CLASSIFICATION OF COLEOPTERA. 313 



matopidse, Lichadidae, Ehipidoceridae, Chelonariidae, Byrrhidae, 

 Nosodendridae, Dermestidae, Heteroceridae, Dryopidae, Helmidae, 

 Georyssidae, Cyathoceridae. 



Family-group : Sternoxia. Families : Cerophytidae, Cebri- 

 onidae, Plastoceridae, Dicronychidas, Elateridae, Eucnemidae, 

 Throscidae, Buprestidas. 



BOSTRICHOIDEA. 



One family-group. Families : Lymexylonidae — Sphindidae, 

 Aspidophoridae, Cioidae— Ptinida;— Lyctida?, Psoidae, Anobiidae— 

 Bostrychidae. 



Heteromera. 



One family-group. Families : Melandryidae, Mordellidae, 

 Rbipidopboridae, Cepbaloidae, CEdemeridae, Pythidae, Antbicidae, 

 Pedilidae, Xylopbilidae, Pyrocbroidae, Meloidae, Salpingidae, Petri- 

 idae, Monommidae, Nilionidae, Trictenotomidae, Otbniidae, Lagriidae, 

 Cistelidae, Tenebrionidae, ^gialitidse, Tentyriidae. 



B. Anghistopoda. 



Family-group : Clavicornia. Families : Cucujidae, Monoto- 

 midae, NitidulidaB, Byturidae, Ostomidae (= Trogositidae) — Crypto- 

 pbagidae, Atomariidae, Mycetopbagidae, Phalacridae, Catopochro- 

 tidae, Erotylidae — Latbridiid^e, Tborictidae, Gnostidae, Adimeridae, 

 Colydiidae, Endomycbidae, ? Pseudocorylopbidae, Coccinellidae. 



Family-group : Phytopbaga. Families : Prionidae, Ceram- 

 bycidae, Cbrysomelidae, Brucbidae. 



Family-group : Rbyncbopbora. Families : Rbinomaceridae, 

 Antbribidae — Platypodidae, Scolytidae — ? Proterrbinidae, ? Agly- 

 cyderidae — Brentbidae, Oxycorynidae, Pibyncbitidae, Apionidae, 

 Bracbyceridae, Curculionidae. 



As distinguisbing cbaracters of tbe suborder Heteropbaga, 

 Kolbe gives tbe following amongst otbers : — Protborax witb 

 sbield-like uotum, and either witb distinct lateral edge or tbe 

 pleurae more or less fused with tbe notum, and in extreme cases 

 (Ebyncbophora) fused also with the sternum, tbe sides then 

 rounded ; the episterna and epimera almost always fused (ex- 

 ception, Passandrini). 



With regard to these, it seems to me that Kolbe has missed 

 the one essential character of the protborax that serves to dis- 

 tinguish the Adephaga from tbe Polyphaga (-= Heteropbaga). 

 This is, as I have already pointed out, tbe presence in the Ade- 

 phaga of a more or less distinct suture between the pleurae and 

 tbe notum, and tbe absence in the Polyphaga of any such suture. 

 In the Adephaga there is generally a suture between the epi- 

 sternum and epimeron of the protborax, but it is wanting in 

 some of the families. It is never, I believe, really present in 

 the Polyphaga. In the Passandrini, mentioned by Kolbe as an 

 exception, there is to be seen an impressed line in a similar 



