798 SUPPLEMENT. 
CEDODACTYLUS (p. 630). 
2. Gedodactylus aper. 
Fusco-brunneus, opacus, dense punctatus, subrugosus, antennis pedibusque rufis. 
Long. 5 millim. 
Hab. Mexico, Tlacotalpam in Vera Cruz (Hoge). 
Antenne pale red, slender, delicately articulated, the terminal joint truncate. Head 
short, almost as broad as the thorax, closely and coarsely punctate, somewhat shining 
in front. Thorax rather longer than broad, a little narrowed behind, with the base 
quite rounded; densely and coarsely punctate, even, not shining. Elytra slightly longer 
than the thorax, dull, densely rugose-punctate. Hind body pubescent, indefinitely 
rugose-punctate. 
Very closely allied to the Amazonian @. anceps, but rather smaller and more slender, 
with comparatively more elongate thorax. 
PALAMINUS (p. 631). 
Palaminus concolor (p. 635). 
Before the localities given, insert :—Muexico, Tapachula in Chiapas (Hége). 
Palaminus vittatus (p. 639). 
Before the locality given, insert :—Mexico, Teapa (Hége). 
: STENUS (p. 640). 
4(a). Stenus abscondens. 
Niger, pedibus piceis, palporum articulo basali flavescente ; rugoso-punctatus, parum nitidus ; abdominis parce 
pubescente, segmentis ad basin tricuspidatis. 
Long. 44 millim. 
Hab. Mexico, Chihuahua city (Hoge). 
Head a little broader than the thorax and narrower than the elytra; vertex not 
excavate, broadly but slightly bisulcate ; interstice broad, one third of the width of the 
interocular space, the punctuation rather coarse, dense. Thorax rather longer than 
broad, rounded at the sides; surface rather uneven, without any trace of channel, 
rugosely punctate. lytra rather longer than the thorax, densely and rather coarsely 
rugose-punctate, slightly shining. Hind body very much narrowed to the extremity, 
the bases of the segments strongly tricuspidate, the punctuation moderately close, the 
pubescence depressed but more distinct than on the anterior parts. The male haga rather 
small notch on the hind margin of the last ventral segment ; and the preceding segment 
