MICROSTYLUM OBERTIIÜRII. 241 



NOTE XXXII. 

 A NEW SPECIES OE MICROSTYLUM 



(DIPTERA. : ASILIDAE) 



F, M. VAN DER WULP. 



Through the kindness of Mr. R. Oberthflr at Rennes , 

 France , the Leyden Museum received not long ago a 

 specimen of a gigantic Asilid , belonging to the genus 

 Microstylum Macq. and of oriental origin. As I cannot find 

 in the literature of Asiatic Asilids any description appli- 

 cable to it, I have no doubt that the species, notwith- 

 standing its large size, remained hitherto unknown. In 

 publishing it here, I name it in honour of the eminent 

 entomologist, to whom the Museum is indebted for this 

 interesting present. 



Microstylum Oberthiirii, n. sp. 9- 



Deep black ; thoracic dorsum dark-grey ; beard orange- 

 yellow ; wings brown with green and violet lustre. — 

 Length 43 mm. 



Head proportionally small , narrower than the thorax ; 

 front and face not quite as broad as the transverse diameter 

 of the eyes , and with sub-parallel sides , black with a 

 brownish violet reflexion ; along the sides of the front a 

 row of black hairs; the face slightly projecting, with some 

 transverse folds ; mystax forming a row of strong black 

 bristles at the oral margin ; underside of the head thickly 



JNotes from the Leyden Museum, Vol. XVIIl. 



16* 



