50 



ON SOME LYRAMORPIIA-SPECIES. 



As habitat he gives: » Halmaheira septentrionalis, Morotai, 

 Waigeou, Nova Guinea et Aru". 



At the end of the description, where he mentions the 

 maculate character of the elytra, van Vollenhoven writes : 

 »L'individu de la Nouvelle Guinee et celui d'Aru ne 

 portent point de marques ni de taches sur les élytres". 



On the plate are given a coloured drawing of the insect 

 (fig. 3) and figures of the and 9 genital segments 

 (fig. 3 cT, 3a cf and 3 $), but these latter belong to 

 two quite different species. 



Fig. 3a cT evidently was made after the specimen repre- 

 sented as fig. 3; figs. 3 cf and 3 9 refer to another species. 



In his Lyramorpha-monogr&iph. Horvath pointed out that 

 only the last figures: 3 <ƒ and 3 9 belong to the true 

 L. Vollenlwvii Stal. Figs. 3 and 3a c? are quoted by him 

 under his new L. ambigua, of which the only specimens 

 the exact locality of which, was known to him, came from 

 the island Salawatti. 



As L. Vollenlwvii is the only species with maculate 

 corium, it is evident that figs. 3 and 3a were made after the 

 specimens alluded to from New Guinea and Aru. 



These specimens are still in the Leyden Museum and 

 I could examine them. Both are males and their genital 

 segments are different. 



The specimen from Aru has the genital segment much 

 like that figured by Horvath for L. parens Bredd., more 

 deeply emarginate than is the case in L. ambigua ; the 

 apical spines of the last abdominal segment agree also. 



The specimen from New Guinea has the genital segment 

 resembling Horvath 's drawing of L. ambigua; but the spines 

 of the sixth segment are acute, more produced and evidently 

 surpassing the apex of the genital segment. 



Neither of them quite agrees with van Vollenhoven's 

 figures, but I think it most probable that the represented 

 specimen is the one from New Guinea, the differences being 

 within the limits of errors we frequently met with in the 

 » Essai «. 



Notes from the Leyden Museum, "Vol. XXX. 



