187:!.] 2G5 



neath bi-ovni. Face yellow, on each side of the ceuti-e of the anterior margin a 

 blackish fovea. Clypeus brown. Cheeks : apex brown, enclosing a yellow spot 

 next the base of the clypeus. JE^es black. Rostrum piceous. 



Thorax : pronotum black anteriorly, and with five longitudinal depressions ; lateral 

 margins narrowly M'hitish ; posteriorly soi'did yellowish-white. Scutellum dark 

 brown, apical half paler. Elt/tra dark pitchy -brown ; clavtis — Ist nerve whitish 

 at the apex ; cerium — anterior margin with a longish wliite streak beyond the 

 middle, joined to a transverse wavy white streak, sometimes intei-rupted, and 

 reaching the inner margin ; before the centre of the disc a somewhat reniform 

 white spot ; inner margin and apex narrowly white. Sternum pale yellow. 

 Lecfs brownish-yellow ; thighs — 1st pair brown, with one or two short, pale, 

 longitudinal streaks and spots, extending from the base to beyond the middle ; 

 2nd and 3rd pairs pale, apex brown ; tib'icB — 1st pair dark brown or pitchy ; 

 2nd pale, base brown, apex dark brown ; 3rd pitchy-brown, darkest at the apex, 

 spines brown ; tami of all the pairs pitchy, base of the 1st joint nari'owly 

 clear brown. 



Abdomen beneath black, sides of the 5tli segment with a short, transverse whitish 



streak ; posterior margin of the 6th yellow. Connexivum beneath black, outer 



and inner margins narrowly yellow ; genital plates of the ^ brown. 



Length, If lines. 



This species is somewliat broad for its size, has a ' squat ' appear- 

 ance, and is unlike any of the varieties of A. rusticus (which it I'esem- 

 bles only in its dullness) known to me. 



I possess a single (^ example, taken by myself either at Eltham 

 or Bexley on 26th July, 1863. 



AcocEPHALiJS POLTSTOLTJS, Fieb. 



Dark or pitchy-brown, slightly shining. 



Head yellow ; in front spotted with brown, the spots minute and more or less united ; 

 down the centre, from the base to about the middle, is a slightly elevated, very 

 fine brown line. Face and cheeks yellow, the former with an extremely nari'ow 

 dark brown or pitchy margin. Antennm : two basal joints white. Eyes 

 pitchy-black. 



Thorax : pronotum yellow, very finely wrinkled transversely ; posterior half dark 

 brown. Scutellum brownish-yellow, basal angles and a central line dark brown. 

 Elytra dark or pitchy-brown ; corium — finely shagreened between the nerves ; 

 anterior margin at the base yellowish, and with two white spots of irregular 

 shape, placed one before and one beyond the middle ; 4th nerve with two white 

 spots in a line with those on the anterior margin ; apex white. Sternum yellow. 

 Leffs yellow ; tiiicB — 1st and 2nd pairs at the apex broadly black, 3rd brownish, 

 apex black ; tarsi pitchy. 



Abdomen beneath pitchy-brown ; genital plates of the S pitchy-brown. 



Length, 1| lines. 



The white spots on tlic elytra more resemble those on A. inter- 

 ri/pti/s than any of the varieties of A. alhifrons, to which last insect 



