66 Mr. Westwood on Siagonium quadricorne, SfC. 



De Ocellis Coleopteorum. 



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. Germar. In 

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

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

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

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

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

 quoque adesse videntur etsi obsoletiores — Novem ideo oflferunt 

 Ciiaracterem, quo distinguuntur Catheretes et Omalium. Ob 

 affinitatem Oxyteli cum Omalio ocellos etiam in illo adesse suspi- 

 catus sum, sed frustra quaesivi. 



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

 maro mihi 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 are not there introduced I do not pretend to say. I have not 

 adopted them here from my ignorance of the corresponding groups in 

 the Brachelytra. 



NOTE 2. 

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

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

 the publication of the two last volumes of Kirby & Spence) perfectly coin- 

 cide with the observations in Vol. iv. p. 166 of that work respecting ano- 



