LYGID.E. 453 



black in the middle, more or less distinctly brown ; 3rd and 4th 

 brown, base and apex of the 3rd piceous or black, extreme base 

 yellow. Rostrum yellow, tip black. 



Thorax. Pronotum black, thickly and finely punctured ; the collar 

 in the centre, a more or less broad transverse band behind the cal- 

 losities, and the posterior margin narrowly, yellow; or the entire 

 disk greenish-yellow ; sides yellowish ; callosities brown or black ; 

 hinder angles with a black or brown spot, and frequently within the 

 posterior margin a more or less distinct transverse brown band. 

 Scutellum yellow, with a triangular black spot in the middle next the 

 transverse channel ; or black or brown, the basal angles, apex, and 

 frequently the sides, yellow. Elytra ; Clavus finely wrinkled trans- 

 versely ; inner margin piceous ; disk, excepting the apex, more or 

 less piceous or black, especially towards the inner margin ; Corimi 

 thickly and finely punctured ; anterior margin narrowly black ; next 

 the apex a more or less distinct transverse brown or black band, 

 frequently extending to the anterior margin, its inner edge assuming 

 a A-shape ; Cuneus ; apex broadly black or brown ; Membrane gray, 

 faintly iridescent ; below the apex of the inner cell a short blackish 

 streak joined, almost at right angles, to another proceeding from the 

 middle of the anterior margin; cell-nerves yellow exteriorly and 

 interiorly, at the apex margined with blackish. Sternum piceous or 

 black. Legs; coxae and. fulcra yellow; thighs yellow; with 2 

 black or brown rings next the apex, the inner one broadest; fre- 

 quently on the 1st and 2nd pairs the rings are wanting or replaced 

 by 2 spots on the upper or undersides ; tiHae yellow, generally with 

 a black or brown streak on the outside at the base, and with short, 

 black, somewhat spinose hairs ; apex narrowly brownish ; tarsi yel- 

 lowish ; 3rd joint and claws black. 



Length, 2 2| lines. 



A very common species everywhere on TTmbellifercB in May, June, 

 July, and August. 



Contrary to other authors, Dr. Eieber has separated 0. Kalmiifrow. 

 O.flavovarius, principally because the band at the apex of the corium 

 in the latter extends to the anterior margin, whilst in the former it 

 does not reach it. The only other differential character appears to 

 be the more elongate form of O. Kalmii, but we have no proof of their 

 being distinct. 



