109. MACBOXIELA. 351 



Subfamily XIV. XYELIN^E. 



109. MACROXYELA. 



Allied tu Xyela, but much larger. 



Head transverse, moderately broad. Antennae 9-jointed, the 

 first joint much broader and twice as long as the second, the third 

 a- Long as all tin' remainder together; the following joints much 

 smaller and thinner, collectively aboul as long as the first two joints 

 ■her. Wings with three marginal cells and four submarginal 

 coll- : ..f the three nervures which divide the latter, the first is re- 

 ceived by the first marginal cell, and the other two by the third : 

 the two recurrent nervures arc received by the second and third 

 Bubmarginal cells respectively; lanceolate cell with oblique cross 

 line: hind wings with three inner cells. Abdomen broad, rather 

 flattened; ovipositor stout, distinctly double, projecting to a distance 

 equal to about two thirds of the lengtb of the abdomen ; fronl tibia 

 with two small terminal spurs ; intermediate tibiae with at least two 

 middle, and hind tibiae with at least three middle spurs, in addition 

 to the i wo terminal spurs*. 



T\ pe V" ' ' /• rru 9 



1. Macroxyela major. 



Xyi la ui /',,. r. Ent. s . . \ iii. p. 3 I (1880J. 



Huh. Texas. 



-. Macroxyela ferruginea. 

 I Plate XIV. fig. l.i 



Xyela ferruginea, Sat/, Low/'a S ■'. ii. p. 310 1 1824); AW. 



/ ans. Amer. Ent. Soc. ii. p. 348 ( [6(j\) 



I :p. al. v 1 i ii.. long. corp. '■'> lin., cum oviductu 5 lin. 



Chestnut-colour, lightesl on the abdomen: a black spot on the 

 • \. and on each side of the thorax at the base of thi front 

 wings; metathorax narrowly edged behind with black. Wings 

 hyaline, mere ur less clouded with yellow : nervures ferruginous. 



llab. North America. 



a,b. 



'■'. Macroxyela infuscata. 



Xyela infus ata, Ac './'-... Bost. Soc. viii. p. 224 (18G1 ) ; id. Trans. 

 'Amer. 1 Soc. ii. p. 349 i L869). 



Uab. United State-. 



* li is difficult to determine the number v{' spurs with certainty, as they arc 

 liable to '*' broken off. 



