184 Mr, J. O. Westwood’s Monograph 
XXVIII. Monograph of the Genus Panorpa, with Descrip- 
tions of some Species belonging to other allied Genera. 
By J. O. Westwoop, F.L.S. 
[Read 5th May, 1841.] 
A vatuasLe Monograph on the family Panorpide having been 
recently published by Dr. F. Klug, in the ‘ Transactions of the 
Berlin Academy for 1836,” I have thought that it would be both 
useful and interesting to give descriptions of such new species of 
this family as I have met with in the principal collections of 
London, by way of supplement to the memoir of the learned pro- 
fessor of Berlin. 
In the monograph above mentioned are described thirteen 
species of Nemoptera, (which genus is however correctly regarded 
as not naturally belonging to this family,) five of which, from 
Caffraria and Arabia, are new; eleven species of Bitlacus, eight 
of which, natives of the Cape of Good Hope, Senegal, Mexico, 
Chili, Brazil and New Holland, are new; and seven species 
of Panorpa, two of which, from Mexico, are new. In the genus 
Boreus is contained only the B. hyemalis. And, lastly, a new 
genus is established under the name of Chorista, founded upon an 
Australian species (C. Australis, Klug), resembling the ordinary 
Panorpe in size, but not having the front of the head rostrated, 
although the parts of the mouth are analogous to those of Panorpa. 
The female only of this interesting insect has yet been recorded. 
Still more recently Dr. Burmeister has published the description 
of another new species of Panorpa from the East Indies, in his 
“* Handbuch der Entomologie.” Such is the extent of our present 
knowledge of this family. It is therefore with pleasure that I am 
able to add considerably not only to the species but even to the 
genera of this family. I regret, however, that 1 am unable to add 
any further account of the preparatory states of the species than 
is contained in my ‘ Introduction to the Modern Classification of 
Insects.” Since that work was published a very elaborate memoir 
on the internal anatomy of the common species has appeared in 
the “ Annals of Natural History,” published in Holland by Van 
der Hoeven. 
