( lxxiii ) 



its prey, the jaws projecting into the countersunk area. The 

 adult Collyris emarginatus is arboreal in its habits, is remark- 

 ably fleet, and readily takes to wing ; in Borneo, as I have 

 shown (P. Z. S., 1902, vol. ii, p. 264), it is mimicked by a 

 flower-haunting fly of the genus Sepedon ; it feeds on small 

 insects, and the statement in the Deutsche Entomol. Zeitschr. 

 1905, p. 172, that it is herbivorous is erroneous, and is due to 

 a misun derstanding. 



" I have also for exhibition some larva? and pupa3 of 

 Mormolyce, together with a specimen of a Polyporus fungus 

 split open to show the lenticular chamber excavated by the 

 larva. The adults, male and female, are usually found resting 

 on the under surface of these fungi, or on the tree trunk from 

 which the fungus projects ; oviposition has not been witnessed, 

 but I believe that only one egg (or at most two) is laid at a 

 time, for I have not been able to find more than one larva in 

 the chamber,* though on one occasion I took a newly-emerged 

 adult from the surface of a fungus in which was hollowed out 

 a chamber containing one larva. Access to the larval chamber 

 is attained by an orifice so small that it is surprising that the 

 newly-emerged beetle can squeeze through it to the exterior, this 

 orifice is situated on the upper surface of the fungus. It will 

 be seen that there are no features of particular interest about 

 the external appearance either of larva or pupa ; these pupae 

 do not show the elongation of the head and thorax character- 

 istic of the adult. Overdyk, who gives a bionomical account 

 of this species in Ned. Ent. Vereen, vol. i, 1857, states 

 that the larva? are predaceous. The larva and the pupa have 

 been figured and described by Verhuell (Ann. des Sciences 

 Naturelles, 1847.)" 



Professor E. B. Poulton communicated the following note 

 by Mr. A. H. Hamm, of the Hope Department, Oxford 

 University Museum. The observations extend and support 

 those recorded by him in " Proc. Ent. Soc. Lond., 1904," 

 p. lxxv. 



" The following observations made at Oxford during the 



* The short note on this species which I published in British Assoc. 

 Reports, 1901, was largely based on information supplied to me by a native 

 collector, and this information, I regret to say, was proved afterwards 

 by my own observations to be inaccurate. 



