315 



tious stripe on each side of the peristoma ; epistonia not prominent : mouth 

 ferruginous, clothed with pale hairs ; palpi taivny : feelers black ; sixth 

 joint feathered with short hairs: chest with three broad hoary stripes; 

 scutcheon ferruginous at the tip; abdomen with white reflections, and on 

 each side with a broad tawny stripe which extends from the hind border of 

 the first segment to the fore border of the third : legs black ; shaiiks pitchy : 

 wings gray ; veins black, tawny towards the base ; praebrachial vein form- 

 ing a very obtuse angle at its flexure, with a very slight inward curve from 

 thence to its tip ; lower cross-vein fomiing an obtuse angle at one-third 

 of the length from the base, almost straight from thence to the tip : alula) 

 white : halteres ferruginous. Length of the body 4^^ lines ; of the wings 

 9 lines. 



New Holland. 



Dexia plana, Fem. 



Nigra; caput et pectus alba; thorax subauratus, nigra quadrivittatus, 

 scutello fulvo ; abdomen fulvum, nigra trimaculatum et bifasciatum ; 

 antenna; fulvce ; pedes fulvi, tibiis anticis apice tarsisque nigris ; 

 ala subcinereai, ad costam subfuba. 



Black, of moderate breadth : head ivith a silvery white covering ; crotvn 

 slightly gilded ; frontalia pitchy, narrow, slightly widening towards the 

 feelers ; facialia without bristles ; epistoma very slightly prominent : palpi 

 tatvny : feelers tawny ; third joint linear, darker towards the tip which is 

 rounded, about four times the length of the second ; sixth much longer 

 than the third, feathered with moderately long hairs : chest ivith a slightly 

 gilded covering, and with four very slender black stripes ; scutcheon taivny 

 with a gilded covering: breast white; abdomen tatvny, almost spindle- 

 shaped, longer than the chest ; second segment with three black spots on the 

 hind border ; third and fourth with black bands along the hind borders : 

 legs tawny ; feet and tips of the fore-shanks black ; hind-shanks dark tawny : 

 wings slightly gray, ivith a tawny tinge along the fore border ,• praebrachial 

 vein forming a very obtuse angle at its flexure, very slightly bent inward 

 near the tip ; lower cross-vein with the two curves, the lower one deeper 

 than the upper which is very slight : alulas whitish with pale yellow bor- 

 ders : halteres yellow. Length of the body 4 lines ; of the wings 8 lines. 



Brazil. 



