8 
Psyche 
[March 
This new species is probably related to Notagonum 
(“ Anchomenus”) marginellus (Er.), but differs from it 
and from other related species in being entirely black 
and in having narrower prothoracie margins. 
Violagoiuim n. gen. 
Broad Agonum-Wke in form; color (in single known 
species) purple or purplish-blue. Head rather short (not 
elongate as in Colpodes) ; mentum toothed; mouth parts 
and antennae normal; both pairs supraocular setae pres- 
ent. Prothorax rather wide, with usual 2 pairs lateral 
pronotal setae. Elytra each with a spine at apex about 
opposite 2nd interval ; striae normal ; intervals normal 
except 9th narrowed apically (above subapical sinua- 
tions) ; 3rd normally 3-punctate. Inner wings full. Legs 
and tarsi normally agonine; tibiae not sulcate on outer 
edges; hind tarsi sulcate on each side above, with setae 
not forming single regular rows on each side below; 4th 
hind-tarsal segment lobed, outer lobe much longer than 
inner; 5th hind-tarsal segment without obvious accessory 
setae ; claws simple. External sexual characters normal 
for tribe. Genotype: Colpodes violaceus Chd. 
Although the species for which this new genus is pro- 
posed was, as a matter of convenience, left in Colpodes in 
my paper on New Guinean Agonini, it is not a true 
Colpodes. The short head particularly distinguishes it. 
The position of the elytral spines distinguishes it from 
the few species of Notagonum that have spines: in 
Notagonum, the spines (when present) are about op- 
posite the ends of the 3rd elytral intervals. The lobes 
of the 4th hind-tarsal segment are longer than in most 
Notagonum. And the general form and color of Violagonum 
are distinctive, though not themselves of generic value. 
Odontagonum n. gen. 
Genus proposed for one medium-sized, flightless, convex 
Agonum- like species with two characters which, so far 
as I know, are unique among Agonini : antennae pube- 
scent from the middle of the 3rd (not 4th) segments, and 
humeri toothed. Since the genus is based on one species, 
other generic and specific characters are all combined in 
