201 



a\ Head posteriorly emarginate. 



Lengtli 1 -5-2 mm ^>^- dichromn, p. 20i. 



//. Heacf posteriorly not emarginate. . 



Length 2-5-3 mm M. pharaoms. p. 20J. 



i-. Head, thorax and abdomen more or 

 less brown. 

 n-\ Antennte comparatively long,scape 



reaching beyond top of head : . 



sides of head yery convex ...... M- Jfnrjh p 2Ud. 



b\ Anteuuie shorter, scape not attain- 

 ing top of head ; sides of head 

 stmghter, not so convex. 

 a\ rro-mesonotum very convex, not 



margined at the sides M- schurn, p. 20-3. 



h'. Pro-mesouotum flatter, distinctly 



finely margined at the sides . . M. icrovfjhtoni, p. -L4. 

 v. Pro-mesonotum short, about as broad 



as Ion" -'■••y" '1 



i. Seen froni above 2nd node not broader 

 than 1st ; nodes subequal. 

 a Head in front distinctly broader than 



teriorlv ' niaicum, p. 2Uo. 



6'. HeTd as broad posterioi'ly as ii'i "front . . 3/. glyciphilum, p. 206. 



B. Head not rugulose and opaque, but more or 

 less smooth and shining. 

 a. Head nearly square, almost as broad as ^_^^^ 



Ion"" 



h. Head rectangular, distinctly longer than 



broad. 

 a'. Antennfc 11-joiuted. 



rr. First node of pedicelhigher than 2nd 



node, cuneiform ^l^- onentale, p. 20, . 



ft-^ Fir.>-t node of pedicel not higher than 



2nd node, not cuneiform, globose . . 3/. r^^o^iH*', p. -0!5. 

 />'. Anteuufe 12-joiuted. _ 



rt-. Scape of antennte extendmg beyond 

 top of head. 

 a\ Thorax convex above, not sub- 



margined ^^^- *^^'.^/^'' P- -^^• 



b\ Thorax somewhat depressed and 



fiat, laterally submargined 3/. destructor, p. 20.). 



/;-. Scape of anteunte not extending be- 

 yond top of head. 

 (vK Second node of pedicel not broader 

 than 1st node. 

 a*. Head and thorax dark chestnut- 

 brown, abdomen black. Length 



1-5-2 mm -^^- m^mitum. p. 210. 



?/. Head and thorax reddish yellow, 

 abdomen dark brown. Length 



l)-o-3 mm M.iiracillnniim, p. 210. 



;^3_ Second node of pedicel broader 



thau 1st node. ^r j, ■ i .in 



«'. Length 1-5-2 mm 3/. /?onoo r., p. 21 . 



i'. Length 3-3-: mm !/• /«^^»"^/f, P- ^H- 



