88 THE rntomolo(tIst's record. 



geneviiUy eastern direction, rising at one point to nearly 5000ft., to 

 Guadalaviar, a small village situated near the source of the river of 

 that name, and at the foot of the Muela de San Juan, a central 

 summit or ridge of the Albarracin Sierra of a little over 5000ft., but 

 not by nearly 1000ft. the highest in the group. On the way we 

 crossed the source of the Tagus (Tajo). Leaving Tragacete we first 

 traversed a hillside clothed with a forest of small oak trees, that would 

 have repaid some collecting therein, especially, probably, earlier in tlie 

 season. On the way I found a group of larvae of a Ciu'thocampa new 

 to me, of which, unfortunately, only one pupated. These are probably 

 C hercidcaita. They had no web, and were on a Pinna that was not 

 P. si/lretitris. On the Guadalaviar slope of the last steep ridge we 

 crossed, Parnassius apollo flew freely, as well as the very pretty little 

 AntJirocera faimta. On this same ground, on an Euphorbia, probably 

 nicaeensis, common there, were many nests or families of all ages of an 

 Acronyctid, of the viyricae group. These were probably (jlidia 

 chainaf.si/ri's. Unfortunately this Kiiphoihia does not grow at Albarracin, 

 whither I had to carry those I took, and they did not thrive on 

 Euphurhia scrrata, on poor specimens of which I had to feed them, and 

 very few pupated. We were told here that Erehia zapateri occurred 

 on the Muela de San Juan, but that mid-August was a more likely date 

 to meet with it. 



The following day we proceeded to Albarracin, crossing the hills for 

 a space and striking the Guadalaviar lower down at Trama Castilla, 

 and thence ft)llowing the river past Torres to Albarracin, a walk of a 

 dozen miles down the hot valley. For the last two miles of this, 

 above Albarracin, the river runs through a gorge of inaccessible 

 precipices for the whole distance. At Albarracin it makes a great 

 bend nearly returning on itself. The peninsula thus enclosed is the 

 site of the ancient town of Albarracin, protected thus by the river, on 

 its own side by the precipices on which it stands, and on the opposite 

 by similar but higher ones, whilst across the neck of the peninsula, 

 the Moors constructed a great wall, running high up into the hills 

 and with many towers at short intervals ; much of this is still in very 

 fair preservation. The old Moorish castle on tbe highest part of the 

 peninsula is more ruinous. The present Albarracin is still largely 

 within tbe old limits, but has also extended up and down the river 

 beyond them. A very good road, some twenty years old, now runs up 

 to Albarracin, passes through the neck of the peninsula by a short 

 tunnel, and goes on to Noguera and Orihuela, whore are certain baths. 

 "We found very tolerable quarters here at the Posada of Sehor Jose 

 Narro, situated in a new house, outside the lower end of the town. 

 Senor Jose had been associated to some extent with Herr Korb in his 

 collecting, but though he still supplies living pupie of G. isahellae to 

 German dealers, he is not able to capture and preserve imagines 

 successfully. He nevertheless knows the habitats of many of the 

 species peculiar to the district, though he does not know their names. 

 We stayed at Albarracin from July 27th till August 8th, with the 

 exception of three days occupied by an excursion to Bronchales on 

 August 3rd. 4th and 5th. One of the tii'st things we did was to call 

 on Canon Zapater, who lives in a large rambling house just below tbe 

 city. He received us very kindly and took us for a walk to the habitat, 

 nearest to Albarracin, of Satyrus prieuri, and we there saw one on the 



