XXXV'lll INTRODUCTION. 



by A2:lycidercp with tlie Clavicoriis : by Rhinomaceridse with 

 Pytliidse ; by AmycteridaB with Tenebrionidoe ; by ScolytidsB 

 with Bostrichinse and the Servicorns, and finally by Anthribidae 

 with Lamiinae. 



Elytra with iiono, or very feeble fold on inner surface near the edge ; 



% and 9 pygidiuni alike. 2.. 



Mlytra with strong fold on inner face. 4. 



2. Labrum wanting. 3. 

 Labrura distinct. (p. 427) Rhinomacekid/K. 



3. Mandibles flat toothed on inner and outer sides, (p. 428) RuYNCurriD/h: . 

 Mandibles stout, pincer-shaped. (p. 431) Attelabiua:. 



4. Pygidium of male divided. 5, 

 Pygidium of both sexes undivided. 7- 



5. Tarsi usually dilated, brush-like beneath. tj. 

 Tarsi setose, gular margin elevated, prosternum excavated. 



(p. 432) Byksopidak. 



6. Mandibles with deciduous piece, leaving scar. (p. 433) Otiorhynchid^. 

 Mandibles without accessory piece. (p. 458) Curculionida;. 



7. Pygidium normal, covered or uncover(;d, tibia? not serrate. 8. 

 Pygidium surrounded at edge by elytra ; tibi;e usually serrate. 



(]). 512) SCOLYTID.'E. 



8. Antennae geniculate: labiinu wanting, last spiracle not visible. 



(p. 503) Calandrid.I!;. 

 Antennae straight, 10-11-jointed ; laV)runi distinct; last spiracle un- 

 covered, (p. 525) AKTHKIBIDi?i. 



The foreign families having no rcprcscntntivos in our fauna 

 are, besides Aglyciderida^, differing from Anthribidie by pygidium 

 (•overed, and tarsi stouter, not brush-like beneath; Amyeteridte, 

 found in Australia, differing from Byrsopidae by prosternum not 

 e.\(,-avated, and also by the last abdominal segments deformed and 

 excavated : Brachyeeridaj belong to the Mediterranean fauna, 

 and have the mentum very large, mandibles without deciduous 

 piece, and narrow setose tarsi. Belidse, from South America, 

 have the body narrow and Lixus-like in form, the ventral seg- 

 ments of equal length, and two small apical libial .spurs. 



The habits of these insects are varied, but with the exception 

 of Brachytarsus, which is said* to live on roccida*, the food is 

 vegetable, on the leaves, under bark, and in woody i)arts and 

 stems of plants; a very small number, Apiou and Coccotorus in 

 seeds. Certain Erirhinini are subaquatic, and have a water- 

 proof covering. 



* Lacordaire, Gen. Col., vii. 481. 



