5854 Insects. 



Psocus maculipennis is a new species. 



Psocus nigricornis, P. phaeopterus, Id. p. 127, and P. abdominalis, 

 constitute a new species, for which the name of nigricornis must be 

 adopted. 



Psocus nigricans = P. domesticus, B. 



Psocus dubius is a new species. 



Atropos pulsatorius —P. pulsatorius of Linneus. 



Atropos fatidicus. The specimens thus named are the larva and 

 pupa of a species of Psocus. 



Raphidiina. 



Raphidia ophiopsis, Id. p. 130, and R. megacephala = R. media 

 of Burmeister. 



Raphidia londinensis = R. Schneiderii of Ratzeburg. 



Raphidia affinis, Id. p. 131, and H. maculicollis = R. ophiopsis of 

 Linneus. 



Raphidia confinis = R. xanthostigma of Schummel. 



Sialis lutarius, Id. p. 132 = Heraerobius lutarius of Linneus. 



Perlina. 



Perla marginata, Id. p. 135 = P. bipunctata of Pictet. 



Perla cephalotes, p. 136 = P. marginata of Pictet. 



Perla bicaudata = P. microcephala of Pictet. 



Isogenus Nubecula, p. 137 = P. Nubecula of Pictet. 



Chloroperla fuscipennis, p. 138, C. lateralis, C. media, p. 139, C. 

 venosa and C. rufescens = P. Rivulorum of Pictet. 



Chloroperla flava and C. pallida = Chloroperla apicalis of Newman. 



Nemoura nebulosa, p. 140, N. fuliginosa, p. 141, N. pallida, N. cru- 

 ciata, N. affinis and N. annulata, p. 142, constitute together a new 

 species, N. nebulosa. 



Nemoura pusilla, p. 142, and N. luteicornis = N. variegata of 

 Pictet. 



Nemoura pallipes, p. 142, and N. furaosa, p. 143, constitute a new 

 species, N. pallipes. 



Nemoura pallicornis, p. 143, and N. nitida, constitute a new spe- 

 cies, N. pallicornis. 



Nemoura cambrica, p. 143, is a new species. 



Nemoura fulvicollis is a new species. 



Nemoura variegata, p. 144 == N. nebulosa of Pictet. 



Leuctra geniculata, p. 145, is a new species. 



