336 Prof. J. C. Schiodtc on the Classification 



2. Prosterni processus posticus in mucronem saltatorium sensim trans- 

 iens. Elytra costa laterali manifesta. 



A. Epipleuraj elytrorum pone coxas posticas evanidae. 



a. Sulci antcnnarii prothoracis nulli. 



a. Frons deflexa. Coxae posticsc lamina femorali ampla. 



6. Meyapenthes, Kiesenw. 

 (JE. tibialis, Boisd., r.) 



/3. Frons laminata. 



* Coxae posticaj lamina femorali angusta, sensim acuminata. 



7. Pheletes, Kiesenw. 

 {E. Bructeri, Fabr., r.) 



** Coxa) posticae lamina femorali ampla, abruptc acuminata. 



8. Hypolithus, Stepli. 

 (E. ripariiis, Fabr., m. fr.) 



b. Sulci antcnnarii prothoracis brevissimi. Frons laminata. 



9. Limonius, Eschltz. 



{I.E. minutns, L., fr. ; 2. E. niyripes, Gyll., m. fr. ; 3. E. cylin- 

 dricus, Paylc., fr.) 



B. Epi})lcur8e elytrorum manifcstae. Sulci antcnnarii prothoracis nulli 



vel levissimi. Frons descendens. 



10. Diacanthus, Latr. 



(I. E. tessellatus, L., fr.^ ; 2. E. bipustulains, L., m. fr. ; 3. E. 



two first-n.^lned species is uncertain. E. cardinalis was first discovered by 

 Prof. Schiodtc in Italy, but occurs also in Denmark. E. dibaphus S has 

 the third joint of the antennae tri.ingular. The four red s])ccies arc dis- 

 tinguished princii)ally by the proportions of length between pronotum, 

 elytra, and antenn;c. The elytra are in E. sanguineus twice and a half 

 as long as the pronotum, in E. cardinalis rather less; in E. dibaphus 

 the proportion is twice and three quarters, and m E. coccineus about three 

 times. The antennae are always about one-sixth shorter in the $ than in 

 the <? ; in E. sanguineus $ they equal the pronotum to the point of the 

 hind corners ; in E. dibaphus 3 and E. coccineus S they exceed this mea- 

 sure not a little ; but in E. cardinalis <? they are not longer than the pro- 

 notum measiurcd along the middle line ; in E. cardinalis the pronotum 

 equals in length its own width measured over the hind corners, whilst it is 

 shorter in the three other species, from whichJB. cardinalisis also distinguished 

 by the ])unctures being much coarser on the head and pronotum, which are 

 quite dull, and by the sides of the body being parallel in the middle. The 

 transversal dip at the base of the pronotum is very marked in all these species 

 except E. coccineus, where it is strikingly fiat and shiny ; but the extent 

 and depth of the middle groove varies in all four species. Nor is the co- 

 lour of the hairs of any value for the distinction of these difficult species. 

 The antennae are black in E. sanguineus and E. dibaphus, brown in E. 

 cardinalis, and light brown in E. coccineus. 



^ Liune's E. tessellatus (Fauna Succ. I'i^) has, since the time of Olivier, 



