114 Mr. J. Curtis on some nondescript or imperfectly 



to and the size of O. cesjntana, Hiib.," an opinion which has re- 

 cently been confirmed by Mr. Doubleday. 



19. 9. O. cespitana, Curt. ib. Mr. Doubleday being satisfied 

 that this is not Hiibner's insect, but one described in the ' Isis * 

 by Mad. Lienig as T. palustranaj my name must be transferred to 

 the preceding species. I regret to see it separated from Ortho- 

 tcjenia and made one of a new genus called Mixodia by Guene, 

 for surely it cannot be necessary to form a genus to receive a 

 species so closely allied to 0. cespitana, that one may be mistaken 

 for the other : sections are infinitely better, and to these we must 

 come at last, when we have been overwhelmed with the burden 

 of generic nomenclature. This extravagant rage for making 

 genera has however had its use, having led to a refinement of 

 discrimination which has been most beneficial in correcting the 

 slovenly habits of investigation that attached even to the mag- 

 nates of the last century and somewhat later. 



20. Genus 963, 6. Cochylis marmoratanay Curt. Brit. Ent. 

 ^ol. 491. The species since described under the name of luteo- 

 lana by Stephens, and figured by Wood, pi. 37. f. 1140, appears 

 to be a variety of my marmoratana. 



21. Genus 967. Peronea, Curt. Brit, Ent. fol. & pi. 16. Since 

 this genus was published in 1824, prodigious strides have been 

 made in entomology, and large quantities of these Tortricidce have 

 been bred by Mr. Doubleday, who considers a vast number of 

 the species merely varieties of two types, viz. T. cristana, W. V., 

 and T. hastiana, Linn. If Lepidoptera vary to such an extent, 

 it may be well asked, ' What is a species V 



Family Crambid.e. 



22. Genus 991^. Anerastia, Zell. ; Abraxes, Guide. 



2. Farrella, Curt. Cab. Expanse 11 lines ; and similar in form 

 to A. Marisci or T. lotella, Hiib. pi. 48. f. 334. It is whitish, 

 the horns are very slender and ficsh-coloured, as well as the back 

 of the thorax : superior wings narrower than in lotella, gray 

 freckled with brown ; the costa brown, with a white streak from 

 the base to near the tip, and a suffused space of ochrcous flesh- 

 colour along the centre ; before the middle, on the inner margin, 

 is a black dot, and three more beyond the middle in a curve, one 

 being on the costa, another on the inner edge of the white streak, 

 and a third below it : inferior wings pale silky smoky lilac. 



lor a specimen of this pretty and distinct species I am in- 

 debted to Mr. H. F. Farr : two or three were taken at the North 

 Lighthouse, Lowestoft, the beginning of June 1840. 



23. Genus 993, 9^. Phycita bilineata, Curt. Cab. It is the 



