678 BYRRHIDZ. 
1. Limnichoderus curtulus, sp. n. 
Breviter ovalis, posterius acuminatus, nigricans, subtus rufescens, pedibus flavis ; tomento minuto griseo 
undique vestitus, minutissime punctulatus, punctis majoribus adspersis perparum conspicuis. 
Long. 14, lat. vix 1 millim. 
Hab. Panama, Caldera in Chiriqui, San Miguel in the Pearl Islands (Champion). 
Very like the European Limnichus sericeus in clothing and sculpture, but much 
smaller, of different outline, and on the under surface very distinct. I am not able to 
see the antenne. The thorax is very short, the sides straight, but strongly convergent in 
front. The sculpture of the elytra is very difficult to see on account of the fine matted 
pubescence, but it consists of extremely minute punctures, and other much larger, 
though still very fine, remote punctures scattered over the surface. The whole of the 
under surface is red, the tibiee paler. The prosternum is short. ‘Two specimens. 
2. Limnichoderus indiscretus, sp. n. 
Breviter ovalis, posterius acuminatus, nigricans, subtus rufescens, antennis pedibusque testaceis ; subtilissime 
griseo-pubescens, subnitidus, punctis adspersis parum conspicuis. 
Long. 14 millim. 
Hab. Guatemaus, Duefias (Champion). 
Closely allied to Z. curtulus, but rather larger, with the surface less densely clothed 
with tomentum, so that it is a littie shining; the scattered punctures on the elytra 
are considerably larger. I have seen the antenna in this species; it is of the same 
type of structure as that of Limnichus sericeus, the third joint being thick, about as 
long as broad, and from this to the sixth joint each becomes more slender, so that the 
sixth is narrower than either of the contiguous joints, being about two or three times 
as long as broad. ‘T'wo specimens. 
I possess a specimen from Castelnau’s collection of a species closely allied to 
L. indiscretus, labelled *‘ Ersachus americanus, De}. Texas.” It may possibly be 
Limnichus ovatus, Lec., but this is very doubtful, as I interpret Casey’s description 
of that species as indicating that the angles of the thorax are spinose. 
PHALACRICHUS, gen. nov. 
Antenne tenues, fragiles ; clava laxissime articulata. Prosternum sulcatum. 
Allied to Eulimnichus, but with very different antenne, the mentum and ligula 
smaller and less horny, and the terminal joints of the palpi larger. The colour and 
clothing of the body are quite different, the pubescence being fine, short, and erect, 
and the facies somewhat recalls that of the Phalacrida. There is a peculiar transverse 
seriate punctuation on the thorax. The arrangements for the contraction of the head 
and legs seem to be much the same as they are in Hulimnichus. In facies, Phala- 
crichus appears to a certain extent to connect the forms allied to Limnichus with the 
