Ill THE ENTOMOLOGIST'S RECORD. 



appearance of five-spotted males and then by a broadening of the 

 marginal band of hindwings in an increasing number of individuals of 

 that sex. Even in South Tyrol I bave seen a few from Terlana and 

 one in tbe Trent coll. with the hindwings nearly as dark as in nymo- 

 typical stoechadis, but there is, as a rule, no tendency to produce these 

 dark forms in that region. Those races of Central Italy which 

 constantly point in this direction can be called race oclisenheimeri 

 trans ad etrusca, Vrty. ; they are parallel to the French pyrenes. 



Eace microchsenheimeri, mihi. Size varies so markedly and 

 contributes to produce two such distinct-looking extreme races, that I 

 feel justified in proposing a new name. In the Aurunci Mts. (Southern 

 Latium) Querci has found a very large and brightly coloured 

 ochsenheimeri ; near Kome and in South Tyrol the size is not so ex- 

 cessive, but still large. On the contrary in the Mainarde Mts., at 

 Villalatina, m. 500, quite a small race is produced with body and 

 antennee more slender and with wings narrower, primary pattern 

 darker and duller, red less bright. Count Turati has kindly sent me in 

 exchange a series of specimens from Primaluna, m. 550, in Val 

 Sassina (lake of- Couio) which is quite similar to the one of the 

 Mainarde (tbe five-spotted form is found in about 5% of the males). 

 Unfortunately we still greatly lack in knowledge concerning the dis- 

 tribution of the various races of stoechadis in the Basin of the Po. 

 Specimens I have seen collected in various localities of Piedmont by 

 Signor Gianelli of Turin agree perfectly, however, with microchsen- 

 heimeri both in size and in the tinge of the dark and of the red 

 pattern, so thrft those forms, which also agree with it in the limited 

 extent of the dark markings, do not differ from it in the least and the 

 name should be used for the races of that region consisting chiefly in six- 

 spotted, narrow margined individuals. We shall see that nymotypical 

 medicaginis and stoechadis are also from that region ; micr oclisenheimeri 

 only differs from them by the greater extent of the red secondary 

 pattern. Paces corresponding to the designation of microchsenheimeri 

 trans ad medicaginis or to that of medicaginis trans ad ochsenheimeri 

 will no doubt be found locally and also microchsenheimeri-pulcherrima 

 because pulcfierrima, as already stated, is quite frequent in the Po 

 basin. 



M. Rondoa has sent me from Gedre, m. 1000, in the Hautes- 

 Pyrenees a little series which does not differ in the least from the 

 Italian ones and contrasts sharply with specimens of filipendulae race 

 mannii, H.S., from the same region ; I can detect no signs of transition 

 between the two, so that I suppose the first is found at the bottom of 

 the valley of Gedre and the second in higher and colder spots, but 

 Eondou had not noticed the difference and could give me no informa- 

 tion about them. As a rule size decreases as altitude increases, but 

 local causes create exceptions, such as the large race of the Aurunci 

 Mts., in Southern Latium found from 400 to 1200 m. I possess a 

 little series of rfiicrochsenheimeri, some of which of very small size, 

 collected as high as 1500m., at Casteldelmonte in the Abruzzi, on the 

 Gran Sasso : — 



Race microchsenheimeri trans ad montivaga, mihi. 



(To be concluded.) 



