SYMPAGUS.—DECTES. 173 
versim sinuato-truncata, angulo exteriore acute dentata.. Pro- et mesosterna latissima, hoc paullo latius. 
Femora modice clavata; tarsi posteriores breves, articulo primo duobus sequentibus vix equali. 
This genus is necessary for the reception of Lepturges letabilis, which differs from 
5 y Pp (puunrg ? 
Lepturges in its wide pro- and mesosterna. In the form of the head and antennal scape 
it has great resemblance to the genera allied to Anisocerus; but the length of the 
scape, and especially the perfect closure of the anterior acetabular sutures, show that its 
right place is in the Acanthocinini group. 
1. Sympagus letabilis. (Lepturges letabilis, Tab. XII. fig. 18.) 
Lepturges letabilis, Bates, Trans. Ent. Soc. 1872, p. 217’. 
Hab. Nicaragua, Chontales (Belt 1, Janson). 
DECTES. 
Dectes, Leconte, Journ. Ac. Phil. ser. 2, ii. 1852, p. 144. 
Canidia, Thomson, Archiv. Ent. i. p. 1983 (1857). 
Also an exclusively American genus, but having a more northerly distribution than 
any of the preceding genera of this group. Its head quarters appear to be Mexico, 
one species ranging into the middle states of North America. The following are the 
only species known. 
1. Dectes spinosus. 
Lamia spinosa, Say, Journ. Ac. Phil. v. 2, 1827, p. 271. 
Dectes spinosus, Leconte, Journ. Ac. Phil. ser. 2, 11. 1852, p. 144. 
Hab. Mexico, San Luis Potosi (Palmer), Puebla (Sal/é).—Nortu America to Kansas 
and New York. 
2. Dectes texanus. 
_Dectes texanus, Leconte, Proc. Ac. Phil. 1862, p. 39. 
Hab. NortH America, Texas.—Mexico, Guanajuato (Sailé), San Luis Potosi 
(Palmer). 
Mexican specimens seem to be intermediate in the degree to which the thoracic 
spines project from the sides, and to connect the two species (or local forms) spinosus 
and texanus, the only difference between which, according to Leconte’s description, is 
that in spinosus the spines stand out at an angle from the sides, and in teranus are 
continuous with the lateral margin. Dr. Horn reunites D. texanus to spinosus. 
3. Dectes cincticornis. 
Canidia cincticornis, Thomson, Archiv. Ent. i. p. 194’. 
Hab. Costa Rica}. 
