171 



Dioclea la-vocarpa, Mart., in Singapore, freely. 



Derris tliyrslflora, Benth., in Sino-apore, rarely. 



DoUclios Lahlah, Linn., in Penang and Biitterworth . 



Cajanus indiais, Spreng., in Singapore. 



Pterocarpus indica, Willd., in Singapore. 



PeUophoriim ferrugineum, Kenth., in Singapore, freely. 



Cassia corymhosa. Lam., in Penang. 



Cassia alata, Linn., in Penang and at Alor Gajah. 



Cassia javanica, Linn., in Penang. 



Cassia siamea, Lam., in Singapore. 



Saraca thaipingensis, Cantl., in Singa]X)re, freely. 



Saraca derlirmfa. Miq., in 8inga])ore, freely. 



Saraca indica, Linn., in Singapore, freely. 

 It is a particularly bnsy insect upon Dioclea,. Pelfophonnii and the 

 Saracas. 



It lias been recorded as visiting also : — 



Crato.rglon poh/anthuni . Korth., in Singapore. 



Pterospernium acerifoUiim, Willd., in Singapore. 



Adinandra dmnosa. Jack, in Singa])ore. 



Hiptage MadJiablofa] Gaertn., in Singapore. 



Eugenia zejilioiica. Wight, in Singapore. 



Melasfnma niiilahathricinn, Linn., in Sijiga|Jore. at '^^rain])iii and 

 at Alor Gajah. 



Turnera, odorata. Eich., at .Tasin. 



Morinda citrifolla, Linn., at Tam]nn. 



Lantana Camara, Linn., on Government Hill. Penang. 



Gram matoplij/lJ inn spcciosam. Plume, in Singapore. 



Of these it is common and diligent upon Crafo.rijlon particularly, 

 it is more often seen on Melastonia malahathricnrn than the ex- 

 tremely meagre return of honey Avould seem to justify. On the 

 flowers of Granunatophylliim it is not at home; it tries one or 

 two and in the writer's experience soon quits the |)lant ; Ijut when 

 observed by Mr. H. N. Eidley, in the Journal of the Sfraiis Brancli- 

 of the Royal Asiatic Society iSTo. 34, 1905, p. 328, it commonly 

 visited the flowers, and by its weight so depressed the lip that it 

 did not pollinate them. 



It is rather clumsy upon the flowers of Turnera, rarely taking 

 all the available honey, because it treats the flower as if bilaterally 

 symmetrical. As a consequence of its considerable weight the 

 flower nods when visited, and the bee then visits either above or 

 below the sexual organs but not both, ancl does not make a circuit of 

 the five nectaries. Tlve pollen of the plant may thus l)e cauglit on 

 the bee's back or on the bee's belly; but it has been seen that quite 

 a sufficient amount may l)e carried. 



Xylocopa aestiuins bites flow^ers just as X. lalipcs does. It 

 settles outside and make a hole in the middle line of most of tliem : 

 but on Dolichos Lahlah it may settle and turning to the left bite 

 a hole u])on the right side of the calyx where the honey is most 



