258 ICHTIIYURUS LATERALIS. 



NOTE XXXV. 

 FIELDNOTE ON ICHTHYURUS LATERALIS WESTW. 



BY 



Dr. L. ZEHNTNER ')• 



Eoclosed I send you some specimens (males and females) 

 of an Ichthyurus-SYiecies captured by me on December 27th 

 of last year at Poespo , about 600 M. above the level of 

 the sea, on the slope of the Tengger Mountain (Pasoeroean 

 Residency). These handsome beetles v^ere flying round a 

 young fig-tree {Urostigma spec), and, on examining the 

 tree more carefully, I found them on the under side of the 

 leaves. I was not able to make out what they were doing 

 there, but I saw them stumble between the hairs of the 

 leaves with their mandibles as it were in search of small 

 insects, which, however, I could not detect with the 

 naked eye. 



Ichthyurus flies very well, and it is especially remarkable 

 how easily they take flight and sit down again , a fact 

 which is very comprehensible on account of their keeping 

 the wings straight when they are at rest. In handling 

 these curious insects they bend the abdomen upwards just 

 as the Staphylinidae and Forfieulariae ^). 



Pasoeroean (East-Java), February 1897. 



1) Translated from a letter received by me from the author. (C. Ritsema Cz.)- 



2) See also: Ann. Mus. Civ. Genova, XXX, p. 556. 



Notes from the Leyden M!useiim , "Vol. .XVIII. 



