CURCULIONIDES. 2G0 



TANYMECUS Germ. 



1. T. LACAENA.— Body a little cupreous, dull yellowish cine- 

 reous, densely punctured : rostrum with a raised line, tip widely 

 indented above: antennae blackish rufous: thorax with three ob- 

 solete blackish vittae; widest a little before the middle : scute! 

 very small, cinereous : elytra with the striae; hardly impressed 

 at base but obviously impressed towards the tip, punctures rather 

 large, quadrate ; interstitial lines flattened, tip of each with a 

 short joint in the middle. 



Length to tip of rostrum three-twentieths of an inch. 

 ( 'urculio lacaena Herbst ? Natursyst. 



2. T. confusus. — Much like the preceding but is destitute of 

 the thoracic vittaa. 



Length to tip of the rostrum about three-tenths of an inch. 

 [Appears to be T. confertus Sch. — Lec] 



APHRASTUS Schonh. (in litt.) 

 A. taeniatus nob. Journ. Acad. Nat. Sc. 

 Elytra whitish, second and fourth interstitial lines light 

 brown. [10] 



SITONA Germ. 



1. S. indifferens. — Body black, rather thinly covered with 

 cinereous hair : rostrum short, dilated, with an indented line 

 which does not reach the tip : thorax cylindric with small, ir- 

 regular, hardly impressed punctures : elytra striate, the strife 

 with rather large punctures : feet obscure piceous. 



Inhabits Missouri. 



Length three-twentieths of an inch. 



In form somewhat like lineellus Gyll. 



2. S. scissifrons. — Covered with white scales; elytra with 

 black spots. 



Inhabits Missouri. 



Body entirely covered by minute scales, which on the sides of 

 the thorax and elytra are white, and on their middle light brown; 

 head obviously punctured and with a widely impressed line ex- 

 tending to the tip: antennae dark piceous; basal joint paler, 

 clavate : thorax rather short, slightly rounded each side, obviouslj 



