Eittomolo(jical Society. 7453 



"The females of these three species remaiu within the larva-case. 



"P. intermediella. Found on stems of fir-trees at Black Park, in abundance, in 

 June. 



" P. roboricolella. The larva-cases are found on various trees at Hampstead. 



'* P. ? Apparently a very distinct species, allied to P. roboricolella, but the 



wings much more rounded, as in P. radiella.'' 



Mr, Mitford likewise exhibited a fine specimen of Acrolepia marcidella, taken in 

 his garden at Hampstead. 



Mr. Bond observed that the two or three examples of this species hitherto taken 

 in this country were much wasted. 



Dr. Knag;gs announced that the Noclua exhibited and described by him at the 

 Meeting of the Society on the 1st of October last as Nonagria? Bondii, had been pro- 

 nounced by M. Guenee to be a species unknown to him. 



Mr. Waterhouse exhibited three species of Scymnus, viz., S. discoideus, and two 

 others which he thought might probably be included by authors among the varieties 

 of that species, but which have different habits and present distinguishing peculi- 

 arities. With regard to S. discoideus, he observed that all, or almost all, authors 

 stated that the insect was found on, or in the immediate neighbourhood of, fir trees: 

 he had examined a large number of specimens having this habitat, but he did not find 

 that amount of variation in colour which had been attributed to the species ; on the 

 contrary, a large number of specimens collected by himself and Dr. Power, from fir 

 trees, presented no marked varieties : they could all be comprised in the following 

 description : — 



Oval {slightly oblong), black ; elytra thickly and rather finely punctured, the punc- 

 tures of unequal size; fulvous-red, with the suture narrowly edged with dusky, 

 and sometimes likewise the base of the elytra, as well as the outer margin on 

 the basal half ; antennse, jialpi and legs more or less dusky (never entirely 

 pale) ; thorax with the sides very generally rufescent, especially towards and 

 at the anterior angles. Boily beneath rather strongly but by no means thickly 

 punctured ; the chest with a distinct longitudinal grove. 

 The dark edging to the suture and other parts of the eljtra is very commonly ill- 

 defined, and by no means distinct. S. atriceps of Stephens is founded upon an imma- 

 ture specimen of this species. The other two insects were found in marshy situations 

 in localiiies far remote from fir trees. The first of these Mr. Waterhouse distin- 

 guished from S. discoideus by its somewhat smaller size; less ample, and posteriorly 

 somewhat acuminated elytra ; the more dense and fine puncturing of the under parts; 

 the constantly uniform testaceous colour of the legs, the shorter and more inflated form 

 of the femora; the excessively indistinct or obsolete pectoral grove; and, lastly, by 

 the colouring. Here the black on the elytra usually covers as much surface as the 

 red ; in most instances it completely margins each elytron, is broad at the base of the 

 elytra, and on the suture it forms a band which is very broad anterioriy, and gradually 

 contracted in width towards the apex of the elytra, but very commonly it is more or 

 less expanded for a short distance near the middle of the suture. To this insect Mr. 

 Waterhouse applied the name S. iMulsauti: it is the S. limbatus of Stephens's col- 

 lection, but not of his description. Mr. Waterhouse stated that he had examined 

 upwards of thirty specimens found at Southend, Deal, Holmbush, &c. 



