48 FAMILY III. (.TIK'ULIONID.E. 



f. Pygiclium concealed by elytra; trochanters large, femora attached 

 to their apex (Fig. 14); form pear-shaped; size, small, not over 

 4.5 mm. Subfamily V. APIOXIX.E, p. G5. 



ff. Pygiclium exposed; trochanters small. 



(/. First joint of antennae longer than second joint (Fig. 13, b.) 



Jt. Hind femora very broad, their outer margin strongly curved, 

 crenulate; beak very slender, cylindrical; length 3.5 mm. 



Subfamily VI. ALLOCORHYXIX.E, p. 90. 



Jih. Hind femora normal; beak short and broad; length 12 or more 

 mm. Subfamily VII. ITHYCERIX^:, p. 91. 



gg. First joint of antennas no longer than second joint (Fig. 13, d.) ; 

 beak short, broad; hind coxae very widely separated, their legs 

 elongate, clasping (Fig. lo); length less than 3 mm. 



Subfamily VIII. TACHYGOXIX.E, p. 93. 



aa. Antennae more or less completely elbowed, with the beak grooved for 

 their reception (Figs. 6, 16) ; club compact. 



i. Abdomen of male and female dissimilar, male with an additional 

 anal segment; club of antennae usually annulated, sensitive, not 

 shining; tarsi usually dilated, third joint bilobed, brush-like be- 

 neath (Fig. 20), though narrow and setose in some subaquatic 

 species. 



j. Prosternum simple or grooved for reception of beak, never forming 

 a triangular plate in front of the coxae. 



k. Beak never long and slender; mandibles with a deciduous cusp, 

 leaving a scar (Fig. 7); habits often epigeal. 



Subfamily IX. OTIORHYNCHIN^, p. 96. 



kk. Beak usually elongate, slender, or if short and stout, received 

 in the breast in repose; mandibles without scar; habits palus- 

 tral or arboreal. Subfamily X. CURCULIOXIX.E, p. 137. 



jj. Prosternum forming a triangular plate in front of the coxae; beak 

 received in the bi'east in repose; tarsi narrow, not dilated. 



Subfamily XL THECESTERXIX.E, p. 515. 



ii. Abdomen in male and female alike, pygidium of both sexes undivid- 

 ed;* club of antennae usually with its basal joint enlarged or shin- 

 ing or both (Fig. 13, e., f.: Fig. 16), feebly or not at all annulated; 

 tarsi frequently narrow, not brush-like beneath. 



7. Pygidium covered; buccal cavity as in Curculioninae, peduncle of 

 mentum short, oral organs exposed; funicle with number of 

 joints frequently reduced. Subfamily XII. COSSOXIX.E, p. 518. 



//. Pygidium exposed; buccal cavity elongate, peduncle of mentum 

 elongate, narrow; funicle 6-jointed. 



Subfamily XIII. CALAXDIUX.E, p. 547. 



*The anal segment of the male is quadrate and retractile in Calandrin;e, causing 

 the abdomen to appear alike in both sexes; it is broader and le_ss retractile in Cossonin;e 

 but not, as in Curculionidse, contiguous with the pygidium which is therefore undivided 

 in both sexes. 



