400 R. OSTEN SACKEN 



doubtful points. Macquart calls the fifth abdominal segment 

 and the metanotum altogether yellow, which does not agree 

 with my specimens. The specimen from Java has the abdominal 

 black incisures narrower and some other differences too slight 

 to be taken in consideration. I also possess J" and 9 specimens 

 from Ceylon, which I consider to be the same species. As there 

 is an earlier Pachyrrh. javana Wied. and as Tip. fasciata Degeer 

 is a Pachyrrhina, both names should be dropped and the species 

 called P. Doleschalli. I give a more complete description of it. 



P. Doleschalli (Syn. P. javensis Dol.) c/' 9 . Orange-yellow ; 

 abdominal segments 2-5 have black posterior margins ; segments 

 1,6 and 7 black; genitals yellow. Length: 12-13 mm. 



c(^ 9 Antennae : two basal joints yellow ; the rest black ; 

 joints of flagellum, in the male, of the usual, reniform shape. 

 Head yellowish orange ; a small black triangle on the occiput ; 

 rostrum yellow, a short brownish stripe does not reach its basis^ 

 but covers the nasus. Thorax yellow ; the usual stripes black , 

 shining ; the lateral ones not incurved at tip ; scutellum black ; 

 metanotum on its posterior margin, with a transverse black spot ; 

 pleurae with three more or less dark brown spots under the 

 root of the wings ; one of them is linear ; sides of the collare 

 black ; the middle, yellow. Abdomen yellowish-orange ; segment 

 first black above; segments 2-5 with the posterior margins 

 black ; segments 6 and 7 black ; genitals yellow. Knob of hal- 

 teres yellow , stem brown. Legs brownish-yellow ; knees and 

 tarsi darker. Wings subhyaline ; stigma pale brown ; discal cell 

 small ; second posterior coarctate at base. 



Hab. Java, Sumatra, Ceylon. 



NB. The spots on the pleurae vary in intensity ; in the 9 

 from Ceylon only one is visible. In some specimens a brown 

 or reddish spot is visible above the middle coxae ; also on the 

 root of the front coxae. The breadth of the abdominal black 

 crossbands is variable. In the Q from Ceylon the segments 6 

 and 7 have some yellow anteriorly. 



