THE LEPIDOPTERA OF THE STAEFA BOGS IN 1909. 79 



on the underside of the forewing was extended towards the margin in 

 the form of a wide pale band containing five ocellated spots, of which 

 the third and fifth were the smallest — the usual pallid outer rings of 

 the spots being seemingly greatly extended to help to form the pale 

 band (ab. riv(jata); the underside of the hindwing is normal except that 

 the seven ocellated spots are exceptionally widely-ringed with pale. No 

 other example approaches this form, and, although several have the pale 

 transverse line crossing the underside of the forewings well-developed 

 and somewhat extended towards the ocellated spots, in no other does it 

 form a band so as to include the spots. 



On our previous visit we made acquaintance with another species 

 which we had never met in nature before. This was Anthrocera 

 viciae [meliloti). So busy were we with the butterflies that were so 

 numerous and abundant, that we paid little attention to the Anthro- 

 cerids, and, as a result, did not collect more than a dozen examples, 

 and these not in good condition (see vol. xxi., p. 248), as reminders that 

 they were there. In writing up our reminiscences of the bog, 

 the mind did not specifically dwell on these examples, although Mr. 

 Muschamp had called our attention to the peculiarl}'- small forms that 

 lived there. We had casually glanced at some examples that we had 

 no doubt were A. trifolii, but failed entirely to grasp that we were 

 dealing with two species, one of which, known well enough in the 

 collection, was quite unknown to us in nature ; this species, as noted 

 above, was A. viciae, and it was not until we were moving the specimens 

 from the box in which we had packed them that we appreciated the 

 blunder that we had made in our short notes {antea, vol. xx., pp. 247, 

 248) which want cancelling altogether, but will, unfortunately, remain 

 an excellent witness against us of being " too clever by half." The 

 species there noted as A. trifolii-tninor is A. viciae and theab. rufiicincta 

 is the well-known ab. stentzvi, Frr. (see A Nat. Hist. Brit. Lep., i., 

 p. 456). This year we nearly fell into another pitfall, one, at any rate, 

 that has done us good by pulling up our knowledge, now alas, getting 

 rusty, of these interesting insects. The fact is there are four of our 

 British Anthrocerid species living almost on the same ground on the 

 Staefa bogs. The first is Anthrocera viciae var. biu/lossi, Duponchel, 

 originally described, as we have already noticed {A Xat. Hist. Ih-it. Lep., 

 i., p. 457), from specimens that came from this very district (Zurich). 

 (2) Anthrocera trifolii, inclining to a somewhat small race of the 

 paliistris form. (3) A. /ilipendiilae interesting enough in their bright 

 colour but certainly not A. hijipocrepidis, Stphs., as we had thought 

 might be the case. These all occur in the grassy openings of the 

 woods all along the upper edge of the bog, and extend into the nearer 

 parts of the bog itself, where, however,^, trifolii is more frequent than 

 on the banks. Much farther along, on the banks under the wood and 

 beyond the bog itself, a great mass of what we believe was Vicia cracca, 

 mixed with flowering thistles, was found to be covered with (4) Anthro- 

 cera lonicerae and A. filipendidae, the former quite separate and distinct 

 from A. trifolii,vfhich. did not appear to occur just here, the former being, 

 indeed, wonderfully localised ; nor did we among our samples get a speci- 

 men of A. lonicerae the previous year; whilst (5) a single A. tramalpina 

 added yet another species to this prolific district. Out of the clumps 

 of undergrowth here also, we disturbed several Toxocatnpa pastinum, a 

 species that lives on the same foodplant with A. lonicerae in the woods 



