454 CLASSIFICATION OF THE RHYNCHOPHOROUS COLEOPTERA. 
Antennal grooves ona directed below the eyes, which are roni ; 
B: 
prothorax not lo RACHYDERINI. 
ae ee: below os ores anne are pe ao ace trans prone 
or less lo me 
rae i vide | Sa ao a é LEPTOPSIN. 
Humeri angulated. ie RHIGOPSINI. 
B. Side pieces of met setuionss iirów, distinct: 
ra connate, humeri roun 
Eyes rounded, prothorax not or Heh lobed. DYSLOBINI. 
Eyes transverse, prothorax lobed. OPHRY. 
b. Elytra free, humeri distinct, wings perfect; 
E aia large, beak short e 
Antennal grooves very even not oblique (eyes usually è : 
Maias and prothorax not lobed); outer s$ a of I 
elytra entire . Be 
Antennal Boyes longer, oblique, o ps stria of aiya : 
ce H 
Il. Minni th ied beak rather iong. . vorit. : 
III. poh small, gula prominent; ‘beak short, antennal i 
ves aei Tm ; eyes transverse, prothorax — 
lobed in front. . EUDIAGOGING 
It will be seen after a short isdn of the characters above — 
mentioned for the definition of the respective tribes, that the gen- 
eral arrangement in this family parallels in a remarkable manner 
that which I have developed in the Tenebrionidæ,* and which has 
been adopted by Dr Horn in his excellent monograph of that fan 
ily, as represented in our fauna.t There is, namely, a higher 
ries, characterized by large mentum and. absence of wings; | p 
tinguished in the former case (Asididæ) by the ventral seg) 
entirely corneous, t in the latter (A) by the indistinct eee! wii 
of the metathorax. Then comes a second series, com 
principal subseries, Blapside in the former instance, with te 
widely extended on the flanks, and Tenebrionids with narrow 
pleurz, the first always apterous, the second mostly winged 
the present family we have (B-a) apterous, and (B-b) 
and in the last, as in the genuine Tenebrionide, additional de 
dational characters in the oral organs, which, in the er 
Endiagogus, have the same general form as in the 
species of the next family. 
It is also worthy of remark that while the European $ 
* Class. Col. N. America 
t Trans. Am. Phil. Soc., xiv, 258, sq i 
„3 The only instance in the Tenebrionide o of this character, OO aantalll 
