1895.1 109 



The figures of the case are reproduced from Ent. Mo. Mag., vol. i, p. 125, 

 referred to above. Figs. 1 and 2 represent the upper and under-side of an adult 

 larval case, twice natural size ; fig. 3 the upper-side of a smaller case, natural size. 



Merton Hall, Thetford : 



March Z\st, 1895. 



A SMALL CONTRIBUTION TO A KNOWLEDQE OF THE 

 NEUROPTEROUS FAUNA OF RHENISH PRUSSIA. 



BY ROBERT McLACHLAN, F.R.S., &c. 



The sliort time occupied by my continental excursion in 1894 

 was chiefly spent at two localities in Rhenish Prussia, in company 

 with my old friend Mr. A. H. Jones. 



From July 21th to 27th we stayed at Gerolstein, a large village 

 in the ancient volcanic Eifel district, on the river Kyll, with a station 

 on the line from Cologne to Trier (Treves). This village is chiefly 

 renowned for its trade in bottled mineral waters from several natural 

 springs in the vicinity. The weather was indifferent. The country 

 is very varied in its nature, with magnificent forests of vast extent, 

 the surface highly undulating, and at places rising to considerable 

 elevations. It should prove rich in Neuroptera, but in the course of 

 only a few days' stay in a locality of this nature, one has not dis- 

 covered the best working places before it is time to leave. The 

 accommodation here is clean, if somewhat primitive, the drawback (to 

 me, at least) being the absence of fruit of any description. 



Devoting two days to the famous old city of Trier (which was 

 new to my companion, but which I had previously visited), we moved 

 on July 30th to Bullay, a small town on the Moselle, between Trier 

 and Coblenz, connected with the town of Alf on the opposite side by 

 a fine iron bridge in two tiers, the upper serving for the railway, the 

 lower for vehicles and pedestrians. It is here that the Moselle forms 

 one of those remarkable doublings upon itself for which it is so 

 famous, including in its course a peninsula nearly nine miles (English) 

 long, the neck of which is only about a quarter of a mile wide, so 

 that on climbing a steep ridge the river lies as it were immediately 

 below on either side. The weather here was fine, save for the occur- 

 rence of heavy downpours of short duration. Every available square 

 yard is devoted to vineyards, and where the aspect is not suitable for 

 them, the hills are covered with scrubby oak or other trees, with little 

 or no undergrowth. Under these circumstances, the only collecting 



