110 COLLE]\rBOLA FROM NORTHERN SARAWAK. 



number of tuberculi and the presence of a postantennal organ, 

 etc., and finally from the recently described A. zehutnezi 

 Handsch. from Java and Sumatra by the sculptm'e of the 

 tubercuH, the position of the eyes and the number of the 

 antennal sensitive setae. 



Lepidocyrtus Bonrl. 



That my proposal of dividing the genus Lepidocyrtus 

 was bound to be criticised I was fully aware. The new material 

 that now has been procured from Borneo and Sumatra 

 gives me good reasons to take up my revision of the difficult 

 genus again and, as I hope, this time with better results. 



I would like to point out that what TuUberg calls puncture 

 on the Lepidocyrtus scales and also taken as suth by me, by 

 closer examination turns out to consist of a sculpture of an 

 exceedingly small comb-like, densel}' arranged striation. On 

 account of the transparent and extremely thin scales, however, 

 the real nature of this sculpture can be revealed only at very 

 favourable circumstances, as for instance when one scale 

 lies immediately on the top of another one and even then 

 only at the highest magnification possible. 



The scales are always rounded in the free end. This type 

 of scales is to be found in the genei-a Lepidocyrtus and Acan- 

 thurella. As a type of an exotic species of the former genus 

 L. maxim us may be chosen. Other characters are that Ant. 

 IV is without a retractile terminal organ and that the tibiae 

 are unjointed. It is also worthy of mention that the eye lobes 

 are .so squeezed together that the spots are nearly rounded. 



Undoubtedly also the arrangement of hairs in the living 

 animal offers good characters, but unfortunatel}' hairs and 

 setae drop off only too easilj' at capture or in preservation. I 

 believe, however, that generally speaking the body can be said 

 to be only relatively thinly covered with bans or setae in the 

 forms here in view. 



Parallel to the large Lepidocyrtus species, a variety of other 

 forms are also to be found in exotic material. They have as 

 a rule pointed scales but also rounded ones and their sculpture 

 consists of more or less elongate, distinct strips, in that respect 

 reminding one of the Sira-scales. Ant. IV is provided with a 

 distinct terminal organ and the fold (plica) mentioned by 



