386 University of California Publications [Entomology 



Type. — Plesiozethus flavolineatus Cameron; genus monobasic. 



Habitat. — Panama ; Colombia. 



I have not seen a specimen of this genus, and consider its position 

 very doubtful. I am even doubtful that it is a masarine wasp. Za- 

 vattari has pointed out the probable identity with Paramasaris, main- 

 taining that Cameron is incorrect in stating that Plesiozethus has only 

 2 submarginal cells. 



List of Species of PLESIOZETHUS 



flavolineatus Cameron, J', 5- Panama ; Colombia. 



1904. Zetlioides flavolineatus Cameron, (^. Transactions of the American 



Entomological Society, vol. 30, p. 93. 



1905. Plesiozethus flavolineatus Cameron. Entomologist, vol. 38, p. 269. 



1906. Metasethoides flavolineatus Schulz. Spolia hymenopterologiea, p. 213. 



1907. Plesiozethus flavolineatus Cameron. Entomologist, vol. 40, p. 62. 

 1912. Plesiozethus flavolineatus Zavattari, (^, $. Archiv fiir Naturge- 



schichte, vol. 78, pt. A, no. 2, p. 64 (description of female). 



Paramasaris Cameron 



1901. Paramasaris Cameron. Transactions American Entomological So- 

 ciety, vol. 27, p. 311. 

 ?1904, 1905. Zethoides, Plesiozethus, Cameron. 



Type. — Paramasaris fuscipennis, Cameron, genus monobasic. 

 Habitat. — New Mexico. 



As already indicated, if Zavattari is correct in his characterization 

 of Plesiozethus, it is probably identical with this genus. 



Paramasaris fuscipennis Cameron 



1901. Paramasaris fuscipennis Cameron, 5- Trans. Am. Ent. Soc, vol. 27, 

 p. 312. 



' ' Black, covered with a white pile ; the underside of the antennae 

 brownish, the apex of the petiole and of the second segment pallid 

 yellow ; the wings fusco-hy aline ; the radial cellule smoky ; the stigma 

 and nervures black. 5- Length, 7 mm. 



"Antennae shorter than the thorax; the joints of the club clearly 

 separated, the thickening commencing from the fourth joint. The 

 front, vertex and the upper part of the eye incision distinctly punc- 

 tured ; the clypeus is shining and less strongly and closely punctured ; 

 its apex is distinctly depressed and the sides are roundly narrowed. 

 The sides of the thorax are more densely covered with a silvery pile 



