100 RHYNCHOPHORA. 
7. Amphidees longulus, sp.n. (Tab. IV. fig. 17.) 
Angustulus, sat elongatus, sordide squamosus, hispidus ; prothorace dense rugoso, medio tenuiter canaliculato ; 
elytris seriatim fortiter punctatis, interstitiis minus latis. 
Long. cumque rostro 6-7 millim. 
Hab. Mexico, San Antonio de Arriba (Sad/é), Tehuacan (//ége). 
This species is covered with a squalid squamosity, which is apparently caducous, and 
the surface is frequently discoloured with dirt; it is hispid with fine hairs which are not 
at all dense, and are either black or grey in colour. The rostrum is rather short, with 
no impressions ; on the front of the forehead there is a minute fovea. ‘Thorax greatly 
rounded at the sides, equally narrowed in front and behind, with the surface rugose, 
the interstices squamose ; there is a channel along the middle. Scutellum very minute. 
Elytra oblong, with regular series of moderately large punctures, separated by rather 
small intervals. The male has a large oblong impression extending from the hind 
margin of the metasternum to near the hind margin of the second ventral segment. 
Hoge found a good series of this species, but nearly all the specimens are very dirty, 
“and apparently the dirt and squamosity become agglutinated by some exudation. 
The second ventral segment is rather shorter in this species than in the allies. 
Dr. Horn pointed it out in our collection as similar to Peritaxia rugicollis; I should 
not, however, from his generic table, refer it to Peritaxia at all, the first ventral suture 
being nearly straight, and the second segment scarcely so long as the following two 
together, which would bring it into the first group of genera distinguished by the table 
on p. 38 in the “ Rhynchophora of N. America.” 
Nocheles vestitus, Casey, is an allied but distinct species. 
8. Amphidees pilosus, sp.n. (Tab. IV. fig. 16.) 
Niger, opacus, pilosus, rostro prothoraceque rugosis, subsquamosis ; elytris profunde striatis, striis sat fortiter 
punctatis. 
Long. cumque rostro 7 millim. 
Hab. Mexico, Paso del Norte (//ége). 
Rostrum short, stout, and curved, separated from the head by a deep transverse 
curved groove. Antenne rather short, the club acuminate, black, the preceding joint 
broad. ‘Thorax much rounded at the sides, densely rugose. Scutellum very minute. 
Elytra suboval, with definite broad striz, in which are punctures placed very near to 
one another. First ventral segment strongly arcuate, in the middle slightly longer than 
the two following together. One specimen. 
This is distinguished from all our other species by the pilosity of the surface, and by 
the deep groove separating the rostrum from the head. The lamine of the apex of 
the hind tibia are scarcely perceptibly flexed inwards, so that the corbels are open. 
There is a feeble squamosity of the surface, the scales apparently being delicate and 
