8 [January, 



de Gata, isolated from either, but nearer the former than the latter. 

 The town lies at about 3000 ft. elevation. We went several times to 

 the top of the Sierra, and worked in other directions. On July 17th 

 we proceeded to Piedrahita de A vila in Castile, over 30 miles east of 

 Bejar, lying under a low (5500 ft.) sub-ridge of the Sierra de Gredos, 

 and with a wide plain on the other side. Hence an excursion was 

 made to El Barco, a little town on the upper waters of the river 

 Tormes. On the 23rd Avila was reached." 



I find 24 sj)eciea in the collection, or nearly the same number as 

 from the Cuenca district ; but on comparing the two Lists it will be 

 seen that there is a not inconsiderable amount of specific discre- 

 pancy in the materials. And as to I'acial forms this more westerly 

 district may perhaps b^ regarded as less meridional, but the difference 

 is very slight indeed. 



LIB ELLULIN^. 



Platetrtjm drpressdm, L. Bejar and Avila, 3 S , two of them immature, 

 which seems to me as late for so far south. Tiie specimens arc somewhat small. 



LiBELLULA QUADKiMACTJLATA, L. Piedrahita (3), El Barco (1). These ex- 

 amples have verj small nodal spots, and scarcely a trace of yellow on the wings. 

 Not indicated as Spanisli in Ed. Pictet's "Synopsis" (1865), but since recorded 

 from several localities by Navds. 



Sympetrum flaveolttm, L., var. luteolum, Sclys. Avila and Piedrahita, 

 common. 



Sympetrum meridionale, Selys. Bejar. Mostly infested with the red 

 Acari, as is usual. 



Sympetrum striolatum, Chp., Bejar. 



Sympetrum sanguineum, Miill. Piedrahita and El Barco. 



Orthetrum buunneum, Fonsc. Bejar and Avila. 



Orthetrum cjjrulescens, p. Bejar and El Barco. Quite ordinary. 

 GOMPHIN^. 



Onychogomphus uncatus, Chp. Bejar. 



Onychogomphus forcipatus, L. Avila, 1 ?, practically of the "race 

 meridionale " of De Selys. 



Gomphus pulchellus, Selys. El Barco, 1 ? . 

 CORDULEGASTEIN^. 



Cordulegaster annulatus, Latr. Bejar and Piedrahita, of the typical 

 form. The examples from Cuenca and neighbourhood were, on the contrary, 

 strongly of the meridional or " immaculifrons " race. 



^SCHNIN^. 



^SCHNA MIXTA, Lair. Bejar, 1 $. 



