All Entomoloyical Excursion to Central Spam. 117 



Hcliopathcs, Aristus, Acinopus, Sterop^ts, Ophonus, etc. 

 About " stercore humano," only too abundant everywhere 

 on the outskirts of Cuenea, the very local Aids sansi, Sol., 

 and a large Blaps, were not uncommon. The Jucar river, 

 which is joined by the Huecar in the middle of the city, 

 and down which large numbers of logs are floated, did 

 not look very attractive for collecting, the valley being- 

 much barer of vegetation (and we therefore paid but 

 little attention to it) above the town, though we followed 

 the stream down for some distance. Here, Plagiodcra 

 swarmed on a species of Salic and a Haltica on poplar, 

 both stripping the trees of their leaves, the destructive 

 Galcrucella luteola, Mllll., on elm, two species of Notoxtis, 

 etc. On the sandy banks of the streams about Palomera, 

 Omophron, Acylophorus, Pmdcms, Tachyusa, Potaminus, etc., 

 occurred, and in the water itself various interesting species 

 of Dcroncdcs, Gyrinus, Elmis, Ochthehius, and Parnus. At 

 Cuenea we were again fortunate enough to meet a young 

 entomologist, Juan Jimenez Cano, and he accompanied 

 us on various excursions. Leaving this place in company 

 with this gentleman, on July l7th, for the first stage of our 

 journey across the mountains of Castile into Aragon, for 

 which a guide and horses were with difficulty procured, 

 we reached Una, in the vicinity of the lake of that name, 

 the same afternoon passing on our way the curious place 

 known as the " Ciudad Encantada " (Enchanted City), and 

 very interesting from a geological point of view, passing 

 the night in very primitive quarters. Here, in the village, 

 as elsewhere, the widely-distributed and conspicuous Longi- 

 corn Spondylis huprcstoides, L., was noticed quite commonly 

 on the wing towards evening. The district hereabouts, as 

 noted by Mrs. Nicholl, looked very good for entomological 

 work, the slopes of the adjacent hills being clothed with 

 pine-forest, and there being plenty of flowers in the marshy 

 ground round the lake, but as we had decided to go on as 

 soon as possible to Tragacete, we made an early start next 

 morning for that place. This day's journey, which lay 

 through a very hilly, almost uninhabited country, clothed 

 in great part with open pine-forest, was a very fatiguing 

 one, to two of our party at least, one of our guides losing 

 his way for some hours, the right track being regained with 

 difficulty, ten hours in all being spent in the saddle. At 

 Tragacete, where we obtained accommodation in the house 

 of Indalechio Martinez, we remained till July 26th. This 



