SPH^EOPHTHALMA. 347 



hair ; the second segment with widely separated punctures ; the other segments rather 

 coarsely punctured. The basal ventral segment has the keel blunt, oblique at the 

 base and apex ; the other segments are strongly punctured and fringed with long pale 

 fulvous hair ; ferruginous, the apical segment black. The legs black, covered with 

 white hair; the calcaria long, stout, fuscous. Wings : the radial cellule extends 

 beyond the apex of the third cubital ; the first abscissa of the radius is oblique, the 

 apical abscissa curved ; the first transverse cubital nervure is elbowed near the bottom, 

 the second is curved and approaches the first at the top, so that the part bounded by 

 them is less than the space bounded by the first recurrent and the second transverse 

 cubital nervures ; the first recurrent nervure is received shortly beyond the middle of 

 the cellule; the nervure bounding the third cubital cellule is very indistinct, the 

 cellule very much narrowed at the bottom, the nervure there being obliterated in 

 a small hyaline spot. The tegulse are rufous and are densely covered with pale 

 fulvous hair. 



^62. Sphaerophthalma volatilis. (Tab. XIV. fig. 27, <j .) 



Long. 9-10 millim. g . 



Hab. Mexico, Teapa in Tabasco (E. H. Smith). 



Head not much narrower than the thorax, almost transverse in front and behind, 

 rather strongly punctured, the punctures clearly separated ; covered with long fuscous, 

 hair ; the hinder ocelli in pits : a broad shallow furrow runs down the front from the 

 anterior ocellus; the eyes are large, very shining, projecting, the part behind the 

 eyes equalling them in length, and broadly rounded at the sides ; the mandibles are 

 entirely black. The antennse are of moderate thickness ; the scape curved,, covered 

 sparsely with long white hair; the flagellum bears a black microscopic down ; the 

 third and fourth joints are subequal. The pronotum is rounded in front and behind, 

 closely punctured, and covered (particularly at the apex) with long pale hair. The 

 mesonotum is more strongly punctured, the punctures being larger and deeper ; it is 

 sparsely pilose. The median segment has a gradually rounded slope and is reticulated. 

 The propleurse are finely punctured above ; the mesopleurse are densely covered with 

 greyish hair. The abdomen is as long as the head and thorax united; the basal 

 segment is black, except at the extreme apex, shining, punctured, the punctures wide 

 apart, and bearing long white hair; the second segment is bright lemon-yellow, 

 brownish at the base and apex ; the other segments are black, fringed at the apices 

 with rufous hair. The keel on the basal ventral segment is sharply pointed and is 

 obliquely truncated at the apex. The ventral segments are entirely black ; the second 

 segment is strongly, the others finely and closely punctured, and all are fringed with 

 fulvous hair ; the hypopygium is depressed, punctured, and densely covered with long 

 rufous hair. The legs are black and covered with pale silvery hair ; the calcaria white. 



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