SPECTRUM BIVITTATUM. 



SPECIFIC CHARACTER. 



Brown or blackish, with two yellow dorsal 

 vittae. 



DESCRIPTION. 



Male, Body ahove black, with two broad 

 yellow vittae extending from the base of the 

 antennae to the posterior extremity of the body : 

 antennse dull reddish-brown, not much elon- 

 gated : beneath dull yellowish clay colour : feet 

 dusky, thighs unarmed, blackish towards the 

 tip. 



Female, much larger than the male, the body 

 brownish in those parts which on the male are 

 black, with the exception of the vertebral line 

 which is black; the yellow vittae become some- 

 times obsolete towards the posterior part of the 

 body: thighs unarmed. 



PLATE 38. 



