554 



ably other plants. It builds its cells of resinous material and 

 is sometimes a nuisance because of its fondness of choosing a 

 keyhole for its nesting site, but doubtlessly other crevices about 

 buildings, walls or fences are utilized. It probably occurs on 

 all the islands and I have seen specimens from Kauai, Oahu, 

 Maui and Hawaii. As before stated, it is also known from 

 China and India. 



Megachile diligens Smith. 



Smith, Journ. Linn. Soc. Zool., 14, p. 684, 1879. 



This species was first collected by Blackburn in Honolulu 

 and has never been found in other parts of the world. Perkins 

 records it from Oahu, Molokai and Kona, Hawaii, and I have 

 seen specimens from Kauai (Koebele) ; Kaena Point (Giffard) 

 and Waimanalo (Swezey) on Oahu; Kahuku, Hilea and 

 Honuapo, Kau district (GifTard), Kaawaloa, Kealakekua (Gif- 

 fard) and Napoopoo (GiiTard, Swezey), Kona district on 

 Hawaii. It has become comparatively rare in recent years, as 

 remarked by Perkins, and its nesting habits remain largely 

 unknown. According to Blackburn, it forms its nest of leaves 

 of a species of Acacia (presumably Cassia was meant) rolled 

 up into cylindrical cells, which are joined one at the end of 

 another. 



Megachile palmarum Perkins. 



Perkins, Fauna Hawaiiensis, vol. I, part 1, j). 114, 1899. 



This species was recorded by Perkins indefinitely from 

 several islands, but was certainly taken by him on Oahu. I 

 have seen specimens from the following localities : Kauai 

 (Koebele); Kaimuki (Swezey, Timberlake), Aiea, Pearl Har- 

 bor, Oahu Sugar -Co. Plantation (Swezey), South Waianae 

 Mts. (Williams), Oahu; and Puunene, Maui (Swezey). It is 

 also recorded by Perkins from California. 



It may be found visiting the flowers of Antigoiioii Icpiopns, 

 although greatly outnumbered during the last few years in 

 Honolulu by schauinslandi and timberlakei. It builds its nest 

 in the creases of the under surface of palm leaves and probably 



