LARVAL FORMS OF COLEOPTERA 



dartylidat' ; from the (Iryojxiid family Eurypogonidae, the Ela- 

 teroidca (p. 49) may wholly or partly branch; from near this same 

 dryopoid family, or more probably from different Dryopoidea, the 

 C'antharoidea and very likely a minor part of the Elateroidea have 

 come; and from the dascilloid family Dascillidae, the series Scara- 

 bacoidea (p. 51) descends according' to their larval forms through 

 scarabaeoid families like the Trog'idae and the Lucanidae. 



With the eleroid family Ciidae (p. 55) may be associated the 

 series Mordelloidea (p. 60), the series Bostrichoidea (p. 62). and 

 the so-called phytophag'ous assemblage of different series, including 

 the (Vrambycoidea (p. 60), Chrysomeloidea (p. 63), Platysto- 

 moidea (p. 66), and Curculionoidea (p. 66). The Meloidea (p. 

 58) may also belong to the eleroid assemblage of families and 

 series, attaching itself to the eleroid family Melyridae (p. 55), but 

 there are on the other hand some reasons for considering the possi- 

 bility that it might be related to the Cantharoidea. 



The third distinct polyphagous larval type that is more primitive 

 than the byrrhoid type and shows closer affinity with the staphyli- 

 noid leptinid association is found as mentioned in the series Cucu- 

 joidea, notably in the families Lathridiidae (p. 33), Derodontidae 

 (p. 33), Silvanidae (p. 34). and Endomychidae (p. 38). Most of 

 the cucujoid families are plainly derived f I'om this type ; a few, 

 how^ever, not so plainly, such as the larvae of the family Oedem- 

 eridae (p. 40). and the whole tenebrionid association (p. 42'^*-'"^)^ 

 which onh^ indirectly can be traced to the primitive cucujoid 

 larvae through rather adA^anced cucujoid types like the larvae of 

 the Colvdiidae or the Melandryidae. 



