64 THE ENTOMOLOGIST. 



In Ceuthorhyuchus the division with a six-jointed funiculus 

 is held as being generically distinct, but no other character 

 is adduced ; hence it seems to me unnecessary to maintain 

 it. Phytobius is brought from the neighbourhood of Eri- 

 rhinus and its near allies, Rhinoncus and Araalus ; indeed 

 the two former of these scarcely merit separation. 



The genus Eubrychius of Thomson is accepted for Lito- 

 dactylus velatiis, and some other sections are indicated. The 

 following table will give a clearer view of this interesting 

 little group : — 



A ]. Antenna3 lO-jointed; scape short. 



B ]. Tarsi bilobed. Velatus. 



B 2. Tarsi filiform. Leucogaster. 



A 2. Antenna; 11-jointed; scape reaching the eyes. 



B 1. Thorax faintly emarginale in front. 



C 1. Claws simple. Canaliculatus, Waltoni, 4-tuberculatus, 



Comari. 

 C 2. Claws bifid. 4-nodosns, 4-cornis. 

 B 2. Thorax deeply euiarginate ; claws bifid. Rhinoncus. 



In the Cossonides no change has been made, but the Sco- 

 lytidaj have been subjected to a complete revision by MM. 

 EichhofFand Cliapuis, the result being, as usual, a large in- 

 crease of geneva. The Hylesinides are not much altered, 

 save that Dendroctonus, as now restricted, contains no Engj- 

 lish representative ; a new genus, Blastophagus, having been 

 fbnned for D. piniperda : D. pilosus also forms the type of 

 the genus Carphoborus, Etch. In the Tomicides the sub- 

 division has been greater; the two Xyloteri are regarded as 

 types of distinct genera, the old name Trypodendron being 

 retained for X. domesticus, while three new genera have been 

 formed at the expense of Tomicus, chiefly on the structure 

 of the oral oragans, and comprising the various species not 

 retiise .behind. Numerous and important changes are thus 

 inaugurated, 'more so perhaps than in any other family of 

 Coleoptera; and already two other theories are in the field ; 

 but the fact that Lacordaire has been able to apply his, more 

 or less successfully, to all the known genera, will ensure its 

 adoption till our material shall again get unmanageable ; and 

 indeed, though our knowledge of specific Ibrms will increase 



