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PROCEEDINGS OF THE NATIONAL MUSEUM. 



VOL. 49. 



occupies from one-third to one-half the width of the mesepisternum, 

 widens upward, and its inner upper angle touches the antealar sinus. 

 Eacli mesepimeron with an elli])tical or sometimes quadrangular 



Figs. 3-4. — .VRCHII.ESTF..SCAUFORN1CA. FEMALE. 3. DoK.'^AL VIEW. i. LaTEKAI. VIEW. 



black spot extending over the two middle fourths of its length. 

 Just posterior to this, but on the metepisternum, a creamy stripe, 

 which becomes white pruinose in the mature males. This is followed 



