-1:76 [August, 



2. Entirely testaceous above, the breast sometimes infuscate. — Ashtead [<?], Paisley 



3. Testaceous, the head and breast infuscate or black (0. nigriceps, Jj&tr., 0. mespili, 



Lac). — Ashtead, Gravesend, Paisley [ $ ]• 



4. Bluish-green, the elytral humeri, and sometimes the sides of the prothorax, 



rufescent or fulvous (0. humeralis, Latr.). — Ashtead and Paisley [<?]. 



5. Bluish-green, the sides of the prothorax broadly, the base of the femora, and the 



tibiae, fulvous.-^Ashtead [<?]. 



6. Entirely bluish-green above (O. ccerulescens, Duftschm., and 0. nematodes, Lac). 



— Ashtead and Paisley [J]. 



Eight varieties are enumerated by Weise, one only of these, his 

 form c, not being known to me as British. It is black, with the 

 elytra testaceous, the lateral margins excepted, or entirely piceous 

 (O. nigricollis, Oliv,, and O. marginella, Duftschm.). Nos. 3 and 6 re- 

 present the prevailing form in the south of England, No. 3 being 

 the $ , and No. 6 the ^ , these constantly occurring together. The 

 males, therefore, are usually bluish-green, and the females testaceous, 

 the latter sometimes having a slight greenish lustre on the upper 

 surface. The legs are constantly pale in the female. Of the testa- 

 ceous form, 2, one male only has been seen. The Paisley specimens 

 were sent to me in 1877 by Mr. Dunsmore. 



0. CEEASi, Linn. 

 This species appears to be equally variable in colour on the con- 

 tinent, but amongst the specimens in my British collection four forms 

 only are to be found ; these are : — 



1. Above and beneath testaceous (O. chlorotica, Oliv., O.fulvicolUs, Panz.). [<?]. 



2. Testaceous, the suture of the elytra at the base and the under surface infuscate 



or black (0. lineola, Lac). [(??]• 



3. Testaceous, the apex of the elytra and the under surface blackish (0. melanura, 



Fabr.). [<?]. 



4. Black, the prothorax and the front of the head rufo-piceous, the legs obscure 



ferruginous (0. glalrata, Fabr.). [ ? ]. 



The specimens belonging to No. 2 are from Coleford and Matlock, 

 and that of No. 4 is also from Matlock {Garneys). The others are 

 not labelled with any definite locality. I am unable to say, from 

 insufficiency of material, whether the sexes of this species usually 

 differ in colour, like those of 0. lineola ; but it is not likely to be the 

 case, as the darkest example seen {0. glahrata) is a female, and all the 

 males are more or less testaceous. 



Horsell, Woking : 



June, 1898. 



