768 SUPPLEMENT. 
CHETARTHRIA (p. 86). 
Chetarthria glabra (p. 87). 
To the locality given, add:—Panama, San Miguel in the Pearl Islands (Champion). 
Chetarthria leticula (p. 87). 
To the locality given, add :—PANAMA, San Miguel in the Pearl Islands (Champion). 
HELOPHORUS (p. 85). 
3. Helophorus minutus. 
Helophorus minutus, Oliv. Ent. iii. n. 38, p. 7, t. 1. f.6*; Rey, Hist. Nat. Col. Fr., Palpicornes, 
2nd ed. p. 179”. 
Hab. Evrore 12,—Mexico, Northern Sonora (Morrison), Chihuahua city, Durango 
city (Hége). 
Iam unable to find any character that satisfactorily separates the series found by 
Hoge and Morrison in Mexico from this common European species. 
4. Helophorus —— ? 
Hab. Mexico, Northern Sonora (Morrison). 
A single example of a very obscure species, possibly an extreme variety of H. regu- 
laris, but more likely distinct. 
5. Helophorus 2 
Hab. Merxtco, near the city (Hége). 
A single example in a very dirty condition, apparently closely allied to H. minutus, 
but on account of its larger size (5 millim. long) probably distinct. 
OCTHEBIUS (p. 90). 
1(a). Octhebius aztecus. 
Minor, niger, capite, prothoraceque metallescentibus, elytris fusco-testaceis, antennis, palpis pedibusque testaceis, 
illarum clava grisea; prothorace sublevigato, medio canaliculato, utrinque parum profunde bi-impresso ; 
elytris seriatim punctatis. 
Long. 17 millim. 
Hab. Mexico, near the city (ége). 
Head brassy in colour, with two moderately large impressions on the vertex. Thorax 
nearly as long as broad, without distinct punctures, largely depressed near the anterior 
angles ; with a distinct channel along the middle, on each side of which is a faint 
longitudinal impression, and in front of this with an indistinct small fovea. Elytra 
with very regular series of punctures, without pubescence. : 
