362 NOVITATES ZOOLOOICAE XXIV. 19l7. 



algeriensis and simulatrix replace this species geographically in Algeria and 

 Tunisia respectively, I feel bound for the present to treat both as subspecies of 

 loti. 



[Pachygastria serrula (Guen.) and its allies. 



This little group of species is very difficult to make out, but fortunately I 

 have a good series of the two Palestine forms davidis Stdgr. and serrula pulaesti- 

 nensis Stdgr. for comparison. The type of Guenee's serrula was said to have 

 been brought from Andalusia by Lorquin, but there appears to be some doubt 

 as to the correctness of the locality (see Oberthiir, Etudes d' Entomologie, livraison 

 vi. pp. 73, 74). The figure of the type [Ann. Soc. Entom. France, pi. x. fig. 2) is 

 not good, too red and not pure grey enough. 



The next record of serrula is from Mt. Tessala, Prov. Oran, where it was dis- 

 covered bj' JMr. Austaut in 1880. Mr. Oberthiir describes it and figures the (J and 

 larva [Etud. Entom. livr. vi. p. 73. pi. iii. Nos. 6 and 6«) from Mr. Austaut's speci- 

 mens. These figures are not very good. Since then a number of forms (aegyptiaca 

 Oberth., marocmna Stdgr., and undukita Stdgr.) have been described ; in addi- 

 tion to this Staudinger has described davidis and Oberthiir homilcar with a var. 

 hamilcar, which these authors consider good species. As regards davidis, Herr 

 Paulus, its discoverer, stated that its larva was feeding in company with that of 

 s. palaestinensis and did not differ from it. Comparing davidis and palaesiinensis 

 and hamilcar and vndulata = homilcar, we at once see that they bear exactly the 

 same relationship to one another, and I have no doubt that davidis is the extreme 

 pale form of serrula palaestinensis, just as hamilcar is the extreme pale form of 

 serrula itndulata. If Mr. Oberthiir had looked up the original descriptions 

 of Staudinger's vars. maroccana and iinduhta {Iris, vol. vii. p. 265), instead of 

 merely reading the diagnosis in the Catalogue of 1901, he would have perceived 

 that the tnaroccana fitted his cj figure of semda very well, while the umhilata 

 was his homilcar. The Tring Museum possesses a (J? out of Austaut's collection 

 labelled "S. serrula V"' hrunea Oran, type Austaut." This is apparently one of the 

 specimens obtained on Djebel Tessala. Staudinger's type of maroccana was also 

 from the Austaut collection from somewhere near the Moroccan frontier; it 

 apparently is only an aberration with less grey mixture in the brown and the 

 transverse bands almost absent.] 



82. Pachygastria serrula serrula (Guen.). 



Bombyx serrula Guen^e, Ann. Soc. Entom. France, ser. 3. vol. vi. p. 45-t. t. 10. fig. 2 (1858) (.\nda- 



lu.sia ? !). 

 Bombyx serrula Oberthiir, Etud. Entom. livr. vi. p. 73. t. iii. ff. 6 (J and 6a larva ((J = ab. -maroccana 



Staudinger) (1881) (Djebel Tessola). 



4 <?<?, 2 $? Mauretania, Grum-Grshimailo coll. 

 1 (J, 1 ? Oran, Austaut (labelled V" hrunnea type). 

 4 (J (J Perregaux, Prov. Oran, October 1915, Faroult. 

 1 larva, AIn Sefra, W. R. and E. H. 



The British Museum has 8 Algiers ! ! 



The Tring Museum series consists of 9 <J(J and 3 $? =: 12. 



