Mycetcparns.'] STAniYLlNlD.E. 213 



separated from M ijretoporus ; at present, however, it appears to be 

 retained under the latter genus by most authorities. 



I, Antenna} comparatively short; fifth joint of posterior 



tarsi longer than fourtli ; first joint of iuterinediate 

 and posterior tarsi nearly equal in lengtli to the 

 three following united. 

 i. Third joint of antennse evidently longer than 

 second ; size larger. 



1. Thorax without accessory punctures at sides of 



disc. 



A. Upper surface pitchy or pitchy red, with 



strong hluisli iridescent retleution, head 



darker M. LUCIDUS, I^r. 



B. Upper surface shining black or pitch-black 



with briglit red elytra, not iridescent . . M. SPLENDEKS, Marsh. 



2. Thorax with two or three accessory punctures 



at sides of disc besides the usual punctures 



near margins. 



A. Upper surface of a dull but distinct red colour 



with head and hind body darker, with a 



slight bluish iridescent reflection on hinder 



parts ; form larger and broader and more 



fusiform . . . M. rUNCTUS, Gj/Il. 



13. Upper surface not iridescent ; form narrower 

 and more parallel. 



a. Anteunaj with fourth joint subquadrate ; 

 upi)er surface entirely pitchy, or brownish 

 red, sometimes castaneous, with head and 



hind body darker M. LEPIDUS, Grav. 



b. Antennse with fourth joint longer than 

 broad, upjier surface black or pitchy-black 



with elytra bright red M, LOli^aULUS, Mann. 



ii. Third joint of antenna; not or scarcely longer than 

 second ; size smaller j thorax without accessory 

 punctures, 



1, Elytra with an accessory series of at least three 



punctures between the sutural and second rows 

 of punctures. 



A. Elytra with accessory series consisting of 



three or four panctures; size smaller . . M. NANUS, Er. 



B. Elytra with accessory series consisting of 



eight or nine punctures . _ M. MONTICOLA, Fowler. 



2. Elytra without accessory series between the 



sutural and second rows of punctures. 



A. Upper surface black, with humeral angles 



and hind margin of elyti'a testaceous ; 



autennaj slender M. ANGULAEIS, He^. 



B. Upper surface dark with thorax, elytra, and 



sometimes head, bright red ; antennas 



strongly thickened M. CLAVICOBXIS, Slej^h. 



II. Antennae very long, reaching considerably beyond 



base of thorax; fifth joint of intermediate tarsi 

 not longer than fourth ; first joint of intermediate 

 and posterior tarsi equal iu length to the two 

 following united. 

 i. Intermediate series of elytra consisting of 5-7 

 punctures; form narrower ; antenna; more slender, 



