348 STAPHYLINIDA. 
of the following segment, the hind margin of which is feebly emarginate in the middle. 
The punctuation of the head and thorax is less deep and coarse than it is in L. xantho- 
pygus, and the punctures of the discoidal series are more regular and less numerous ; 
the elytra are quite black, without the least trace of the leaden-blue colour seen in 
LL. xanthopygus, and the antenne are shorter with the terminal joints broader. In this 
species the hind margin of the antepenultimate segment of the hind body is nearly 
always rufescent, whereas in LZ. xanthopygus it is completely and entirely black. The 
cedeagus in the two species presents important differences. 
The variation in size is great, and the small individual on which I founded L. cog- 
natus is connected by the large series secured by Mr. Champion with the larger forms 
which I then considered with other entomologists to be Nordmann’s S. zanthopygus ; 
but as this abundant species proves now to be in want of a name, the one proposed by 
me for the small variety may advantageously be applied to the species itself. A male 
from Las Mercedes is figured. 
3. Lampropygus analis. (Tab. VIII. fig. 18.) 
Philonthus analis, Er. Gen. et Spec. Staph. p. 495*; Sharp, Trans. Ent. Soc. Lond. 1876, p. 132’. 
Hab. Mexico, Tuxtla, Playa Vicente, Cordova (Sallé), Oaxaca (Hoge), Ventanas 2000 
feet (Forrer); GuaveMALA, San Gerénimo, Zapote (Champion); Panama, Bugaba, 
Volcan de Chiriqui to 4000 feet, Caldera 1200 feet (Champion).—Sovuta America ! 2, 
widely distributed. 
BRACHYDIRUS. 
Brachydirus, Nordmann, Symbol. p. 131. 
Staphylinus, Fam. I1I., Erichson, Gen. et Spec. Staph. p. 358. 
This genus is characteristic of Tropical America, from whence we know about 
a dozen species. ‘These insects Mr. Champion informs me are found in fungus. 
Although many of the species are very similar to one another, they are as a rule 
readily distinguished by the male characters, the ventral plate of the last segment being 
the seat of remarkable developments in the case of several species. 
1. Brachydirus terminalis. 
Gracilis, niger; antennis pedibusque anterioribus et intermediis fusco-testaceo variegatis, abdominis apice 
pallide testaceo, stylis ad apicem nigris ; capite fortiter densissime punctato, elytris abdominisque segmentis 
4° 5°que parce albido-pubescentibus. 
Long. 12 millim. 
Hab. GUATEMALA, Panima in Vera Paz (Champion). 
Antenne very short, the first seven joints testaceous but much infuscate, the terminal 
four quite pale, the basal joint as long as the three following together, fourth and 
fifth very small, sixth and following very strongly transverse. Head very coarsely 
punctate, the punctuation on the anterior half very dense, sparingly pubescent. Thorax 
