THE ANT-LOVIXO llKiyi'M: S. '-^2') 



c. Frontal uiar.Lciii prodiicrd hcymul llic line liclwccn llio Icisos of nii- 

 tenuae. 

 (/. Vertex iiini-t' III' less sralinms or I'tumiu'iicd and rnriiiatc. 



r. \'('i-l('\ vaullcd uv elevated, leclilv- scahiMus; last aiiteimal joint 

 i<\' male luiii,'. will) an erett lodlh; elytra puiietalo, the shoul- 

 ders not an^Milate: len.u'th l.r. nun. <!1T. HiPAKirs. 

 cc. N'ertex mil vaulted, enarsely sralinais; last anleunal Jiiint of 

 m;ile without a to(.lli ; h'n;,'tli '2:2 nnn. 

 /. I'dvoa- of oeei]iut not iiuhescent ; frontal maru'iii of male 

 noteluMl in uuddk'; shoulders auiiulale. scaimuckps. 

 /'/. l^'ovea- of (icci]iiil jiuhoscenl : head very Hal ; frontal margin 

 trian.i;iilar : thorax with consiiieiious discal crests and dee]i 

 grooves, so thai the disk aiipears to he marked witli five 

 lines. i,i.\i;a'iicoi,i,is. 

 '/(/. NCrtex siiaxrlh; fioiit more or less elevated. 



(/. Antenna' alike in the sexes; fovea* of <>eei]nil ijuhesicnt : vor- 

 tex not earinate. 

 h. Thorax without crests or spiius; siihus of vertex deep; ely- 

 tra not punctate; h>ii,t;tli 2:2 mm. i lio.Ni ai is. 

 ////. 'i'iiorax with four basal spiiii's; sulcus of vertex shallow; 

 elytra very liiudy and sparsely punctate; length 1.9 lum. 



SIMPLEX. 



tjg. Antenuje unlike in the sexes, the tenth joint in male globose 

 and very large; in fenuile but one-half thicker than ninth; 

 fovefe of oeciput not pubescent; vertex earinate; length 

 1.7 mm. 61S. globosus. 



cc. Frontal margin not produced beyond the line between the bases of 

 auteuuje; tenth antennal joint of male very large. 

 /. Humeri blunt, rounded; fove;c of occiput not i)ubescent. 

 j. Reddish-brown : tenth joint in male with a small fovea at the 

 base; length 11 mm. (*)in. virgixi.e. 



jj. Black or ])iceous ; anteiuiii? and legs red; tenth juint foveate 

 on under side. 

 A'. Median sulcus of thorax obsoleti'; h'ugth l.f> mm. 



(i20. SPKKTI s. 



Ik. Median sulcus present ; l"ovea> on undiM- surface of tentli 

 Joint very large. dill. kov1':i(Okms. 



//. Humeri spinous; ftixca of occiput imliescent ; length *_' mm. 



/. r.asal joinl of male anteim;r jilunll.v tonlhed below; Imlii Jiiui 

 large, with a small, round, deeii pniicliire ;it base on iimh'V 



side. IIKNTICOI^LIS. 



//. liasal joiiU not toothed below; tenth joint not punctate be- 

 neath; Itlack. with reddish antenna' and legs. 

 hi. Elyti'a smooth, vertex not i>unct;itc; third J int of m.ale an- 

 tenna' longer than second or foui'th and sw(dlen on one 

 side. ((22. NIGRICANS. 



nnn. I'lyira indistinctly punctate; vertex with a centi'al trans- 

 verse ]MUicture; three basal juiiils of :i iibiin,-!' subeijmilly 

 decreasing in size. striatus. 



