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INSECTA SAUNDERSIANA, &c 



Fain. XYLOTOM.^, Me/^e». 

 Genus THEREVA, Lair. 



Thf.reva sequa, Mas et Fem. 



Ciiierea, capile pectoreque albis, fem. thoracis vitta fusca, mari ahdominc 

 nigra subvittalu upice fulvo, fem. abdomine fusca maculis trigonis 

 albis omato, pedibits nigris, larsis basi tibvisque fuhis, alls liinpidis. 



Male. Body black, thickly clothed with white hairs: head brilliant 

 white in front : sucker black: chest gray; breast white: abdomen gray 

 above, white beneath, very much longer than the chest; an indistinct 

 black stripe along the back ; hind borders of the segments adorned with 

 white lustre ; tip tawny, with a little tuft of black hairs on each side : legs 

 black, beset with a few black bristles, which are chiefly on the shanks ; 

 hips and thighs adorned with a white covering, clothed with short white 

 hairs; shanks tawny, with black tips ; feet tawny at the base ; foot-cushions 

 dark tawny : wings colourless ; poisers black ; their knobs pale yellow, 

 black at the base. 



Fem. Body thinly clothed with short white hairs : head adorned ivith 

 a silverg white covering : chest adorned with a veri/ broad pule brown stripe ; 

 scutcheon armed with four long black bristles : abdomen brown ; first seg- 

 ment white ; second and third adorned ivilh white triangular sjmts, resting 

 on the sides of their hind borders ; fourth with a white spot resting on each 

 side of its fore-border ; fifth white, with the exception of a middle triangu- 

 lar brou-n spot on its hind border ; sixth white; seventh black, shining; 

 tip armed with a circlet of black spines : knobs of the poisers black, pale 

 yellow from half their length to the tips. 



Length of the body 4 — ih lines ; of the wings 7 — S lines. 



East India. 



