128 The Philippine Journal of Science i9i7 



the postalar calli are entirely wanting or only indicated by a 

 dark yellowish, less distinct trace ; the metasternum is distinctly 

 bluish, more furrowed, and less pubescent. The front legs have 

 the femora more broadly blackish toward the base; the hind 

 tibiae are black, with narrowly reddish base and yellow tip ; the 

 hind tarsi are entirely black, the prsetarsi being only narrowly 

 yellow at base. The infuscation of the wings is more intensive. 



148. Toxophora zilpa Walk. 1849. 



One female specimen from Mount Maquiling. Described from 

 China and not recorded subsequently; nearly allied to T. javana 

 Wiedemann from Java, but it seems to be distinguished by the 

 golden, not whitish, abdominal stripes and by the complete 

 transverse band of the same color on the last abdominal segment. 



149. Petrorossia fulvula Wied. 1821. 



Numerous specimens of both sexes from Mount Maquiling 

 and Malinao, Luzon, and Dapitan, Mindanao. Widely spread 

 over the Oriental Region and known to me also from Formosa. 

 The species was originally described as an Anthrax and was 

 subsequently placed in Argyi-amoeba by de Meijere, but it belongs 

 without doubt to the present genus, being closely allied to the 

 Ethiopian species fulvipes Loew and gratiosa Bezzi. 



150. Exoprosopa pennipes Wied. 1821. 



Los Banos. A characteristic species, widely spread over the 

 Oriental Region, but not yet recorded from the Philippines. 



151. Melanostomus orientale Wied. 1824. 



Baguio, Benguet. This species, as redescribed by de Meijere, 

 seems to be the oriental representative of the common M. melli- 

 num Linnaeus, and I am not sure if it may be considered as speci- 

 fically distinct, 



152. Asarcina eurytaeniata Bezzi. 1908. 



Mount Maquiling. These specimens are the same as my type 

 from Malacca. Syrphus striatus of Osten Sacken's paper, page 

 115, and therefore Asarcius consequens of my enumeration in 

 the first century, are almost certainly the same as the present 

 species. 



153. Axona chalcopyga Wied. 1830. 



Dapitan, Mindanao. An immature specimen, in which the 

 beautiful blue coloration of the mature insect is not yet developed. 

 This is a very characteristic species, more like a Volucella than 



