110 THE ENTOMOLOGIST. 



prepared by him for fasc. 3, vol. ii. of the ' Bulletin de la Societe 

 lepidopterologique de Geneve,' of which publication Dr. Blachier is 

 editor, and by whose and Dr. Beverdin's kind permission I was 

 permitted to reproduce it in the ' Entomologist.' Dr. Blachier 

 himself did not collaborate with Dr. Reverdin in the authorship 

 of these valuable articles ; nor did M. Rehfous, and his bionomic 

 observations are supplementary to Dr. Beverdin's own studies 

 of the wing characters, &c, of the several species. — H. Rowland- 

 Brown. 



Further Notes on Tapinostola concolor. — Further to my 

 notes (Entom. vol. xlv. p. 256) on the ovipositing of the above 

 species. The ova referred to were laid June 23rd, 1912, and the 

 bulk of them were hatched by 8 a.m. on July 10th following, the dark 

 heads of the larvae showing through the envelopes of the ova some 

 twelve hours before emergence. A few larvae were very actively 

 crawling about all over the boxes in which they were confined, but 

 the majority of them were secreted in the folds of the withered leaves 

 on which the ova had been deposited ; the empty egg shells did not 

 appear to have been utilised as food. The young larvae, immediately 

 after emergence, measured about -^ in. in length, their colour being 

 yellowish white ; head and plate brown, black above the anal flap ; 

 when disturbed they became exceedingly active, and dropped when 

 touched with a fine camel hair. The larvae, to the number of forty, 

 were placed in three separate glass tubes, each tube 4 in. long by 

 f in. diameter (about equal numbers of larvae to each tube), and 

 in each tube were placed two 3-inch lengths of Dactylis glomerata, 

 two lengths of reed tips, and two lengths of Calaviagrostis epigeios. 

 After introducing the larvae to the tubes they were secured by closing 

 the mouth of each tube with a layer of clean blotting-paper under a 

 piece of muslin, both being held in place by a rubber band round the 

 tube. The three tubes were then put in a glass jar, and placed in a 

 shady corner of the garden ; visited thirty-five minutes later, all the 

 larvae had disappeared from view. No perforations were revealed by 

 a cursory examination, but a closer scrutiny showed that most of 

 the larvae were ensconced between the stems and leaf sheaths of 

 G. epigeios, several having selected D. glomerata and one or two reed. 

 Two perforations could be seen in the stems of C. epigeios, and one in 

 D. glomerata, but none in the reeds, and these were possibly used 

 merely as temporary places of concealment. The covers of the tubes 

 containing the larvae were then again tied down and left undisturbed 

 until the evening. At 9.30 p.m. they were again visited with a lamp, 

 and several larvae were seen to be crawling about the tubes, possibly 

 those who had not in the first instance selected C. epigeios, and who 

 now found the stems already tenanted. Transparent patches were 

 showing on the stems of C. epigeios and D. glomerata, where the 

 green matter had been eaten away, showing that feeding had 

 commenced, but so far as could be ascertained the reed tips had not 

 been touched. Frass could be seen protruding from several of the 

 perforations in the epigeios and glomerata. 



On the following days (July 11th and 12th) the larvae remained 

 concealed by day, but when it became dusk several were always to be 



