bo MONOGRAPHIA ^GERIARUM ANGLI.^. 



VI. Palpi indistinct!, fere nulli : antlia nulla: an- 

 tenna? breves, setacese, a basi ad medium 

 bipectinatcB: abdomen baud barbatum : alae 



semi-hyalinae Zbuzerid^e, Ncwm. 



Vll. Palpi distincti, triarticulati : antlia nulla: 

 antennae mediocres, sub-pectinatae : abdo- 

 men baud barbatum CossiD^. Newm. 



These families correspond with the five genera described by 

 M. Latreille in the Regne Animal, under the names Seaies, 

 Stygies, Hepiales, Zeuz^res, and Cossus ; all of them are 

 good, well-defined, and distinct groups ; and, in the ojnnion 

 of that eminent Entomologist, are of equal value. I am the 

 more desirous of impressing this on my reader, because the 

 confining of families to a single species does, I acknowledge, 

 imply, to a cursory observer, the existence of a somewhat too 

 eager desire to subdivide.'' 



It will be observed, that, in these families, I adhere very 

 nearly to what has already been done by that excellent ento- 

 mologist, Mr. Stephens, whose arrangement of insects by far 

 excels any other that has yet been carried into detail. In 

 separating the genera Cossus and Zeuzera from HepialuSy 

 I am only doing what is absolutely necessary ; for the families 

 Ilepialidce and /Egeriidce are so complete and comj)act, when 

 limited in their contents to the genera Hepialus and xEgeria 

 of Fabricius, that the introduction of any other genus would not 

 only entirely destroy their uniformity, but would completely 

 nidlify any characters designed for these beautifully isolated 

 groups, by making them too comprehensive. 



Mr. Stephens's family, yEgeriidcc, seems to me, in every 

 respect, a natural family ; and I may add, that this, and the 

 neighbouring families, Sesiidre, Zygcenidce, HesperihUc, &c. 

 are excellent examples of this kind of group. In saying this, 

 I do not pretend to know to what foreign genera Mr. Stephens 

 would extend these families ; I speak of them only as regards 

 their British contents. 



Familia II. i^GERiiD^, Stephens. 



Genus Sphinx, Linnceus. i^^GERiA, Fabricius. 



Trochilium, Scopoli. Sesia, Laspet/res. 



Ovum — subglobosiuu glabrum. 



'' It may be observed there are many exotic species of each I'amily. 



