ; nigellatus. 

 C 2. Subhumeral stria abbreviated at both ends. 



stercorarius. 

 A 4. Elytra with no subhumeral stria. 

 B 1. Thorax with two striae. 



uncinatus ; 4-notatus; bissexstrialus. 

 B 2. Thorax with one stria only. 



bimaculatus ; 12-striatus; corvinus. 



1. H. i-jjiaculatiis, L., Mars. 204. — Black; elytra with a 

 more or less apparent large lunate red spot, often separated 

 into two ; elytra with three dorsal striae ; anterior tibiae 

 3- dentate ; propygidium smooth in the middle. 4 — 5 lines. 

 Distributed throughout Europe. 



2. H. unicolor, L., Mars. 261. — Thorax with two abbre- 

 viated striae ; elytra with three dorsal striae entire ; anterior 

 tibiae 3-dentate ; prosternum at the apex acuminate, entire. 

 3|- — 4 lines. Also common throughout Europe, and N. Africa. 



3. H. cadaverinus, E. H. (1803), Mars. 291.— Elytra with 

 four dorsal striae entire ; tibiae 5-6-denlate ; prosternum at 

 the apex truncate or slightly eniarginate. 3 — 4 lines. Eu- 

 rope and Asia. 



4. H. succicola, Th. iv. 224 (1862). — Closely resembling 

 H. cadaveiinus, but smaller, with the frontal impression 



