PHILONTHUS. 397 
§ 2. Thorax seriebus dorsalibus 3-punctatis. 
2. Philonthus abnormalis. (Tab. XI. fig. 2.) 
Elongatus, subdepressus, nigerrimus, nitidus, abdominis apice rufescente ; thorace oblongo, seriei discoidalis 
puncto basali a punctis anterioribus longe remoto ; elytris nitidis, minus crebre punctatis; abdomine rude 
pubescente, crebrius fortiter punctato. 
Long. 104 millim. 
Hab. Mexico, Oaxaca (Hoge). 
Head suborbiculate, quite as broad as the thorax in the female, and in the male a 
little broader, very flat, canaliculate along the middle in front, extremely shining, and 
with only a few coarse punctures. Thorax straight at the sides, much narrower than 
the elytra, longer than broad, the basal puncture of the discoidal series placed at 
between one third and one fourth of the length in front of the base, and very distant 
from the two anterior punctures, which are near the front margin; there are also about 
six supplementary punctures near each side, besides those at the margin. Scutellum 
large, coarsely punctate. Elytra intensely black, shining, rather sparingly but not 
finely punctate. Hind body very black, with the apical segment lurid red, and the 
preceding segment black at the base becoming gradually red behind, the armature 
segment red, with the styles in greater part black ; the pubescence is conspicuous and 
suberect, the surface rather shining and somewhat closely and coarsely punctate. 
This is a peculiar species, located only temporarily in Philonthus, the thoracic 
marginal line being much inflexed in front, so that the elongate lateral seta is remote 
from it; the terminal joint of the hind foot considerably shorter than the elongate 
basal joint. Only two examples have been found, apparently male and female; in the 
former sex the front femora are armed with elongate spines, but the hind femora are 
slender and quite unarmed, although the insect has a very Belonuchoid appearance. 
The figure is taken from the female. 
§ 3. Thoraax seriebus dorsalibus 4-punctatis. 
3. Philonthus palmatus. (Tab. X. fig. 4.) 
Niger ; capite thoraceque lete cyaneis, nitidis, ilo quadrato, elytris violaceo-eneis ; abdomine dense eequaliter 
punctato. 
Long. 11-13 millim. 
Hab. Mexico, Jalapa, Oaxaca (Hoge), La Parada (Saivé). 
Antenne slender, penultimate joint as long as broad. Head short and rather broad ; 
the eyes large, occupying quite two thirds of the length of the sides. Thorax like the 
head, of a beautiful violet-blue colour, shining ; the four punctures of the discoidal series 
equidistant, very distinct ; the sides scarcely sinuate behind. Elytra longer than the 
thorax, shining, of a golden brassy colour tinctured with violet, closely and finely 
punctate. Hind body closely and finely punctate. 
The male has the front tarsi very broadly dilated, the female has them much dilated, 
