1906] 163 



locality. Beosus luscus, F., was fairly common at one spot on the seaward side of 

 the golf course, while on the landward side amongst some dwarf plants of Trl folium 

 repens I found a single specimen of Brachvsfeles parvicorni.t, Costa. Of other 

 Ilemiptera the best were Aphanus lynceus, F., and Pseudophloeus falleni, Schill. 

 Amongst the clover plants, where the Brachysteles occurred, there were a few speci- 

 mens of Apion IsevicoUe, Kirb. ; they were lying about on the sand under the 

 plants with legs tucked up, apparently benumbed by the bitter east wind that was 

 blowing.— E. A. Butler, 53, Tollington Park, N. : June I2ih, 190B. 



A. J. SiLFA'ENius : Beitriige zur Metamorphose der Trichopteren (Acta Societatis 

 pro Fauna et Flora Fennica, 27, No. 6 ; Helsingfors, 1905). Zur Kenntnis der 

 Trichopteren-fauna von Tviirminne (Zeitschrift fiir Palmen, No. 14; Helsingfors^ 

 1905). Trichopterologische Untersuchungen : I. tJber den Laich der Trichopteren 

 (Acta Soc. pro Fauna et Flora Fennica, 28, No. 4 ; Helsingfors, 1906). 



Those who are acquainted with the recent writings of such authors as Klapalek, 

 Silfvenius, Thienemann, Ulmer, Needham, Betten and others, on the life histories of 

 aquatic Neuroptera (in the broad sense) must be aware that progressive work of this 

 kind is not at present confined to students of Lepidoptera. The work accomplished 

 in the Trkhoptera, for example, has been enormous, and the keenness with which it 

 has been pursued can alone account for such excellent results in dealing with 

 animals whose study obviously presents much greater diificulties than those presented 

 by terrestrial forms. 



In the first-mentioned of the above papers, Silfvenius in a memoir extending to 

 168 pp., concludes his seventh contribution to the knowledge of the Metamorphoses 

 of the Trichoptera of Finland. 



In these papers the metamorphoses of 101 species are more or less thoroughly 

 described, in many species an account of the larva, the pupa and the case being 

 given. The number of Finnish species, and the number of these species of which 

 the metamorphoses are known are stated thus : — 



SPECIES. METAMORPHOSES. 



Phryganeidx 14 14 



Limnophilidre ... 78 42 



Sericostomatidae 10 ., 7 



Leptoceridse 32 20 



Hydropsyckidx 31 22 



Rhi/acophilidas 6 4 



Eydroptilida^ 19 12 



190 121 



It will be seen that the earlier stages of a very large proportion of the species 

 in which these stages are known, have come under the observation of the author. Of 



O 2 



