382 MANDIBULATA. COLEOPTEKA. 



able in colour and punctuation: legs luteous orrufescent, with the femora 



generally clouded with black. 

 Var. a. Thorax with from 5 to 7 black dots^ or obscure fuscovis marks : elytra 



hiteouS;, immaculate. 

 Var. (3. Thorax as before ; elytra each with a single black spot : — placed either 



at the shoulder^ the middle of the lateral margin, on the disc, towards the 



middle of the suture, the apex of the hinder margin, or towards the apex of 



the suture. 

 Var. y. Thorax as before : elytra each with two black spots, embracing 15 



combinations of those enumerated in var. /3. 

 Var. S. Thorax as before : elytra each with three black spots, consisting of 



the various combinations (18 in number) of the spots in var. (3. 

 Var. e. Thorax as before: elytra each with four black spots, composed of 15 



various combinations of the spots in var. [i. 

 Var. ^. Thorax as before : elytra each with five black spots, one or other of 



the six spots of var. /3. being obliterated. 

 Var. V- Thorax as before : elytra with six black spots ; placed 1 on the 



shoulder, 3 transversely in the middle, and two, also transversely, towards 



the apex : and it is the deficiency of one or more of these that constitutes all 



the numerous varieties and sub-varieties above-mentioned. 

 Var. 9. The same as the last, with the scutellum also black. — Obs. Some of 



the preceding varieties also occur with this character. 

 Var. I. Thorax as before: the spots on the elytra simply confluent, in various 



combinations of twos and threes. 

 Var. K. Thorax with the spots united : elytra with the spots for the most 



part confluent, in various degrees. 

 Var. X. The same, with the suture black. 

 Var. fi. The same, with the elytra black or fulvous, leaving 5 more or less 



united rufous or lutescent spots on the disc of each. 

 Var. V. The same, but the pale spots all distinct, and placed 2, 2, 1, the outer 



ones attached to the lateral margin. 

 These two last varieties form, with their innumerable subvarieties, the Co. 



instabilis. — Steph. Catal. 233. No. 2377. 

 To enumerate further varieties of this eminently Protean species would lead to 



no good end, as the above general definition embraces all the combinations 



that can occur ; I have, therefore, not followed the methods employed by 



Illiger and GyUenhall, of describing each variety (of which I possess above 



300), as they are manifestly defective. 



Extensively common on oaks and lime-trees throughout the 

 metropolitan district in June. " Raehills, abundant.'' — Rev. W. 

 Little. "Bath, &c."— C. C. Bahingto7i, Esq. "Newcastle, 

 Tynemouth, &c." — G. Wailes, Esq. " Swansea." — L.W. Dillwyn, 

 Esq. " Weston."— i?ey. A. H. Matthews. " Cardew-mire."— 

 T. C. Heysham, Esq. 



