402 INSECTA SAUNDERSIANA. 



middle cross-vein upright ; lower cross-vein very oblique, very slightly 

 curved outward, almost parallel to the hind border: balteres tawny, with 

 pitchy knobs. Length of the body 4 lines ; of the wings 7 lines. 



Columbia. 



TeTANOCERA AUhTHALlS. 



Ferruginea ; caput luteum, lateribus albidis ; antenna picecB, hasi fulvtB ; 

 thorax vitlis iribus, scutello pectore ventreque lestaceis ; pedes tesiacei, 

 femoribus ciiiereis, posterioribus Jlavo fasciatis, tibiis apice tarsisqve 

 piceis; alee alba^fusco reticulata;. 



Ferruginous : head luleous above, whitish and shining on each side of 

 the face which is yellow ; tubercle of the eyelets pitchy ; peristoma rather 

 prominent : mouth ferruginous : feelers tawny ; third joint pitchy, almost 

 conical, as long as the second ; sixth downy, very much longer than the 

 third; chest with three testaceous stripes in front, and with one along each 

 side: scutcheon and breast testaceous: abdomen linear, a little longer 

 and narrower than the chest, testaceous beneath: legs testaceous ; thighs 

 cinereous; posterior thighs with a yellow band in the middle ; shanks with 

 pitchy tips ; feet pilchy, ferruginous at the base : wings white, thickly 

 reticulated with brown ; veins black, tawny at the base : balteres white. 

 Length of the body 3 lines; of the wings 6 lines. 



Van Dieman's Land. 



Genus THECOMYIA, Perty. 



Thecomyia LONGicoENis, Mas et Fcem. 



Perty, Delect. Anitn. Artie. Brazil, var. .'* 



Picea ; caput fulvum, vertice rufo maculis duabus nigris ; antenna: nigrce, 

 basifulvce, apice albce ; thorax vittis tribus ventreque Jlavis ; pedes 

 fulvi, nigra varii ; aim cinerece, ad costamfusca. 



Pitchy : head tawny, much produced in front; crown bright pale red, 

 with a black spot on each side in front ; mouth long, black, tawny at the 

 base: feelers tawny; second joint beset with black bristles; third black, 

 tawny at the base, longer than the second, slightly tapering from near the 



