COLTDIIDvE. ENDOMYCHIDiE. 



117 



III. Antennae less widely separated from one 

 another ; basal joint exposed even in the state 

 of retraction, 

 i. Tarsi 4-jointed ; terminal joint of maxillary 

 palpi not minute ; second joint of antennae 

 inserted more or less distinctly at the back 

 of the first joint. 



1. .Front coxae approximate Deretaphrinje. 



2. Front coxae distant Bothriderinje. 



ii. Tarsi 4-jointed; terminal joint of maxillary 



palpus minute, aciculate. 



1. Prosternum entire in front Cerylinje. 



2. Prosternum separated from flanks by a deep 



fissure Lapethinje. 



iii. Tarsi 3-jointed ; visible portion of hind coxa 

 minute, globular, widely separated from the 



side-piece Discolominje. 



[Family 45. ADIMERIDiE.] 



Minute insects with the first joint of the tarsi very broadly dilated 

 and the last joint elongate, apparently two-jointed, but with two 

 minute joints at the base of the terminal joint, which are almost con- 

 cealed in the cavity of the first joint ; other characters those of the 



COLYDIIDiE. 



This family contains one genus and three species from Central 

 America and Brazil ; nothing is known of their life-history ; the 

 tarsal structure differs from that of any other known Coleoptera. 



Family 46. ENDOMYCHIDjE. 



Variable in size and general appearance ; antennce inserted 

 between the eyes at the front angle or at the side margin of the 

 forehead, usually eleven-jointed, rarely eight- to ten-jointed, or even 

 four-jointed, with a large club ; anterior coxal cavities open behind ; 

 anterior and intermediate coxce globular or somewhat transverse, 

 posterior coxce transverse, widely separated ; tarsi crypto-tetramerous 

 or pseudo-trimerous, with the third joint very small and concealed in 

 the bilobed second joint, or plainly four-jointed, or rarely three-jointed ; 

 abdomen with jive free ventral segments, or with a sixth visible, 

 the first the longest ; epimera of mesosternum obliquely quadri- 

 lateral. 



This family contains about 500 to 600 species, many of them of 



