14 NODOSTOMA BREVICOLLIS. 



below the middle; a row of deep punctures runs close to 

 the lateral margin. Femora unarmed. 



Two specimens from Soeroelangoen (Sumatra-Expedition). 



From similarly coloured species , the present one may 

 be separated by the entirely impunctate head and thorax 

 and the very short shape of the latter, also by its ovate 

 general , not elongate shape. 



Nodostoma ameipennis , Baly. 



I refer the nine specimens contained in the collection 

 to Mr. Baly's species on account of the peculiarly shaped 

 thorax , which is very wide at the base , angulate close to 

 the latter and obliquely narrowed towards the front, this 

 character as well as the others agreeing with the author's 

 description. The following varieties are however to be 

 noticed: 



var. a. Thorax greenish black, elytra metallic green. 



var. h. Underside and legs piceous , head fulvous , other- 

 wise like var. a. 



var. c. Elytra violaceous blue , finely margined with 

 metallic green , otherwise normally coloured. 



var. d. Underside piceous , elytra metallic cupreous , 

 otherwise like var. a. 



In spite of the great variability of this insect , the pecu- 

 liar shape of the thorax and the close punctuation of the 

 latter at the sides will help to distinguish it. The length 

 also varies from l^/g to 2^/4 lines. 



The specimens are captured at Doesoen Tengah , in the 

 District of Rawas and at Koetoer (Sumatra-Expedition). 



Nodostoma javanensis , Baly. 



Of this insect which may be distinguished from the 

 many species forming the genus Nodostoma a typical form 



Notes from tlie Ley den ]M!useum, "Vol. "VI. 



