COLEOPTERA. STAPHYLINID&. 19 
MYCETOPORUS Mann. Iscunosoma Steph. 12 sp. Tach. splendidus Gr. 
Slender, posteriorly attenuated; thorax broadest behind; last joint of max. 
palpi minute. Steph. 5. 26. 5. a. 
BOLITOBIUS Leach. Tacurnus p. Grav. 18 sp. Staph. lunulatus Linn. 
Elongate-ovate, attenuated behind; head long; palpi slender; antenna rather 
long. Don. 15. 532. 
TACHYPORUS Grav. Oxyvorus p. Fabr. 38sp. Staph. chrysomelinus Linn. 
Broad, posteriorly attenuated ; palpi subulate ; abdominal segments entire; head 
small. Panz. 9. 14. 
TRICHOPHYA Mann. Tacuyvorus B.b. Steph. 1 sp. Tach. nodicornis K. 
Short, rather broad; antennz nodose, verticillate ; terminal joint of max. palpi 
stout. 
HYPOCYPHTUS Schiipp. Cyrua Kirby. 5 sp. Tach. granulum Gr. 
Globose, posteriorly attenuated ; abdomen almost retracted beneath the elytra ; 
club of antennz distinct, 3-jointed. 
CONURUS Steph. Tacuyvorus p. Grav. 12 sp. Tach. bipustulatus Fab. 
Thorax transverse, broad behind; abdomen conical; last joint of max. palpi 
minute. Pz, 16. 21. ; 
TACHINUS Grav. Sraruytrinus p. Linn. 26 sp. St. silphoides Linn. 
Broad, posteriorly attenuated ; palpi filiform; abdominal segments emarginate. 
Panz. 18. 20. 
Division 2. Aleocharidea Westw. (Aleochari des Mann.) 
ISCHNOPODA Steph. Ateocuara A. Steph. Cat. 7 sp. Aleoch. aterrima Grav. 
Thorax longer than broad; tarsi long, especially in the hind legs. 
POLYSTOMA Steph. Atrocuara p. Steph. Cat. 3sp. Al. crassicornis K. 
Densely pubescent ; abdomen linear, obtuse ; thorax broader than long ; antennz 
thick in the middle; mouth prominent. 
DEINOPSIS Matthews. ————— 1 sp. D. fuscatus M. Ent. Mag. 22. 193. 
Mandibles with two acute teeth, and broad internal denticulated lobe ; maxillary 
internal lobe denticulated at the tip; labial palpi obsolete ; tarsi 3-jointed ; 
abdomen conical. " 
CENTROGLOSSA Matthews. ————— 6 sp. C. conuroides M. 
Mandibles simple, with an internal serrated lobe; maxillary internal lobe long, 
sabre-shaped ; labial palpi obsolete; labium with two long terminal processes. 
Ent. Mag. 22. 194. 
GYMNUSA Kersten. Myttana p. Erichson.* 1 sp. Al. dubia Gr. 
Antenne filiform, straight ; mouth rostrate; palpi short, last joint subulate. 
DIGLOSSA Haliday. ———— 1sp. JD. mersa Hal. Ent. Mag. 4. p. 253. 
Antenne with the second joint very long; maxille with two very long lobes; 
labium with two long setaceous laciniz in the place of palpi. 
ZYRAS Steph. Atxocuara p. Kirby. 1sp. Al. Haworthii K. 
Elytra very short ; antenne rather long, subgeniculated ; last joint of palpi long, 
slender. Steph. 5. 26. f. 3. i 
(PHLOEOPORA Erichs. Atrocuara p. Steph. 1 sp. Al. cortiealis Grav.) 

* Dr. Erichson gives Al. dubia as the type of his genus Myllena, and the Aleoch. 
brevicollis Pk. (carnivora Grav. Steph. 5. 433,) as the type of Gymnusa. 
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