66 Mr. Westwood on Singonium quadricorne^ Sfc. 



De OcELLlS CoLKOrXEOUUM. 



CI. Dom. Germar docet ocellos adesse in genere Omalii, 

 (Germar Mag. der Ent. 4. p. 410). Quod insolitum sane et inex- 

 spectatum in Coleopterorum Ordine — Staphylinos inde ego quoque 

 examinavi. In Speciebus Anthophagi generis, Ocelli duo facile 

 detengendi, versus medium capitis posterioris ad finem sulcorum, 

 qui inter Oculos siti sunt. Etsunt et in A. Caraboide et in A. 

 plagiato ; etsi de hoc generi negare videtur CI. German. In 

 Omaliisque siti sunt in codem loco, quo in Anthophagis ; in Om. 

 tecto, aliisque vero pauUo posterius, in sulco capitis transverse. 

 Observavi in Om. assimili, tecto, Ranunculi, rivulari, opthalmico, 

 caeso, pusillo, deplanato, Viburiii, crenato ; in Speciebus obscuris 

 facilius, in pallidis diflicilius, detegendos. In Om. brachyptero 

 quoque adesse videntur etsi obsoletiorcs — Novem ideo offerunt 

 Characterem, quo distinguuntur Catheretes et Omalium. Ob 

 affinitatem Oxyteli cum Omalio ocellos etiam in illo adesse suspi- 

 catus sum, sed frustra qua;sivi. 



De prima observatione ocellorum in Coleopteris, cum Cl. Ger- 

 maro ujihi nullum est certamen ; dicere tamen licet jam olim 

 ocellos quosdam me observasse in Pauso bucephalo, eosque sate 

 accurate depinxisse in Appendice ad Schoenheri Syn. lus. 3. 

 Tab. 6. 2. c, etsi Cl. Gyllenhall speciem describens, non ocellos, 

 sed tubercula verticalia mamillata, dixerit. 



NOTE 1. 



Since the greater portion of the above paper was written, the 3d & 

 4th Vol. of Kirby's & Spence's Introduction to Entomology, have at 

 length been published. In the 4th Vol. p. 393, a plan of division of 

 an order is given on a much enlarged scale. Whether too many divi- 

 sions arc not there introduced I do not pretend to say. I have not 

 adopted them here from ray ignorance of tlie corresponding groups in 

 the Brachefi/tra. 



NOTE 2. 

 It is not a little interesting to observe that these remarks concerning 

 the developeraent of tlie horns in some specimens (written long before 

 the publication of the two lastvoIiiraL'sofKirby&Speiice) perfectly coin- 

 cide with the observations in Vol. iv. p. 16fi of that work respecting auo- 



