XYLOTA. 255 



and parallel in repose ; micklle transverse vein very slightly oblique ; 

 subapical areolet entire ; axillary lobe distinct ; subcostal and radial veins 

 endhifj separately in the margin ; transverse prcebrachial vein placed 

 beyond the middle of the discal areolet. Alulpe small. Haltcres uncovered. 

 Abdomen sublinear ; first segment short ; fifth generally hidden. An- 

 terior legs short, slender ; hind legs stout, much larger ; hind femora 

 clavate, subspinose ; hind tibiiie curved, sinuated on the inner side. 

 Male. Eyes contiguous; facets of the front larger than those else- 

 where. Abdomen linear, obtuse at the tip. Fem. Eyes parted. 

 Abdomen fusiform, conical at the tip. 



Tlie larvfc of some species live in decayed wood. 



1. sylvarum, L. s. n. ii. 985. 37 (1767); Fb. ; Pz. ! fn. xlv. 

 21; LI.; Fin.; Mg. ; Mq. ; 'lii.—irnpiyra,Vz.\ fn. xlv. 21. Chaly- 

 bea, fulvo-hirta, capite albo-pubescente, antennis nigris, alls subcinereis, 

 abdominis apice aureo-hirto, tibiis basi Havis, tarsis fulvis. Long. 6 ; 

 alar. 12 lin. 



Chalybeous, clothed with short tawny hairs. Head black, as broad 

 as the thorax, covered in front and beneath with white shining down, 

 clothed beneath with white hairs. Mouth and antennae black. Thorax 

 with an aeneous tinge, partly divided by an indistinct transverse suture, 

 which is before the base of each wing ; scutellum with a slight suture 

 along its hind border. Wings pale grey ; stigma brown. Alula) white. 

 Halteres yellow. Abdomen clothed toivards the tip with gilded hairs. 

 Tibife yellow tov/ards the base ; tarsi tawny, with black tips. 



Generally distributed. (E. S. I.) 



2. lenta, Mg. zw. iii. 222. 15 (1822); Mq. ; 'Lii.—piyra, Shr. ; 

 Fin. ; Pz. ! fn. Ixv. Nigra, alis subcinereis, venis fusco-subnebulosis, ab- 

 dominis segmentis secundo et tertio rnfs. Long. 6 ; alar. 12 lin. 



Black. Face and epistoma covered with shining white down. Third 

 joint of the antennae piceous, covered with tawny bloom. Wings pale 

 grey, slightly tinged with brown along the borders of the veins. Hal- 

 teres yellow. Second and third abdohiinal segments red. Hind legs 

 very long. 



3. segnis, L. s. n. ii. 988.57 (1767); Dg. ; Fb. ; Shr.; Pz. ! fn. 

 Ix. 3; LI.; Flu.; Mg. ; Mq. ; Ztt. Chalybea, antennis nigris apice 

 piceis, alis subcinereis ad costam subfuscis, abdominis segmentis sec/a/do 

 et tertio fulvis, tibiis tarsisque anterioribus fulvis, illis nigro-cinctis, 

 tibiis posticis basi fulvis. Long. 3|-5i; alar. 7-11 lin. 



Chalybeous, covered in front and beneath with shining white down, 

 clothed beneath with white hairs. ]\louth piceous. Antenna) black ; 

 first and second joints beset witii black hairs and bristles ; third joint 

 piceous. Scutellum with a transverse furrow near its hind border. 

 Wings pale grey, slightly tinged with brown between the costa antl the 

 disc; stigma brown. Alula) white, with yellow borders. Halteres 

 tawny. Second and third abdominal segments tawny. Anterior tibiji) and 



