Insects. 8389 



Sp. 3. LlTHOSIA PALLIFRONS. 



Zell. E/ttom. Zeit. 



Parva. Alae anticae vivide ochraceae, unicolores, costa post medium 

 convexa ; subtus atro-griseae, vittis costali et marginali, fimbria 

 vix latioribus, luteis costa basi nigricante. Alae posticae mar- 

 gine interiori late nigricante, nervis concoloribus, costa subtus 

 tenuissime lutea. Corpus luteum, pectore segmentisque 5 ab- 

 dominis griseis. " 



I have received this new species from Silesia, and it has been 

 identified by Zeller himself. Since then I have taken it at Bourg- 

 d'Oisans in July. It seems to frequent our mountains and lower emi- 

 nences : near La Grave and Lautaret it is replaced by L. luteola. 



It may be distinguished from L. luteola by its yellow head, and by 

 the nervures of the hind wings being concolorous, &c. ; and from L. 

 pygmaeola by the colour of the thorax, which is entirely yellow; by 

 the colour of the wings, almost as bright as in L. luteola ; and by the 

 shape of the hind wings, which appear a little less triangular in the 

 male. Nevertheless, some of these varieties approach so near to L. 

 pygmaeola that we cannot be certain of the validity of L. pallifrons as 

 a species until we know the prior states. 



Sp. 4. Lithosia marcida. [No British example]. 

 Sp. 5. Lithosia luteola. [No British example]. 

 Sp. 6. Lithosia pygmaeola. 

 Doubleday, Zool. 1914 ; Wood, Suppl. 1G91 ; Bdv. Icon. p. 105, pi. 

 57, fig. 9 (non 10), 1834 ; Dup. Suppl. p. 30, pi. 2, fig. 5=*Lu- 

 teola, Frey, 380, fig. 4 ? 

 Parva. Pallide straminea. Alae anticae unicolores, basi paulo 

 angustiores, costa vix convexa ; subtus griseo-nigrae, fimbria, 

 vitta terminali fimbriae latitudine costaeque dimidia parte luteis. 

 Alae posticae, subtrigonae, primoribus concolores, dimidio ante- 

 riori nigro-griseae. Caput luteum. Thorax abdomenque luteo- 

 grisea, ano stramineo. Foemina minor, alis brevioribus plus 

 minusve griseo lotis, costa tunc mere straminea. 



France and the South of England, in dry and sandy woods, in 

 June and July. Never very abundant. I take it in the neighbour- 

 hood of Chateaudun and about Paris, at Hublay (Seine-et-Oise). 



The male varies little, but it is different with the female, which is 



