270 



Conspectus systematicus . 



I. 



(Xylotrypes, Oryctes, Parastasia, Osmoderma, 

 Cetonia, Eucklora, Phyllopertha, Melolontha, 

 Rhizotrogus, Serica, Ateuchus, Aphodius, Ain- 



moecius) 



Instrumentet, stridulatoria carina instituta superiore stipitum 

 meixillarium, dentata, ad eireeim inferiorem, luberculosam mandi- 

 bularurn accommodata. 



Antennæ cjuadria?iiculatæ. 



Pedes per paria longitudine crescentes. 



Segmentet dorsalia abdominis priora triplicata. 



Palpi maxillares triarticulati. 



Ocelli nulli. 



Pars manducatoria mandibularurn a petrte scissoria profunde 

 discreta, penicillo brevi, foveæ inserto, supra et infra instructa. 

 Molce mandibularurn calce posteriore scopulifera. 



(Xylotrypes, Oryctes, Parastasia, Osmoderma, 



Cetonia, Euchlora, Phyllopertha, Melolontha, 



Rhizotrogus, Serica) 



Area respiratoria spiraculorum bullam maximam partern 

 amplectens. 



Pedes pilis longioribus crebrati. 



1. 



(Xylotrypes, Oryctes, Parastasia, Osmoderma, 



Cetonia, Euchlora, Phyllopertha, Melolontha, 



Rhizotrogus) 



Malæ maxillarum totæ coalitæ. 

 Apertur a analis transversa, terminalis. 



