Till'; DAKKMXd I5KKTLES. r24;> 



ce. Midflle cox.-tp very itroiiiinont ; thorax narrower at base than elytra. 



its si(l(<s roundiMl and without a sliar]) cdjjce ; next to last tarsal 



Joiiil lirn.id. siJLihlly hilolu'd; Imdy cuxcriim; rallior llinisy in (ox- 



I ' ■ I'nuiily lA. (IJ.i.MKinii.i:. p, I.".iil. 



</(/. Head stroiiirly and suddenly consiricU'd behind the eyes. 



,(/. 'rii(ir;ix Willi .-i sliarp cd^c ;d sides, its l>ase as wide as elytra. 

 h. Anteun.M' tilil'orni. 



/. Hind ciix;!' with jilales; Iiead witii vertex idhed oi- ridj,^'d he- 



hind, so ih.it in extension it rejKises on tiie front ed,ij;e of tlie 



tln)rax ; .alidduien usually prolonucd in ;i style oi- ])ointed 



r ' ; : s. l'\innly LXI. ;\I()ia)Ki,i in i:, p. Y.'A)>. 



a. Hind eox.M" without plates; characters otherwise as in Melan- 



di'yi(he; lentith less than ;">..") mm. 



Tribe ( I>\1II I. Si-ntpirmi. p. 12i>!). 

 )ih. \\\\v\\\\:v llabellale (male), siibserrate (female); characters 

 otherwise .-is in Khipiplioi'ida\ 



(Jenus (IA\'I. PclccDlouni. p. i;;i;.">. 

 (/(/. Sides of thii'.ix niore or less rounded and wilhout a sharp edj^e. 

 j. Thorax ;it base narrower than elytra. 

 I:. Hind coxa' nor prominent; larsal claws simple; antenna' fili- 

 form and simple; he;id with au abrupt narrow neck; leufith 

 less than ll' nim., usually less than ~> nun. 



l'aniil\ I, XI I. Antiiiciuk, p. i;>2(>. 

 7rA'. Hind coxa> larijce. pi-ominent. 



/. Tarsal claws simple; head horizontal; anleniKe usually 

 branched in male, serrate in fenmlo ; next to last tarsal 

 .ioints very broad. 



Family LXIII. Pyrociikoid.k. ii. 1.">4('>. 



//. Tarsal cl.-iws cleft or toothed; front vertical; elytra and 



sides of abdomen without coaihiptation ; leni;th <! or 



!" r:' it'in Faudly LXIV. Mkloid.k, \). i;'.r>0. 



./■/. "IMioi'iix at base as wide as (dytra ; form as in Mordellid.'O, the 



abdonien not ending in a spinous process ; elyl r;i usually shorter 



than abdonien and n;irriiucd behind; antenna' iieclinate in the 



males. fre(picnlly serrate in the females. 



F;iiuily I.XW Uii ii'ii'iioinn i;. ji. \'^^^4. 



Family LV. TKNEIUv' I( )N I D.E. 



'I'lih: I)aix'K'mx(; IJkktlks. 



A lai'oc i'niiiily wlicsc species \ary iircatl\ in size ami t'onii of 

 liody. Ill coldf tlicy arc moslly hhick oi' dark' lii'owii, whence the 

 name of tlie typical <;cnus. 7\ iwhi'lo. which is (lefi\-e(l from a jjatiii 

 word meaiiino' "darkness." The lai';L;('r t'orms have a pei-iiliar loose- 

 joinled a])|)eai'ancc and Inii^'. rather clumsy and awkward leos. The 



