KEY TO FAJIILIKS OF SERRIt'i)RXIA. liS/ 



r. Hind coxal plates with grooves for the reception of the femora 

 in repose. 

 /. Front coxie globose, 

 c/. Thorax loosely jointed. Its hind angles usually prolonged 

 backwards; prosternal spine loosely received in a notch 

 in mesosternum, so as to admit of a springing motion; 

 front coxal cavities entirely surrounded by the iiru- 

 steruum. Family XXXVII. Elaterid-E. p. li'.Hl. 



ijfl. Thorax firmly attached to the remainder i if the body ; iiro- 

 sternal spine prolonged but not movable ; front coxal 

 cavities closed behind by the mesosternum ; length less 

 than .") mm. Family XXXVIII. Throsctd.e. p. 773. 



jf. Front coxre transverse. 



7(. Onychium (pad between the tarsal claws) large and hairy ; 

 antenna; of males usually flabellate; length 11 or 

 more mm. Family XXXVI. Rhipicerid.e. p. H'.iii. 



hli. (luychium small or wanting. 



/. Head constricted behind ; eyes smooth ; flanks of thorax 

 (in our specfes) excavated for the reception of the 

 front legs ; body covered with small scales. 



Family XLV. Clpesid-E, ii. v.ii!. 

 (■/. Head not constricted behind : eyes granulated. 



./. Epimera of mesothorax reaching the middle coxre: 

 body coverings rather soft and flimsy; form usually 

 oval or hemispherical, convex ; length less than 

 i;.."i mm. Family XXXV. DASCYixiDiE, ii. (i^s. 



jj. Epimera of mesothorax not reaching the cox;t?; pro- 

 sternum very short ; thorax usually extending as a 

 form of hood above the head, the latter bent under 

 and rarely visible from above ; length less than 

 7 mm. Family XLIII. I'rixiD.E. ]i. ■<!;:_'. 



cc. Fllnd coxal plates not grooved. 

 7,-. Hind coxffi flat. 



I. Pritsternum not prolonged behind; tarsal joints 1-4 with 

 membranous lobes beneath, the first joint often indis- 

 tinct. Family XMI. Clerid-E. p. ^4r,. 

 IJ. rrosternum prolonged behind. 

 m. Front coxal cavities entirely surrounded by the pro- 

 sternum ; hind coxie without plates : trochanters of 

 middle and hind legs very long. 



Subfamily iXXXVin. <'niijili}iti:i<c. p. 77:^.. 

 linn. Front coxal cavities jjartly formed by the mesosternum: 

 antenme without club ; length less than 4..5 mm. 



Genus (XXX\'ITI|. DiajiPl's. ]>. 774. 

 7,-7,-. Hind coxre prominent. 



i>. Front Coxa' conical, prominent, without trochantin ; tarsi 

 slender; form elongate, narrow; leuirth 10 or more mm. 

 (only 2.2 mm. in Microiiinltlnis). 



Family XLVI. Lymexvloxid.f.. p. s'.i4. 

 [44—2.3402] 



