190 PACHYTERIA OBERTHÜRI. 



One of these species has proved to be new to science 

 and I propose to call it after ray excellent friend 



Pachyteria Oberthilri, n. sp. 



This species, of which a single female specimen from 

 Siboga (West Sumatra) is in the collection , is very closely 

 allied to P. dimidiata Westw. ^) from Assam and P. 

 Scheepmakeri Rits. ^) from East Java. — Like these species 

 it is greenish black , with the under surface , the legs , 

 and the five basal joints of the antennae dark violet , and 

 the six apical joints of the antennae and a broad trans- 

 verse band about the middle of the elytra ivory-yellow , 

 whereas the apices of the elytra are also deeply notched. 

 From both it differs however in having thicker antennae, 

 with the third , fourth and fifth joints decidedly shorter , 

 and in having a somewhat shorter clypeus with thickened 

 margins (like in both the quoted species the clypeus has a 

 slightly raised smooth line along the middle) ; moreover 

 the yellow band across the elytra narrows towards the 

 lateral margins and the punctuation on this band is some- 

 what finer and less dense. The new species has the broader 

 and more robust shape of dimidiata {Scheepmakeri is small- 

 er and more slender) , but its scutellum is still more acu- 

 tely pointed , which is caused by the strongly concave 

 lateral margins (in Scheepmakeri the scutellum is broader 

 with curvilinear sides). The prothorax is more strongly 

 punctured and shows along the middle of the raised disk 

 a narrow smooth streak , which is also present (though 

 less distinct) in dimidiata. The base of the raised disk of 

 the prothorax is straight in dimidiata , slightly emarginate 

 in front of the scutellum in Scheepmakeri and in the new 

 species. 



The hind margin of the 5th ventral segment is straight 

 with rounded lateral angles , whereas it is broadly rounded, 



1) The Cabinet of Oriental Entomology. (1848). p. 60; pi. 29, fig. 8. 



2) Notes from the Leyden Museum. Vol. Ill (1881). p. 38. 



]N"otes from th.e Leyden IVEuseura, "Vol. X. 



