NEOMEDON. 599 
6. Neomedon densus. 
Sat latus, subdepressus, niger, elytris, antennis pedibusque rufis, his femoribus piceis ; capite prothoraceque 
densissime fortius punctatis, hoc canaliculato; elytris crebre punctatis. 
Long. 54 millim. 
Hab. Mexico, Chalchicomula (Sai/é). 
This insect is broader than NW. mexicanus, and is remarkable for the excessive close- 
ness of the coarse thoracic punctuation; the head also is very closely and coarsely 
“punctate, but not quite so densely as the thorax. In other respects the unique example 
agrees with V. mexicanus. 
7. Neomedon flohri. 
Subdepressus, niger, nitidus, antennis rufis, pedibus piceis, tibiis tarsisque rufis; capite prothoraceque dense 
fortiter punctatis, hoc medio linea levigata angusta, medio obsolete canaliculata; elytris crebrius fortiter 
punctatis. 
Long. 53 millim. 
Hab. Mexico, Las Vigas (flohr). 
This species, also, is closely allied to V. mexicanus, but is broader, and has a fine im- 
punctate line on the thorax ; the head is considerably larger, and the elytra are broader 
and shorter and quite black. The male has a small angular notch at the apex of the 
last ventral plate. 
8. Neomedon nigricans. 
Sat latus, subdepressus, niger, nitidus, antennis palpisque fusco-rufis, pedibus fusco-nigris, tarsis testaceis 
capite prothoraceque crebrius fortiter, elytris dense subrugulose, punctatis ; prothorace medio canaliculato ; 
tarsis anterioribus parum dilatatis. 
Long. 53 millim. 
Hab. GuatEMALA, Capetillo (Champion). 
Exceedingly similar to V. flohri, but undoubtedly distinct on account of the slight 
dilatation of the front tarsi; the elytra, too, in the present species are more densely 
punctate. The male has a slight emargination of the last ventral plate. 
Four examples. 
9. Neomedon puncticeps. 
Sat latus, subdepressus, nigricans, antennis pedibusque fusco-rufis; capite preesertim fortius densiusque 
punctato, prothorace crebrius fortiterque punctato, medio linea angusta levigata, obsoletius canaliculato ; 
elytris crebre fortiterque punctatis ; tarsis anterioribus parum dilatatis. 
Long. 54 millim. 
Hab. Mexico, Mirador (Hége); Guatemana, San Gerénimo (Champion). 
This insect has a large broad head, remarkable on account of its very dense and 
coarse punctuation; the sculpture of the head and thorax readily distinguishing the 
