158 
THE ORDER OF COLEOPTERA. 
A. Tarsal claws simple ; body usually moderately elongated. 
B. Pedicel, or lirst joint of the antenna?, cicatrised at the end ; size large, usually an inch or more 
in length Monohammus. 
B 13. Pedicel without cicatrix or scar. 
C. Middle cotyloid cavities open on the outer side ; thorax usually unarmed, or, at most, with an 
obtuse tubercle at the side ; thighs not at all, or but slightly clavate ; size usually about 
medium. 
D. Antenna? two or three times as long as the body, at least in the males ; thorax longer than 
wide. 
E. Antenna? naked ; thighs linear, the hinder ones nearly as long as the abdomen : 
‘ Dorchabciikma. 
E E. Antenna? hairy ; hind thighs sub-fusiform, not reaching beyond the 2d abdominal seg- 
ment HIPPOP6I8. 
1) D. Antenna? never much longer, sometimes shorter, than the body ; thorax not longer than 
wide, (except Adotus.) 
F. Body ornamented with tufts of long hairs ; thorax with a tubercle at the side ; thighs 
sub-clavate Dbsmiphoba. 
F F. Body without tufts of hair. i 
G. Head very prominent; upper lobos of the eyes separate or wanting ; legs very short : 
Spalacopsis. 
G G. Head and eyes ordinary. 
H. Legs rather long, thighs linear, the hind ones reaching the end of the 4th abdominal 
— segment. Often rather large species Sapehpa, 13.*^ 
H H. Legs short ; thighs sub-clavate or fusiform, not reaching at most beyond the 3if 
abdominal segment. 
I. Body robust; antenme longer than the body; lower lobes of the eyes elongated : 
Oncideres. 
I I. Body more or less elongated ; eyes ordinary. 
K. Head retractile ; thorax longer than wide ; antenme much shorter tkau the 
body; eyes deeply notched Ai>etub. 
K K. None of the above characters. 
L. Eyes coarsely granulated ; size medium Ataxia. 
L L. Eyes finely granulated ; size small. 
M. Antenna? hairy ; elytra plane Eupooonius. 
M M. Antenme not hairy ; elytra with a rounded elevation at the base : 
PSBNOCEKUS. 
C C. Middle cotyloid cavities closed ; thorax usually with a small spine or tubercle at the sides ; 
antenme longer than the body ; hind thighs clavate, and reaching nearly to the end of 
the abdomen. Size usually below medium. 
N. Size about medium ; thorax with a spine at the middle of the sides. 
O First joint of antenna? rather short, and pear-shaped ; female without ovipositor : 
^ Acanthodereb. 
O 0. First ioiut of antenme elongate obcouic ; female with an exsertod ovipositor : 
* GRAPiiisntua. 
N N. Size below medium ; body rather short and thick, thoracic tubercle obsolete^: 
Lkptostylus, 10. 
N N N. Size much below medium ; thoracic spine behind the middle of thorax Leiopus. 
A A. Tarsal claws bifid at the end, or with a tooth near the base ; body usually elongated and slen- 
der ; antenme about as long as, or shorter than the body. 
P. Eyes completely divided ; three intermediate segments of the abdomen shorter than 
the others. 
Q. Claws bifid ; body stout; size medium Tetraopkb. 
q Q. Claws toothed at base ; body slender size small Tktrops. 
P P. Eyes not divided ; body elongated, slender, and parallel. 
K. Four first abdominal segments equal, or gradually decreasing. 
S. Claws bifid. 
T Hind legs elongated, thighs reaching the end of the 4th abdominal segment : 
Stenostoja 
X T. Legs moderate, hind thighs Viot reaching the end of the 3d abdominal s«;g 
ment • •Phytcecia 
SS. Claws toothed at base ; legs short Ouerea, 13 
K R. Throe intermediate segments of abdomen shorter than the others ; head retrac 
Ampujonycha 
