BIOLOGIA CENTRALI-AMERICANA. 
ZOOLOGIA. 
Class INSECTA. 
Order COLEOPTERA. 
Tribe RHYNCHOPHORA. 
Fam. CURCULIONIDAS (continued) *. 
Subfam. CURCULIONINA F. 
This subfamily, as here understood, is equivalent to the family Curculionide of 
Leconte and Horn, and it therefore excludes all the forms with a mandibular scar 
(Otiorrhynchide). 
Group SITONINA. 
Sitonide, Leconte & Horn ; Sitonini, Bedel. 
SITONES. 
Sitones, Germar, Ins. Spec. Nov. p. 414 (1824). 
This well-known genus includes a large number of Palearctic species, some of which 
seem to be spreading in the United States, as well as numerous North-American forms. 
Not a single Sitones is contained in any of the extensive collections received by our 
* By G. C. Cuampion.: 
+ In this volume the enumeration of the species of the subfamily Curculionine is commenced, the preceding 
volume (Coleoptera, iv. part 3), undertaken by Dr. Sharp, being devoted to the subfamilies Attelabine, 
Pterocoline, Allocorynine, Apionine, Thecesternine, and Otiorrhynchine. The numerous “Groups” of 
Curculionine will be dealt with as is most convenient, there being no other possible method of arranging the 
enormous amount of undescribed material amassed by us, unless publication is delayed till the whole of these 
insects have been thoroughly studied.—Ep. 
BIOL. CENTR.-AMER., Coleopt., Vol. IV. Pt. 4, May 1902. BB 
