TiiEiTSCHKE has formed a large and incongruous genus, which 

 he has called Larentia, — a name I shall reserve for his type 

 [Geom. cervinata Hiib., the G. clavaria of Haw.) and its con- 

 geners. The typical species of our genus is the fourth of 

 Treitschke's Larentise ; but he neither notices the Geom. prce- 

 J'ormata nor the G. imhutata of Hiib. that I can find : and 

 G. ccesiata and G.Jlavicindata of Hiib. are more nearly allied 

 to G. Alcheinillata Linn. 



I should have adopted Mons. Dupouchel's name, but I am 

 uncertain what species he intends to include in his genus 

 Anai'tis. 



Larissa comprises the following British insects. 



1. L. plagiata Linn. — Haw. 318. 8. — duplicata Fab. — 



Don. 7. 233. 2. 

 This handsome moth is not uncommon amongst Fern, espe- 

 cially in chalky districts. The beginning of June and Sep- 

 tember I have found it in Norfolk ; at Coombe Wood, Surrey ; 

 and Linton, North Devon : and Mr. Dale observed it the end 

 of June in Scotland. The Caterpillar feeds upon Hypericum 

 perforatum, 



2. L. praeformata Hiib. Geom. pi. 103./ 532, 533. 



The only specimen I have seen of this fine moth I believe I 

 captured by Coombe Wood. It may be distinguished from 

 the foregoing species by its larger and less acute wings, and 

 by their richer colour : and the waved bar near the base, and 

 that arising at the apex, are almost as strong as the two cen- 

 tral ones ; so that it is 5-barred. 



3. L. imbutata Hub. — Curtis Brit. Ent. pi. 324. 



Mr. Dale had the good fortune first to discover this beau- 

 tiful moth amongst some heath, as we were walking from In- 

 versnaid to Loch Katrine, the 8th of August, 1825: it has 

 since been taken by Mr. R. Wood near Manchester, to whom 

 I am indebted for some lovely specimens. 



4. L. petrata ii/aw. 344.84. — Hiib. Geom. 21. 113. — vir- 



garia Borkh. 



This species perhaps will associate better with Geom. lignata 

 and lineolata Hiib. It is found the end of May and beginning 

 of June in great abundance amongst Fern. 



The plant is Campanula 7'otundifolia (Round-leaved Bell- 

 flower). 



