— 4 — 



bordili oculorum, pedibus etiam brevioribus, et scuto dorsali not spina 

 vel spinis duabus, sed ut plurimum tuberculo armato ». But taking 

 into consideration that the scutum of Zaleptus minutus With some- 

 times bears a tubercle, and that the legs of this species as well as 

 of Ceratóbunus brevipes With are almost as short as those in Sco- 

 tomenia cetrala Thor., it seems to be evident, that the similarity 

 between Scotomenia Thor. and Zaleptus Thor. is more pronounced 

 than that which the former genus bears to Gagrella Stol. f the genus 

 Scotomenia is to be maintained, it will be on account of its remar- 

 kable ocular tubercle. If \ve in the future wish to get a naturai clas- 

 sifìcation of the species belonging to the above-mentioned genera, \ve 

 will probably be compelled to find an other base for our system than 

 that used by Thorell. 



Some of the other genera established by Thorell seem to be fairly 

 well founded, f. inst. Marthana Thor. (2, p. 719) an account of its re- 

 markable column; nevertheless the spine of G. semigranosa Sim. (5, 

 p. 83) seems to bear some similarity to the column of Marthana Thor., 

 as far as can be seen from the description. As I nave set forth (0, 

 p. 505) the genera Syleus Thor., Sijstenocentrus Sim. and Oncolmniis 

 Thor. ought to be referred to the same genus. The foundation of 

 Thorell's genus Artrocentrus (1, p. 623) namefly the spine, with which 

 the second joint of the antenna is provided, seems to be rather too 

 insufflcient. 



C. List of Species from Borneo. 



Comparatively few species of this group, only eight, including the 

 three, described here have been mentioned from Borneo, but several 

 times this number without doubt occur; none of them have been men- 

 tioned from other parts of the Indiali Region. 



Gagrella insculpta Poe, G. longipalpis Thor., G. paupera n. sp., 

 G. saraìoahensis n. sp., G. scrabieulata Thor., Marthana columnaris 

 Thor., M. vestila n. sp., Zaleptus ìrichopus Thor. 



D. Description of neir Species. 



Gagrella Stol. 



I hope that it will be fairly easy to identify the five species of 

 Gagrella by the help of the following synopsis. 



a. Tibia of the palps about 10 times longer than broad longipalpis 



Thor. (2, p. 693). 



b. Tibia of the palps not more than 2-4 times longer than broad. 

 a 1 . Scutum not foveolate, but granular; yellowish brown and provided 



with two spines paupera n. sp. (p. 7). 



