390 STAPHYLINIDA. 
The emargination of the ligula in this species is excessively minute; so that by this 
species and 8. mendicus, the genus Hesperus is linked very closely with Staphylinus. 
AMICHORUS. 
Ligula parum prominula apice integro; palpi parum graciles; mesosternum inter coxas mediocriter productum, 
apice obtuse acuminato, absque carina transversa. Pedes graciles. 
The insects for which I propose this generic name are apparently almost equally 
allied to Staphylinus, Philonthus, and Hesperus, their facies being intermediate between 
that of the two first-named genera; they cannot be associated with Staphylinus on 
account of the unemarginate ligula and the slender legs; while from Philonthus and 
Hesperus they depart by the absence of a transverse carina on the mesosternum, and by 
the extreme deflection in front of the prothoracic upper marginal line. The position 
of the genus is clearly between Staphylinus and Philonthus, with the former of which 
it is closely connected by means of those Central-American species I have located near 
the end of the genus Staphylinus. 
1. Amichorus fauveli. (Tab. IX. fig. 26.) 
Niger; capite, thorace elytrisque lete cyaneis, illis nitidis, crebre fortiter punctatis; abdomine apice late rufo- 
et aureo-pubescente. 
Long. 14 millim. 
Hab. Mexico (Sallé), Mirador (Hége). 
Antenne nearly black, stout, with the five or six penultimate joints transverse. 
Head rather narrower than the thorax, very coarsely punctate, with a smooth space on 
the middle; eye occupying more than one half of the length of the side. Thorax 
subquadrate, rather closely, moderately coarsely punctate, each puncture bearing a 
short black hair, a smooth line along the middle. Scutellum dark violet, pubescent. 
Elytra sparingly, distinctly, and finely punctate. Hind body rather shining, sparingly 
punctate and pubescent; the hind margin of the sixth segment, and the whole of the 
seventh, and the terminal styles, of a bright orange colour, and bearing a golden 
pubescence. Legs black. 
I have seen only two examples of this species; both are females. The individual 
from Sallé’s collection is of a more violet tint on the anterior parts than the other; 
this example is figured. The species is dedicated to M. Albert Fauvel of Caen, to 
whom we are chiefly indebted for our knowledge of the genus Hesperus. 
2. Amichorus cyaneus. 
Niger ; capite, thorace elytrisque lete cyaneis, illis nitidis, fortiter minus crebre punctatis; abdomine parce 
punctato, segmentis 6° 7°que basi summo fascia pubescentiz albide, 
Long. 18 millim. 
Hab. Mexico, Mirador (Hége). 
