CURCULIONIDh- ^7; 



inuoronate at trp; pectus and postpectus with a longitudinal white 



Hue. 



Length three-twentieths of an inch. H5| 



Curculio myrmex Herbst. Natursyst. 

 In appearance it has a slight resemblance to a Formica. 

 \_Otidocephalus Chevr. is an older name of this genus. — Lec] 



BALANINUS Germ, 



1. B. proboscideus Fabr. (Rynchsenus.) Rostrum as long agaii: 

 as the body. This seems to be Cur< \ulio Daviesii Swederus in Trans- 

 actions of the Stockholm Society, 1787, and it is probable that 

 the latter name is prior to that of Fabr. 



2. B. nasicus. — Rostrum not so long as the body or hardly 

 longer, not thicker at base, but proceeding abruptly from the head, 

 rectilinear to the middle, piceous. 



It is remarkable by having the rostrum at base hardly thicker 

 than in the middle, in consequence of which it appears to proceed 

 abruptly from the head without any gradation. 



It is the Curculio nucum of Melsh. Catal. 



3. B. rectus. — Rostrum rectilinear or very slightly recurved 

 to near the tip where it curves downward : antenna? very slender. 



Inhabits Pennsylvania. 



This is distinguishable by the rectilinear or slightly recurved 

 rostrum. 



4. B. NASUTUS. — Body robust : scutel elongated white. 

 Inhabits Pennsylvania. 



This species differs from proboscideus F., in being more robus 

 and in having the scutel longer. Schdnherr has proposed tin 

 name of rostratus for this insect, (in litt.) 



TYLOMUS Schduh. 



T. lineaticollis Say. [Rynchsenus.] Journ. Acad. Nat. Sc 

 vol. 3, p. 313. 



Var. a. much smaller. 



Length exclusive of the rostrum less than one-fifth of an inch. 



It differs also considerably in the lineations of the thorax, 

 the alternate elevated, interstitial lines of the elytra are 1' — obvi- 

 ous and not so acutely edged. 1 have named it provisionally 

 pahnicollu. 



[Belongs to Rhyssematus Sch. — Lec] 



