386 INSECTS OF HERM. 



Psithyrus vestalis, Fourc. One, June 15th, 1889, W. A. L. ; one, August, 

 1904, E. D. M. 



Bombyx smithianus, White. Not uncommon. 



B. agPOPUm, F. Two. 



B. hortorum, L. One. 



B. Derhamellus, Kirb. One. 



B. lapidarius, L. Common. 



B. terrestris, L. Common. 



Apis mellifiea, L. No specimens were seen by Mr. Marquand before 

 the month of August. 



ICHNEUMONID^l. 



Ichneumon COnfuSOriuS, Grav. Several specimens captured in 1904. 



HepiopelniUS variegatorius, Pemz. Two specimens of this rare and 

 lovely species were taken by Mr. E. D. Marquand. In Mr. C. Morley s 

 recent work on the British Ichneumons, four localities only are 

 recorded for Great Britain ; one of them being Land's End in Cornwall, 

 where Mr. E. D. Marquand took it in 1884. On the Continent its range 

 extends from Belgium through Central Europe to Russia. 



Diadromus trogladytes, Grav. One. 

 Cryptus pereginator, Gr. One. 

 Pezomaehus analis, Fst. One. 



Campoplex ? Sp. One specimen, name not yet been ascertained. 



Pimpla instigator, Gr. Three, one being a very small specimen. 



P. examinatOP, Gr. Three. 



P. tupionellse, Gr. Two. 



P. Ornata ? Grav. One. 



Limneria ? Sp. Two specimens, not yet identified. 



CYNIPID^. 



Rhodites spinosissimse, Giraud. The galls formed by the larvae of this 

 species are common on the Wild Rose. (Rosa spinossissimaj 



Diastrophus rubi, Htg. The larvse of this species form galls on the 

 stems of the common bramble. 



TENTHREDIN^G. 



Tenthredoposis coqueberti, Kl. One very dark male. Not on the 

 Guernsey list. 



Selandria stramineipes, Klug. One. 



Athalia spinarum. One male and one female. 



Strongylogaster eingulatus, Fab. One. 

 Hoploeampa eratsegi, King. Two. 

 H. alpina. One. 

 Kaliosysphinga ulmi. One. 



DIPTERA. 



Ceeedomyia urtiese, Ferris. This species is known as the "nettle gnat." 

 It causes irregular shaped galls on the leaves and stems of the common 

 stinging nettle ( Urtiea Bioea) . 



BibiO marei (St. Mark's Fly), L. Common. 



B. hortulanus, L. Not uncommon. 



B. laniger, Mg. Not rare. 



Dieranomyia dumetorum, Mg. Several. 



