52 STAPHYLiNiDiE. [Mi/rmedonuna. 



a. Mandibles simple. 



a*. Penultimate joint of maxillary palpi 



very much dilated Calliceetjs, Grav. 



b*. Penultimate joint of maxillary palpi 

 not, or very slightly, dilated, 

 af. Intermediate coxa; distinctly sepa- 

 rated. 

 *. Hind body more or less narrowed 

 towards base and apex ; thorax 

 strono-ly transverse, habits para- 



sitif. 

 f. First joint of intermediate tarsi 

 about equal to second j posterior 

 angles of thorax rounded (habitat 



in Cossus-hiivrows] Thamiae^A, Thorns. 



. tt- First joint of intermediate tarsi 

 plainly shorter than second; 

 posterior angles of thorax well 



marked (habitat in ants' nests) . Notothecta, Thorns. 

 **. Hind body parallel ; thorax sub- 

 quadrate, or but little broader than 

 long ; habits not parasitic . . . AllANTA, Thorns. 

 bf. Intermediate coxse contiguous or 



nearly so Homalota, Mannh. 



b. Mandibles bifid ScHiSTOGLOSSA, Kraatz. 



ii. Thorax more or less cordiform ; prosternum 



plainly developed in front of anterior coxte . . 



1. Mandibles slender, unlike, the left simple, the 



right dentate BoEBOEOPOHA, Kraatz. 



2. Mandibles not slender, both simple .... Falagria, Steph. 



SZNARDA, ]\Iannerlieim. 



This genus contains three species from Europe and one from Ceylon ; 

 they are found associated with ants ; they differ from all the other Aleo- 

 charinae by tlie Inroad turned up margin of the elytra ; the thorax at 

 base is much broader than the elytra, and has the posterior angles strongly 

 produced. 



Antennffi more strongly thickened ; forehead scarcely im- 

 pressed between eyes; posterior angles of thorax less pro- 

 longed ; length 3^-4 mm D. Maeekeli, Kies. 



Antennae less strongly thickened ; forehead with a distinct 

 longitudinal impression between eyes ; posterior angles of 

 thorax more prolonged ; length 3 mm. ........ D. dentata, Grav. 



X>. IVEaerkeli, Ivies. Broad in front and strongly narroAved behind, 

 of a dull black more or less ferruginous colour, with the sides of thorax 

 and the elytra red, and the apex of hind body testaceous ; head much 

 narrower than thorax very thickly punctured, antennae short and thick, 

 pitchy, with the base red and the apical joint reddish testaceous, fourth 

 joint moderately transverse, 5-10 strongly transverse ; thorax fully twice 

 as broad as long, much narrowed in front, with large explanate side 

 borderj posterior angles strongly produced^ thickly covered with small 



