DYTISCIDA. 749 
Hab. Mexico, Vera Cruz (Hoge). 
Distinguished from C. simplex by the more oval form, but in other respects extremely 
similar to that species. A considerable series showing no variation has been received. 
Canthydrus rufipes (p. 7). 
Before the localities given, insert :—Mexico, Vera Cruz, San Juan, Bautista in 
Tabasco (Hége). 
LACCOPHILUS (p. 9). 
Laccophilus apicalis (p. 10). 
To the localities given, add:—Panama, Pefia Blanca, Panama city (Champion). 
Laccophilus decipiens (p. 10). 
To the Mexican locality given, add :—Chihuahua city (Hoge). 
In this, as well as in some other species, there occur rarely females with the epipleure 
dilated. I had previously supposed this to be a constant character for this sex in the 
species where I noticed it; but I am now convinced that in the case of this, and pro- 
bably of other species, it is only a rare and exceptional occurrence: another very 
remarkable form of female dimorphism is thus added to those previously recognized as 
occurring in this family of Coleoptera. 
Laccophilus fuscipennis (p. 10). 
The character of dilated epipleure is not a specific one, and this species, therefore, 
is distinguished from ZL. confusus, so far as I can at present judge, and we have received 
no more examples of it, solely by the larger size and the immaculate upper surtace, and 
the absence of a coxal file in the female. 
Laccophilus confusus (p. 11). 
To the Mexican locality given, add:—San Juan Bautista in Tabasco, Vera Cruz 
(Hoge). 
We have received now a good series of this species, and it appears at present to be 
really distinct from L. americanus: a form of the female with dilated epipleure occurs 
rarely. The coxal file is apparently always present in the female, though much more 
delicate than it is in the male. 
10 (a). Laccophilus suffusus. 
Laccophilus suffusus, Sharp, Trans. Roy. Dubl. Soc. n. s. ii. p. 293°. 
Hab. Panama, Bugaba (Champion).—Soutn America, Bahia. 
