Coleopterological Notices. 91 



from above, and the margin of the epistoma evenly coarctate ; scutellum 



large Piialacri 



Antennpe inserted at the sides of the front, the base visible from above, the 

 margin of the epistoma above the point of insertion being more or less 

 sinuate ; scutellum small or moderate Olibki 



The genera composing the groups may be defined as follows: — 



TOLYPHI. 



Sides of the prothorax not coarctate with those of the elytra.. ..*TolyplllIS 



Phalacri. 

 Spnrs of posterior tibise very short, not projecting beyond the terminal fringe 



of spinnles ; elytra with a discal stria PlialacrilS 



Sijurs of posterior tibi^ long and distinct ; elytra entirely dt'void of strire. 



Plialaci'opsis 

 Olibri. 

 Basal joint of the posterior tarsi shorter than the second. 



Apex of the prosternal process inflexed, without an acute and free edge, 

 and devoid of spinose set.-e ; metasternal process greatly developed, the 

 mesosternum before it reduced to a fine bead. 

 Elytra with one or two discal striie, the suture beaded ; second joint of the 



posterior tarsi moderate in length, free Olilirus 



Elytra with a single discal stria, tlie suture not beaded ; second joint of 

 the posterior tarsi moderate in length, rigidly articulated with the basal 



joint Oliliroporiis 



Elytra entirely devoid of discal striae ; second joint of tlie posterior tarsi 



greatly elongate, subanchylosed to the first *Eulitrus 



Apex of the prosternal process with an acute free edge bearing a transverse 

 series of spinose aetve ; mesosternum more developed in front of the meta- 

 sternal process ; elytra constantly with a single discal stria, the suture 

 not beaded. 

 Mesosternum not prolonged behind the middle acetabula ; second joint 

 of the posterior tarsi very long, subanchylosed to the first. 



Litolibriis 



Mesosternum prolonged and sometimes greatly developed behind tlie 



middle acetabula. 



Second joint of the posterior tarsi very long, spongy-pubescent beneath 



in the male, the articulation with the first joint rigid ; posterior 



tibial spurs long, very unequal ; sexual differences in the posterior 



tibiae, terminal spurs and tarsi strongly marked AcyloillUS 



Second joint moderate in length, anchylosed rigidly to the basal joint, 

 clothed throughout with small subrecumbent spinose setse ; tibial 



spurs moderate ^JLioplialacrilS 



Second joint moderate in length, finely pubescent beneatli in both 

 sexes ; articulation with the basal" joint free ; tibial spurs small and 

 inconspicuous ; sexual dilTerences in the posterior legs not observa- 



