SPIL&KOPHTHALMA. 379 



or less infuscated ; the wings do not reach the apex of the abdomen, the third trans- 

 verse cubital and the second recurrent nervures are obliterated entirely, and the cubital 

 nervure is also obliterated at the second transverse cubital nervure. In some respects 

 it agrees with S. jparon, e. g. in having only two transverse cubital nervures ; but its 

 body is narrower and more elongated, and the petiole is longer and narrower and not 

 so much dilated towards the apex. 



In S. coaeqiialis ( s ) the outer piece of the aedeagus is narrow, sharply pointed, and 

 curved at the top ; at the curve on the inner side it bears long hair ; the volsella is 

 long, narrow, reaches near to the top, and is marked with some stiff bristles. 



135. Sphaerophthalma coaequalis. 



Ferruginea, longe fusco-hirta, abdomine fusco-niaculato ; femoribus tibiisque posterioribus fuscis ; alis hyalinis, 



nervis pallidis, stigmate fusco. <$ . 

 Long. 13 millim. 



Hab. Mexico, Northern Sonora (Morrison). 



The head is distinctly narrower than the thorax, narrowed and rounded behind, not 

 much developed behind the eyes ; punctured, but not roughly, and with the punctures 

 distinctly separated, shining, covered with long soft white hair ; the ocelli in a black 

 spot and with a semicircular furrow in front ; the tips of the mandibles black. The 

 antennae are not much longer than the head and thorax united, very little attenuated 

 towards the apex ; rufous, covered with a white down and long white hair, the scape 

 paler ; the third and fourth joints subequal. The pro- and mesonotum not very 

 shining, rather strongly punctured, covered with long pale soft hair ; the propleurse 

 strongly punctured, almost reticulated ; the mesopleurse much less strongly punctured 

 and with the punctures widely separated. The median segment has a gradually rounded 

 slope, and is covered with long pale fuscous hair ; the back reticulated ; the sides 

 rather strongly punctured, except at the base, where there is a smooth shining space. 

 The petiole is a little shorter than the second abdominal segment; it is gradually 

 widened towards the apex and without a distinct neck at the base ; very coarsely punc- 

 tured and covered with long pale fuscous hair. The other segments are scarcely 

 punctured, sparsely covered with fuscous hair, and black at their apices. The petiole 

 beneath is punctured somewhat strongly, keeled down the edges, and covered with long 

 pale hair ; the other segments are impunctate beneath, at most only obscurely shagreened, 

 very sparsely haired, and blackish at the apices ; the apical segment is keeled at the tip, 

 and also, but more obscurely, along the sides. The legs are covered with long white 

 hair ; the anterior pair are paler than the others, and have no black on them ; about three- 

 fourths of the middle femora and the greater part of the hinder femora are blackish ; 

 the four hinder tibiae are dark fuscous ; the calcaria are blackish. The wings are 

 clear hyaline and reach near to the apex of the abdomen ; the costa and nervures are 

 pale testaceous, almost pale yellow ; the stigma is fuscous ; the base and apex of the 



3 cc2 



