. ASILIDAE. 23 



SIMALLUS Loew. Those of the second group are : MICROSTYLUM 

 Macq., MEGAPOLLION Walk., XIPKOCERUS Macq., DOLICHODES 

 Macq., DISCOCEPHALA Macq,, SENOBASIS Macq., PLESIOMMA Macq. , 

 STENOPOGON Loew, BATHYPOGON Loew, HABROPOGON Loew, HOLO- 

 TOGowLoew, ERiopOGONZoew, HETEROPOGON Loew, ISOPOGON Loew, 

 OLIGOPOGON Loew, STICHOPOGON Loew, SAROPOGON Loew, DICRA- 

 NUS Loew, TRICLIS Loew, EUARMOSTUS Walk., PROLEPSIS Walk., 

 CODULA Macq., CABASA Walk., PHELLUS Walk., PHILAMMOSIUS 

 Walk., GASTRICHELIUS Rond., DACTILISCUS Rond., ELASMOCERA 

 Rond., PHENEUS Walk., CROBILOCERUS Loew, PYCNOPOGON Loew, 

 ANAROLIUS Loew, ACNEPHALUM Macq., SISYRNODYTES Loew, RHA- 

 DINUS Loew, CERATURGUS Wied., DIOCTRIA Meig., TERATOPUS 

 Loew, DASPLETIS Loew, LAPHYCTIS Loew, SCYLATICUS Loew, II Y- 

 PENETES Loew, SPANURUS Loew, RHABDOGASTER Loew, DAMALIS 

 Wied., LEPTOGASTER Meig. (=GonypesIjsA l T.), EUSCELIDIA Westw., 

 and LASIOCNEMUS Loew. 



The second section of the Asilidce are the LAPHRINA; it agrees 

 with the third in the second longitudinal vein running into the 

 first, but differs from it in the style of the antennae either being 

 thick and stout, and generally only rudimentary, or entirely want- 

 ing, whereas the antennas of the third section possess a distinct 

 terminal bristle. The genera of the second section are: LAPHRIA 

 Meig., LAMPRIA Macq., HOPLISTOMERA Macq., MzGAPODA.Macq., 

 RHOPALOG ASTER Macq., MICHOTAMIA Macq., ATOMOSIA Macq., 

 LAXENECERA Macq., TAPINOCERA Macq., PHONEUS Macq., LA- 

 PHYSTIA Loew, NUSA Walk., SCANDON Walk. , DASYLLIS Loew, LA- 

 MYRA Loew, LAMPROZONA Loew, DASYTHRIX Loew, THEREUTRIA 

 Loew, AMPYX Walk., CORMANSIS Walk., CHCERADES Walk., Acu- 

 RANA Walk., PSEUDORUS Walk., POGONOSOMA Rond., and DYSERIS 

 Loew. 



The third section is that of the ASILINA, which is characterized 

 by its second longitudinal vein running into the first, and by its 

 antennae having a distinct terminal bristle. The genera belonging 

 to this section are: MALLOPHORA Macq., PROMACHUS Loew, ALCI- 

 MUS Loew, PHILODICUS Loew, CRASPEDIA Macq. (= Blepharotes 

 Westw.), POLYPHONIUS Loew, APOCLEA Macq., ERAX Macq., ERIS- 

 TICUS Loew, PROCTACANTHUS Macq. , STENOPROSOPIS Macq. , SYNOL- 

 cus Loew, DYSCLYTUS Loew, LOPHONOTUS Macq., TRICHONOTUS 

 Loew, DASOPHRYS Loew, PROTOPHANES Loew, DYSMACHUS Loew, 

 EUTOLMUS Loew, MACHIMUS Loew, MOCHTHERUS Loew (== Helta- 



