ON THE BOTANY AND ENTOMOLOGY OF ICELAND. oad 
11. Pimpla sodalis. 34. Prosacantha punctulator. 
12. Bassus festivus. 35. Platygaster splendidulus. 
13. ,, _‘ carinulatus. 36. af opacus. 
14. Tryphon zemulus. 37. Diapria aptera. 
15. - hzematopus. 38. Ephedrus parcieornis. 
16. es instabilis. 39. Trioxys compressicornis. 
17. Atractodes bicolor. 40, Monoctonus caricis. 
18. es tenebricosus. 41. Praon volucris. 
19: 5 ambiguus. 42. ,, peregrinus. 
20—24. 5 unnamed species of 43, Aphidius cingulatus. 
Chalcididee. 44, Hf restrictus. 
25. Emphytus grossularie. 45. Microctonus intricatus. 
26. Nematus conductus. * 46. Periclitus islandicus. 
27. i Staudingeri. 47. Alysia conspureator. 
28. = coactulus, n. sp., 28. 48. Orthostigma pumilum. 
29. a suavis. 49. ia exile. 
30. 3s variator. 50. - distracta. 
31. Enccelia simulatrix. 51. Dacnusa pubescens. 
32. Xystus obscuratus. 52. “s confinis. 
33. Lagynodes rufescens. 
Diptera.—To proceed to the Diptera. Staudinger re- 
gards them as constituting over one-third (110) of the total 
number of species, 11 are described by Olassen and 
Povelsen, and 22 enumerated in Paijkull’s appendix. Some 
of the kinds that I captured are, as a matter of course, the 
same as those indicated in the two last-named lists. 
Syrphide appeared to be most varied in kind, and most 
abundant at Thingvellir, and doubtless the abundance of 
flowers there had something to do with their putting in so 
plentiful an appearance. I am under the impression that 
when all this group is correctly worked out and named, I 
shall be able to contribute a few additional species to former 
lists, including a black var. of Sceeva pyrastri, that I found 
in the interior of Akureyri Church, in which edifice were 
also some hundreds of Calliphora greenlandica, the greater 
art dead and strewing the window sills and floor, but many 
still buzzing about the panes. This species is comparatively 
rare with us, and on further examination of about a couple 
of hundred specimens that I brought away, I found them to 
include a few of Musca azurea, and Sarcophaga mortuorum, 
as well. Helophilus pendulus, that fly so prettily marked, like 
all others of its tribe, occurs at Reykjavik, Engey, Thing- 
vellir, and Eskefjord too, but its geographical range, like 
that of Bombus hortorum, would appear to be limited to the 
south, and to be confined to the same localities as that 
insect. It is to be met with on boggy soil in the vicinity of 
a well, in the middle of Vatnsmyri moor, Reykjavik, more 
abundantly than elsewhere. Tipulide, so far as my observa- 
VOL. XXIV. S 
