PALLODES. 365 
The species of Pal/odes in our region are evidently numerous, but most of them 
appear to be extremely rare, and 1 have not been able to repeat my examination of 
some of them in such a way as to bring to light all the minor structural characters. 
They are, however, more easily distinguished by the superficial points of colour and 
sculpture than is usual in the Nitidulide. 
§1. Middle tibie broad or moderately broad ; hind coxe widely or moderately 
widely separated. 
This group includes the large majority of our species. In some of those placed 
near the end of this section the prosternum is compressed between the coxz and cari- 
nate; in others the hind coxe are more approximate than they are in the species I 
have placed at the commencement of the group. 
1. Pallodes reversus, sp.n. (Tab. XI. fig. 24, 2.) 
Brevis, subrotundatus, flavus, supra nigerrimus, antennarum basi flava, prothorace marginibus picescentibus ; 
nitidus ; prothorace minus obsolete punctato ; elytris subtilius seriatim punctatis, interstitiis parce obso- 
letissime punctatis. 
Long. 32 millim. 
Hab. Mexico, Jalapa (Hoge), Cordova (Sallé). 
Head moderately closely and distinctly punctate, shining. Thorax very short and 
broad, shining, very distinctly punctate. Scutellum large, more finely punctate than 
the head and thorax, still quite distinctly so. Elytra with very fine distant series of 
punctures, and with a very slight and distant interstitial punctuation. Pygidium black, 
shining, moderately closely and not finely punctate. Under surface yellow, shining, 
impunctate. 
This species is of unusually broad and circular form, and resembles the European 
species of Liodes in the family Silphide. There is very little difference in the sculp- 
ture of the surface in the sexes, the male having the elytra only just perceptibly duller 
than the female. The male has an excessively large supplementary segment, which 
in the normal state is quite internal, only its hind margin being seen between the 
edge of the pygidium and that of the last ventral segment. The two sexes can be easily 
enough distinguished, however, by the form of the pygidium, which is much broader 
and more truncate at the extremity in the male than it is in the female. 
Herr Hége procured about a dozen examples of this species. Our figure represents 
a female found by him. 
2. Pallodes mexicanus, sp. n. 
Ovalis, sat convexus, ferrugineus, supra piceus, prothorace rufo-piceo, antennis pedibusque testaceis, illarum 
clava nigra; prothorace obsolete punctate ; scutello levigato ; elytris subtiliter seriatim punctatis, inter- 
stitiis vix perspicue punctatis. 
Long, 4-43 millim. 
