172 



accessible to its short tonguie. That it should bite upon the right 

 side and not u})()ii the left is most interestino-; for Bo)nhus liaeinoir- 

 lioidalis, Smith, a Bum1)le Bee of the Himalaya has Ijeen recorded 

 (Journal of llir A sialic Society of Bengal, X. S. ii, 190G, p. 524)' 

 as biting upon the right side of the corollas of a Scutellaria. Such 

 a development of a left-handedness in Bees might be invoked to 

 account for the peculiar trvist found in flowers so distinct from one 

 another as Dicliptera in the Acanthaceae, Fedicularis in the Scro- 

 phnlariaceae, Plocoglotlis in the Orchidaceae, and others. It has 

 been seen to l)ite the calyces of Clitorea Ternatea, Linn., in 

 Malacca. l)ut no record has been preserved of the position of the 

 bite. 



A', aestiians has Ijeen seen using old liok's in the tlowers of 

 Clitoria cajanifolia, Benth., in Singapore, holes which it may have 

 made in an earlier part of the day. but it was not seen at the luting. 

 These holes were also on the right si(h^ of the flower. 



It has been seen luting tlic following flowers in the middle 

 line of the corolla, — 



Torenia Fournieri, Linden, in Singajjore. the phuit being a 



native of Indo-C*liina. 

 Bi</fionia magnipca. Bull, in Singa])ore. the ])lant being a 



native of New Granada. 

 Barhria cristata, Linn., in Sini>ai)ore, tlie plant being a native 



of India. 

 fiuellia tiiberosd, Linn., in Malacca, the jdant being a native 



of America. 

 .Ls'//.s/a.s'm coromandel'iana. Xees. in Singajiore, Penang, 



Kuala Lumpur, Malacca and at Tebong in Malacca, the 



])lant l)eing Indo-Malayan. 

 Ilosra Lohhii Ih'dl.. in Singapore, the jdaiit being a native of 



Borneo. 

 The counti'ies of the origin of the flowers bitten l)v the two 

 Xylocopas, A. hilipes and .\ . aeslnans jiave been given above after 

 each Jiame. 



Six of the plants are native of the Xew World, ami con- 

 sequently are new sources of food which our gardens ]n*ovide i:o 

 these insects: eight are native of the Old World, l)eing one from 

 Africa ami se\en from the Indo-Malayan tropics. 



Like A', lalijies, X. aeslnans has been seen upon ui>side-down 

 Leguminosae, but on Canavalia lineata, DC. only, and this only 

 at Pangkalan Balak upon the coast west of ^lalacca. 



Ft pollinates other Leguminosae. notably: — 



Crolalavin slrlahi. IX'.. all through the 'i'erritory of ^lalacca, 



freely. 

 Dcrris III i/rsi/lora , Benth., iu Singapore, freely. 

 riiaseoliis hniahif!. Linn., in Singa])ore, freely. 

 Faclii/rrli izus angnlalus, liich.. in Singapore, freely. 

 Felloplionnii ferrugincuin , Benth.. in Singapore, fi'eely. 

 Plerocarj)us indica, Willd., in Si]igapore. 



