known to occur in Switzerland. 555 



14. medicaginis. Valais. 



15. peucedani. Rare. I have it from the vicinity of Neuville on the 



Lake of Bienne. 



16. Ephialtes. Valais ; particularly in several places between Louesch 



and Sierre, very abundant. 



17. onobrychis. In several meadows about Berne; not rare. Abun- 



dant and of great size and brilliancy in Valais. 



18. Fausta. Valais, about Sierre ; Jura, near Locle ; and, according to 



Fiiessly, near PfefFers. 



19. jucunda Meis. This new and undescribed species is smaller than 



Fausto : the antennae have a thick blunt club ; collar reddish white ; 

 back black; abdomen black, with red or white anus, rarely with 

 slight trace of a red band not reaching quite round on the under 

 side ; fore wings dark blackish blue, with carmine spots edged with 

 white, one at the base, two always confluent middle ones, an outer 

 crescent-shaped one, either confluent with a fifth, or scarcely sepa- 

 rated from it ; hind wings with the outer edge rather hollowed, car- 

 mine red with a rather strong blackish-blue border ; fringe reddish ; 

 under side similar to the upper, but all the colours faint : feet, above, 

 black ; below, white. First found by Professor Studer, near Kan- 

 dersteg. In August, 1818, I took it on the Anziendaz, at the foot 

 of the Diablerets, where it was abundant low down in the grass. 

 (Ochsenheimer says he has an indifferent specimen without an- 

 tennas ; and that it is apparently a new species, to be placed between 

 Fausta and his Faustina.) 



Sv'ntomis. 



20. Phegea. Plentiful in Valais, near Lax ; and near Breig, in descend- 



ing towards Louesch ; more abundant in the Tessin. 



Thy'ris. 



21. fenestrina. In May, near Berne, Zurich, &c, in meadows; rare. 



Seems to be double-brooded, as it is found in the Valais in August 

 also. 



Se v sia. 



22. «piformis. In May and June, early in the morning, on the stems of 



trees, especially Lombardy poplars [Populus dilatata], on which the 

 caterpillar feeds. (The fly almost invariably mounts towards the 

 tops of the trees soon after sunrise.) 



23. asiliformis. About Geneva. (Thun). 



24. spheciformis. Near Berne. I have found it sitting on the leaf of 



i?etula alba, in the stem of which the larva lives and undergoes its 

 changes. 



25. chrysidiformis. About Thun. 



26. prosopiformis. Jura near Locle, and about Geneva. 



27. echneumoniformis. Near Berne, and in Valais. 

 (cynipiformis. Between Thun and Berne.) 



28. andrenaeformis. Near Berne. 



29. culiciformis. Near Berne. 



30. mutillaeformis. Near Berne. 



31. /ormicaeformis. Near Berne. 



32. nomadaeformis. Near Geneva. 



33. /ipuliformis. About Berne. 



34. tenthrediniformis. About Berne and Geneva. 



35. philantiformis. Near Geneva. 



36. masariformis. Near BUren. 



(Meisner observes that, besides the above, it is probable that most or 



