146 STllPHID^. 



Table of Species. 



1. Bare species ; any pubescence present 



very short, even if dense 2. 



Densely pubescent species, pubescence 

 long and conspicuous 6, 



2. Abdomen mainly orange, with black 



marks signata, sp. n., p. 146. 



Abdomen mainly or wholly black .... o. 



3. Thorax tawny or orange 4. 



Thorax black 5. 



4. Abdomen with two narrow pale cross- 



bands ; wings suffused in centre and 



at tip trifasciata, Wied., p. 147. 



Abdomen entirely black ; wings pale 

 brown, unmarked discolor, Bran., p. 149. 



5. Second abdominal segment wholly 



yellow ; scutellum bright tawny .... itelhicens, L., p. 150. 

 Second abdominal segment with basal 

 half only yellowish : scutellum nearly 



black basalis, Brun., p. 150. 



6. Tip of abdomen black-haired ursina, de Meij., p. 151. 



Tip of abdomen orane:e- oi- yellow-haired 7. 



7. Venter uniformly black. . .' ruficauda, Brun., p. 152. 



Venter with 2ndaiid3rd segments livid, lividnentris, Brun., p. 152. 



Volucella opalina, Wiedemann (Auss. Zweifl. ii, p. 203, 1830) 

 must be totally deleted from the list of Asiatic Diptera. It was 

 erroneously recorded by Wiedemann from "Bengal," a mistake 

 which wasunfortunately repeated by Bigot in 1883 (Ann. Soc. Ent. 

 France, (6) iii, p. 68) and by Van der Wulp in 1896 (Cat. Dipt. 

 S. Asia, p. 116). Princess Theresa of Bavaria lias, however, called 

 attention (Berlin. Ent. Zeitschr. xlvii, p. 245, 1902) to the fact 

 that the type really came from Brazil, and further specimens 

 have subsequently been collected in S. America. The locality is 

 correctly given by Kertesz, Cat. Dipt, vii, p. 197, 1910, 



116. Volucella signata, sp. nov. 



(5 . Head set very closely on thorax. Eyes closely contiguous 

 for about half the space between vextex and base of antennae, 

 with dense short brownish-yellow pubescence on upper half; 

 facets gradually diminishing in size from in front hindwards. 

 Head wholly orange ; vertex very small, witli long hairs, black and 

 yellow mixed ; ocelli ruby-red. Frontal triangle rather small, 

 with short yellow hairs. Antennae and aristje wholly orange. 

 Face rather deeply cut away below antennsB. The whole epistome 

 obtusely px-oduced, bearing short yellow pubescence with which some 

 short black hairs are intermixed over central bump ; the latter is of 

 moderate size. A rather faint, brownish, narrow streak on clieeks 

 from lower corners of eyes to tip of epistome. Occiput yellowish- 

 grey, not extending beyond level of eyes, the upper margin nearly 

 bare, but with yellowish-grey pubescence about the middle, 



