(22h .) 
XV. On species of Chrysopa observed in the HKastern 
Pyrenees ; together with descriptions of, and notes 
on, new or little-known Palearctic forms of the 
genus. By Rosert McLacunan, F.R.S., &e., 
Treas. Ent. Soc. 
[Read April 12th, 1893.] 
In the month of July, 1886, I had the privilege of being 
the guest of our esteemed colleague Mons. René Oberthur 
at his villa at Vernet-les-Bains (Dép. des Pyrénées Orien- 
tales). This small town, noted for its thermal springs, 
is admirably situated for the requirements of an entomo- 
logist ; the district is sufficiently near the sea to have a 
Mediterranean element in its fauna, sufficiently elevated 
to have its summer heat tempered, and close enough to 
the Spanish frontier to have areal mixture of Peninsular 
forms not found elsewhere in France. My captures of 
Neuroptera in nearly all families were considerable, but 
in no respect were they proportionally richer than in 
the genus Chrysopa, species of which abounded near the 
town, and more especially in terraced abandoned vine- 
yards, where, as is usual elsewhere, I found the Ash 
trees (F'raxinus excelsior) harboured the larger number. 
During my short stay of more than a. week over 150 
examples were captured; these were roughly examined 
soon after my return,* but until now they had remained, 
without more critical notice, in a store-box. A more 
careful scrutiny reveals at least ten species, some being 
of considerable interest; and as practically nothing 
whatever has been written on these insects so far as 
regards that particular part of Kurope, I propose to give 
a list of the species observed with comments, as a small 
contribution towards a knowledge of the local fauna. 
I have alluded to Ash as the most productive tree for 
* Exhibited at the meeting held on Sept. 1st, 1886, see Proc. 
Ent. Soc., 1886, pp. xlii—xliii; the provisional list of species there 
given has been slightly modified and augmented. 
TRANS. ENT. SOC. LOND. 1898,—PART III. (SEPT.) 
