‘758 SUPPLEMENT. 
space between it and the epipleura smooth, whereas in C. impressicollis this space is 
always covered with coarse punctures. The varieties of the species seem to be toa 
large extent local ; the series from Sonora shows only slight variation. 
Copelatus integer (p. 40). 
To the Panama locality Bugaba, add :—David, San Miguel in the Pearl Islands 
(Champion). 
Copelatus fragilis (p. 40). 
To the locality given, add :—Mexico, San Juan Bautista in Tabasco (Hége). 
COPTOTOMUS (p. 41). 
1. Coptotomus obscurus. . 
Coptotomus obscurus, Sharp, Trans. Roy. Dubl. Soe. n. 8. ii. p. 601". | 
Coptotomus interrogatus, huj. op. p. 41°. 
Hab. Norta America”, Texas 1.—Mexico, Guanajuato 2, Tupataro (Hége). 
This change of name results from both sexes of our species having been obtained at 
Tupataro, and an inspection of the male proving that it is C. obscurus. 
RHANTUS (p. 42). 
Rhantus atricolor (p. 42). 
To the Mexican localities given, add:—Northern Sonora(Morrison), Mochitlan (Baron). 
HYDATICUS (p. 43). 
8. Hydaticus amazonicus, var.? 
_ Hydaticus amazonicus, Sharp, Trans, Roy. Dubl. Soc. n. s, ii. p. 655’. 
_ Hab, Mzxico, Vera Cruz (Hége).—Sovutn America, Amazons}, Brazil (coll. Sharp). 
The unique example differs from the type by its narrower and more depressed form, 
and by the absence of the basal fascia and lateral spots from the elytra; but as it agrees 
with a Brazilian example I obtained from an old collection, I have treated it as a 
variety of H. amazonicus. 
THERMONECTES (p. 43). 
Thermonectes succinctus (p. 44). 
To the locality Mrxico, add :—Ventanas (Forrer), Vera Cruz (Hage). 
7 (a). Thermonectes —— ? 
Hab. Mexico, Presidio (Forrer). 
