INSECTS OF SARK. 187 



The Aculeate- Hymenopt era (Bees, Wasps, &c.) include 

 four interesting species, Nysson mterrwptas^ SaJins ohtusiven- 

 tris, Andrena. hiimilis and Nomada ferruginata, all rare or 

 local in England, and none of wliich have been taken in any 

 of the other islands. The most interesting of the Ichneii- 

 monidce are Ichneumon ridihundns^ variety annulatus^ a well- 

 marked variety which has not yet been taken in Britain 

 although several specimens of the usual type have occurred, 

 and Acroricnns niacrobatus, a local species found only in the 

 extreme South of England. The following species, mentioned 

 in the list, have not been recorded for Guernsey. 



Lepidoptera. Coleoptera. 



Argynnis aglaia. Cetonia aurata. 



A. paphia. Pterostichns striola. 



Sesia apiformis. 



^ ,1 . n Hymenoptera. 



Xanthia navago. 



HeliotMs armiger. ^^^i^^s obtusiventris. 



AcidaHa subsericiata. Nysson interruptus. 



Andrena humilis. 



Hemiptera. Nomada f erruginata. 



Plagiognathus viridulus. Ichneumon ridibundus. 

 Idiocerns popiili. var. annulatns. 



Eupteryx atropunctatus. Acroricnus macrobatus. 



AUantus vespa. 



Diptera. 



Neuroptera. 



Limnophila vittatns. 



Halesus digitatus. Pachygaster atra. 



Rhyacophila dorsalis. 



R. munda. 



In conclusion I have great pleasure in acknowledging 

 the kind assistance rendered in the determination of species 

 by the Kev. E. N. Bloomfield, M.A., F.E.S., Mr. Edward 

 Saunders, F.R.S., &c., Mr. Claude Morley, F.E.S., and Mr. 

 E. A. Butler, B.Sc, F.E.S. 



LEPIDOPTERA. 



RHOPALOCERA (Butterflies). 

 PIERIDiE. 



PiePiS bPassiese, L. Abundant. 

 P. Papse, L. Common. 

 P. napi, L. Fairly common. 



Colias edusa, F. In some seasons abundant, in others very scarce. 

 C. hyale, L. Not common usually, but in 1868 I found it in great abun- 

 dance. 



