48 



GKNEKAL OI5SERVATIONS ON THE GENUS SWAM.MEKDAMIA. 



of Zcllcrid Saxifrogtc, -wliicli was 

 formerly confounded with Sicam- 

 mcrdamia alpicclia, certainly does 

 feed on that identical plant Saxi- 

 fraga Aizoon. 



Swammcrdamia alpicclia, vit en 

 effet sur cette meme plante la Saxi- 

 fraga Aizoon. 



History of the Study of the Genus 

 Swammerdamia. 

 The first attempt to group the in- 

 sects of this genus together, merely 

 adding the allied Scythropia cra- 

 tcegclla, Avas in Zeller's Treatise 

 in the "Isis" of 1839; where three 

 of our present genus Swammcr- 

 damia and the solitary Scythropia 

 are placed as section J), at the end of 

 the genus Tinea. Illibuer had been 

 very near forming a natural genus, 

 the affinity between Ccesiella and 

 Ccrasiella not having been over- 

 looked by him ; but unfortunately he 

 ])laced along with them Anthylli- 

 della, which has no single character 

 in common with them. I have very 

 strong suspicions that HLibner was 

 acquainted with the larva; of both 

 these Sicammerdamia;, for, figured 

 on the same plate as his larva of 

 Ccesiella (which we refer to Ccra- 

 siella), is a larva under the name of 

 Spiniella, which, though not quite 

 correct (and therefore hardly quot- 

 able as a synonym), certainly makes 

 one think of the hawthorn-feeding 

 larva of Ccesiella. 



Stainton in his volume of (he "In- 

 Bcctu Britaiiuica" places these insects 



Histoire de I'Etude du Genre 

 Swammerdamia. 



Le premier essai de grouper ces 

 insectes ensemble, seulement en y 

 ajoutant I'espece voisine Scythropia 

 cratcegella, fut fait dans le mc'moire 

 de Zellerdans l'"Isis" de 1839; la 

 nous trouvons la section D. du genre 

 Tinea composee de trois especes de 

 notre genre actuel Swammerdamia 

 et I'liuique Scythropia. Pliibner a 

 ete sur le point de constituer un 

 genre naturel, puisqu'il a reconnu 

 la similarite entre Ccesiella et Cc- 

 rasiella, mais malheureusement il a 

 place V Anthyllidella avec ces deux 

 especes, dont elle ne possede aucun 

 caractere. J'ai des soup<;'ons que 

 Hiibner a counu les chenilles de 

 la Ccesiella et de la Ccrasiella, 

 ])uisqu'il represente sur une memo 

 planche une chenille deC(BS?e//a(que 

 nous rapportons a la Ccrasiella) et 

 une chenille sous le nom de Spiniella, 

 qui, quoiqu'elle ne soit pas tout a fait 

 juste (de sorte que nous ne pouvons 

 pas la citer comme syuonyme), nous 

 fait pcnser a la chenille de Taube- 

 piue Ccesiella. 



Stainton dans son volume des 

 "lusecta Britannica" a place ces in- 



