COLEOPTERA. ENDOM YCIIID.^. 393 



which supports a fleshy tubercle^ from which a colourless scented 

 fluid is discharged ; the mandibles short, robust, and rather obtuse ; 

 the head is black, and can be withdrawn to the prothoracic cavity. 



I am indebted to M. V, Audouin for the larva (^fig^ 49. 6.) of 

 Triplax nigripennis {Jig. 49. 3. ; 49.4. maxilla, 49. 5."tarsus), which he 

 succeeded in tracing to its final state. This larva is extremely similar 

 to that of Colydium sulcatum : it is rather short, subcylindric, somewhat 

 curved, and rather fleshy in its consistence, with two transverse rows 

 of short bristles on each dorsal segment. It has three pairs of thoracic 

 legs, and an anal proleg, and the terminal segment is armed above with 

 two short, horny, recurved points. There is unquestionably so strong a 

 natural affinity between this family and the Engidae, and some other Ne- 

 crophaga, that the structure of the mouth is evidently here of higher 

 value than that of the tarsi: indeed, Mr.MacLeay places the genus Lan- 

 guria in the family Engidae, conceiving it allied to Helota, and describing- 

 a species which he considers forms the connecting link between Lan- 

 guria and Cerylon. The genera Phalacrus and Agathidium, which are 

 introduced into this family by Latreille, have certainly but little affinity 

 with the other species, and have accordingly been separated therefrom, 

 as a distinct family by Stephens, and other English authors. Amono-st 

 the exotic genera, the most conspicuous are the extensive and hand- 

 some Brazilian genus Erotylus Fab., having the maxillary palpi 

 terminated by a large crescent-shaped joint ; and Languria Latr., 

 having the body linear, and the club of the antennae often 5-jointed. 



The second family, ENDOMYCiHD.EZe«c/i (Fungicola? Z«^/".), is dis- 

 tinguished by the pseudo-trimerous tarsi ; the antennae longer than the 



* BiBLioGR. Refer, to the Endomyciud-e. 



Weber. Observationes Entomologicc-c. 



Latreille. Genera Crust, et Ins. 1. pi. xi. 



Gvtrin. Icon. R. An. 



Dumiril. Consid. gener. pi. 21. 



Gory. Ann. Soc. Ent. de Trance, 1834. (Notiopliygus.) 



Ferty. Del. An. art. Braz. 



Cermar. Insect. Nov. Sp. 



Ferty. Delect. Animal, art. Braz. (Stcnotarsus ) 



Hope, in Griff. An. K. 



Olivier, Fahricitis, SfC. 



