248 



f Bengal. [N.S., XII, 



The flowers of Crotalaria medieaginea, Lamk., open after 

 6.30 a.m. and close at nightfall (Kasod, 17 to 18-ix-09), and 

 those of Crotalaria ealyeina, Schrank, close at sunset (Chitowni, 

 Tirhut-Nepal Border, 19-xi-07), 



Phaseolus calcaratus, Roxb., was seen visited by Xylocopa 



aestuans for honey (Dalsing Sarai, Tirhut, 29-V-07), and 

 Phaseolus trilobus Ait., by an undetermined Xylocopa and 



also by another Apiid (Parlakimedi, Circars, 15-ix-02). 



An insect like Xylocopa would seem the most probable 

 one of service to Clitorea Ternatea, Linn., especially as 

 X. latipes is a very frequent visitor to the similar Centrosema 

 Plumieri, Benth., in Singapore. The big landing stage, which 

 these two upside-down Leguminosae afford, is peculiar and is a 

 specialisation which would appear more appropriate to a 

 butterfly-flower than to a bee-flower, were it not that such 

 strength as butterflies do not possess, is necessary to force a 

 way under the keel. A butterfly was seen at the flowers 

 (Calcutta, 22-ix-Gl). 



Caesalpinia Bonducelia, Fleming, at Gauripur, Mymen- 

 sing (9-viii-07), and Connarus puniculatus, Roxb. on Bilu- 

 gyan, Moulmein (3-iii-04) were noticed freely visited by Xyloco- 

 pa aestuans. 



Fn;. 6. — Flower of Anisomeles ovata. 



widely 



Anisomeles ovata, R. Br., one of the Labiatae which is 

 spread over the plains of India, seems largely to depend 

 same insect. Its flowers have a fair supply of honey 

 protected from unwelcome visitors by a ring of hairs 3 mm. 

 from the base of the flower-tube at the point where the stamens 

 are inserted. The tube is about 5—6 mm. long ; and the 

 stamens project from it and beyond the meagre upper lip, 

 the anthers lying over the alighting place of the lower lip, 



just 



from the base of the flower. 

 Anthophora zonata 



mm distance 

 aestuans , 



a wfill as 



two species of Lepidoptera— a Papilio and a Hesperid— have 

 been seen on the flowers in Calcutta (26— 27-x-Ol). The second 

 of the bees always carries abundant pollen as it visits. 



