No. 2323. LARVAE OF THE CLERIDAE—BOVING AND CHAMPLAIN. 595 



drical tenth segment, forming an efficient pseudopod in a type as 

 Phosphaenits. 



The Elateridae have perhaps developed from the Trogositidae. 



The relationship of the Malacodermidae is not clear. Through the 

 Telephoridae there is some connection both with the Malachidae and 

 the Elateridae. From the first family, however, the Telephorids are, 

 as shown above, readily distinguished; from the Elateridae not so 

 easily. These two families have practically all characters in com- 

 mon, except the shape of the spiracles; yet a close relationship witk 

 the Elaterids might be more apparent than real. 



C. C. PHYLOGENETIC AFFINITIES OF THE SINGLE FAMILIES OF THE CLEBOIDEA TO OTHER 



C0LE0PTEBU8 FAMILIES. 



After the previously given discussion on the systematic and phy- 

 logenetic position of the Cleridae among the families with which they 

 directly or more indirectly are associated and the short characteri- 

 zation of these other families of the series and their probable phy- 

 logenetic relations to each other, it might be proper to end with a 

 brief, partly summarizing indication of the possible affinities of the 

 Cleroidea to other families outside this series. 



The Cleroidea are connected with the Byrrhidae, the Silphidae, 

 and probably with several of the Chrysomelid groups through the 

 Dermestidae, possibly with the Bothrideridae through the Cleridae 

 and Trogositidae, with the Bostrichidae, Lyctidae. and Ptinidae 

 through the Dermestidae and Trogositidae. The Parnidae and Rhi- 

 piceridae come close to the Byrrhid-like genera Ptilodactyla and An- 

 chytarsus and to the family Heteroceridae. The Eucnemidae are 

 most likely connected with the Buprestidae. 



C. d. TABLE OF SUBFAMILIES, DIVISIONS, SECTIONS AND GENERA OF NORTH AMERICAN 



CLERID LARVAE. 



SUBFAMILY A, p. 597 (large bifore spiracles). 

 Genus 1. Necrobia, p. 597 (two ocelli). 

 SUBFAMILY B, p. 599 (frons posteriorly pointed; no epicranial suture; second 



antennal joint small). 

 Division I, p. 599 (5 ocelli) : 



Section a, p. 599 (vividly colored, well-developed b'asal plate, gula long). 

 Genus 2. Thanasinms,i).G01. (unicolorous, cylindrical cerci) and £7noc^e- 



rus, p. 602 (unicolorous; cerci corniform or claviform). 

 Genus 3. Enoclerus sphegeus, p. 604 (epicranial tubercles). 

 Genus 4. Galeruclerus, p. 606 (spotted; with ampullae). 

 Section b, p. 607 (slightly or not colored ; basal plate poorly or not developed). 

 Genus 5. Charicssa, p. 608 (ampullate; basal plate laterally rectilinear). 

 Genus 6. Phyllobacnus, p. 609 (ampullate; large intersegmental mem- 

 brane; no basal plate). 

 Genus 7. Neichnea, p. 610 (no cerci). 

 Section c, p. 611 (vividly colored; gula short). 

 Genus 8. Trichodes, p, 611 (very hairy). 



