PACHYRHINA TRIPLASIA. 11 



]ar; the lateral ones bent outwards in front; pleurae un- 

 spotted ; metanotura with some indistinct brown spots. 

 Abdomen with three black longitudinal stripes , that on 

 the back broader, but interrupted at the incisions, male 

 genitals provided with knots , pilose , chestnut-coloured , 

 with a pair of pointed nipples ; [ ovipositor of the female 

 shining rufous. Legs testaceous; femora darker towards 

 the end. Halteres yellow ; the knob partly blackish. Wings 

 grey; the stigma pale brown. 



A single pair from Ambarawa in Java (Ludeking). 



23. Eriocera acrostacta , Wied. 



Limnohia acrostacta , Wied. Dipt. ex. I. 14. 4 ; id. Auss. 

 Zweifl. I. 26. 4; Macq. Dipt. ex. Supp. 1. 18. 9; pi. 2, f . 

 6; — Cylindrotoma acrostacta, Macq. Dipt. ex. I. 168. 2 

 pi. 9 , f . 7; id. Supp. 3. 7; — Oligoneura javensis , Dol. 

 Nat. Tijdschr. v. Ned. Ind. XIV. 387. pi. 7 , f. 3. 



Besides the specimens which agree in all respects with 

 the description given by Wiedemann , I find in the Ley- 

 den Museum others , which differ in some minor points 

 and therefore must be considered as mere varieties. 



A male specimen from Ambarawa in Java (Ludeking) 

 has the thorax entirely black ; the stripes of the abdomen 

 likewise are black, that of the upper side is enlarged at 

 the hind margin of each segment , and the last segments 

 are totally black. This is the variety mentioned by Mac- 

 quart in the 3''^i supplement of his „Diptères exotiques". 



In another male specimen , also from Java (Muller) , the 

 black colour of the abdomen is .still more extended , so 

 that there remain only two yellow lateral stripes. 



In both these varieties the legs are not darker than in 

 normal specimens. 



24. Eriocera alhipunctata , v. d. Wulp. 



Tijdschr. v. Entom. XXIII. 158. 6. pi. 10, f. 3 and 4. 



Notes from the Leyden Muserum , Vol. "VU. 



