194 ALBATROSS EXPLORATIONS, INSECTS — HOWARD. 



Periplaneta australasiae Fab. 



Also widely distributed. Three mature specimeus and three mature 

 larvae from Charles Island. 

 Leucophaea surinamensis (Lin.). 



This rather widely distributed species of cockroach is represented in 

 the preseut collection by three mature and niue immature specimeus. 

 Of the former one, a rather darker form than usual is from Bahia, Bra- 

 zil ; three young are from the Island of Abrolhos. The remaining speci- 

 mens are from the Galapagos Islands. 



Nauphceta bivittata Bruuuer. 



Three specimens from Chatham Island are referred here. 

 Nauphceta laevigata? (Pal.). 



The Galapagos Islands material also contains three immature speci- 

 meus of a second Nauphceta, which is evidently the Blatta laevigata of 

 Paiisot de Beauvais. 



HEMIPTERA. 



Family PENTATOMIDJE. 

 Nezara viridans Stal., Freg. Eugenie Resa. Ins., p. 228, No. 21. 



Two specimens were secured on Chatham Island. 

 Family HYDROBATID^E. 



Halobates wuellerstorfi Frauenf.. Verb. Zool. Bot. Gesell., v. 17, 458. B. Wbite, 

 Cballenger Exped. Zool., v. vu, p. 40, pi. 1, fig. 1. 



Numerous specimens were collected from the surface of the ocean near 

 the Galapagos Islands and south as far as latitude 23°, and also in the 

 Caribbean Sea. A variety of the female at Chatham Island. 



NEUROPTERA 



Family LIBELLULID.E. 



Four specimens of the genus JEschna from Chatham Islaad and one 

 specimen of the genus Tramea from Albemarle Island. No species of 

 the IAbellulidce are described from the Archipelago, but these stroug 

 flyers may belong to the continental species. 



LEPIDOPTERA 



Family NYMPHALID.E. 

 Agraulis vanillas Linn. var. galapagensis Holland. 



The form of A. vaniiku in the collection ticketed "Chatham Island" 

 differs in some respects so decidedly from the typical form as to well 

 deserve a varietal name. It is characterized by its smaller size, by the 

 darker and more fuscous tint of the basal half of the wings, by the great 

 increase in breadth of all the black markings on both surfaces, and the 

 almost entire obliteration of the white dots by which the spots in the 



