LOXOCERA. 217 



Genus II. LOXOCERA. 



LOXOCERA, F. S. A. 202 (1805) ; Latr. ; Fal. ; Meig. ; Mcq. ; Desv. ; 

 Zett. Syrphus p., F. E. S. Mulio p., F. E. S. Suppl. Nemotelus 

 p., Schr. Musca p., Gmel. ; Pz. 



Corpus perangustum, fere cylindricum. Caput subquadratum. Fades 

 valde obliqua. Antenna capite longiores ; articulus tertius linearis, 

 secundo quadruplet longior. Thorax longi-subquadratus. Ala3 sat 

 angustae. Abdomen gracillimum, thorace multo longius. Pedes 

 graciles, sat longi. Mas. Abdomen Jineare, cylindricum. Fosm. 

 Abdomen lanceolatuin, compressum. 



Body very narrow, nearly cylindrical, slightly pubescent, without 

 bristles. Head subquadrate, slightly prominent. Front slightly con- 

 vex. Face very oblique. Epistoma and peristoma not prominent. 

 Antenna longer than the head; third joint linear, very slender, about 

 four times the length of the second ; sixth setiform, pubescent, stout, 

 as long as the third. Thorax elongate, subquadrate. Wings rather 

 narrow ; costal vein ending on the hind border at some little distance 

 from the tip of the wing ; subcostal ending at much before half the 

 length ; radial ending at about seven-eighths of the length ; cubital 

 and prabrachial slightly diverging between the transverse veins ; pras- 

 brachial slightly angular at its junction with the transverse veins, more 

 curved than the cubital, and slightly diverging from it towards the tip ; 

 discal transverse nearly upright, slightly curved outward, parted by 

 twice its length from the praBbrachial transverse, and by more than half 

 its length from the border. Abdomen very slender, very much longer 

 than the thorax. Legs slender, almost bare, rather long. Male. Ab- 

 domen linear, cylindrical. Fern. Abdomen lanceolate, compressed, 

 longer than in the male. 



1. ichneumonea, L. Fn. 1809 (1761) ; F. ; Gmel. ; Latr. ; Fal. ; 

 Meig. ; Mcq. ; Desv. ; Zett. albisetus, Schr. aristata, Pz. ! Fn. Ixxiii. 

 Nigra, antennis basi ferrugineis, arista testacea, thorace rufo nigro-bivit- 

 tato t alis sublimpidis, pedibus fulvis ; Mas, abdomine thorace duplo Ion- 

 giore ; Fcem. abdomine tJwrace triplo longiore. Long. 3^-5 ; alar. 5^-7 

 lin. 



Black, shining. Antennae black ; first and second joints ferruginous ; 

 arista testaceous. Thorax red, more or less black in front, and with two 

 black discal stripes. Wings with a slight lurid tinge, or nearly limpid. 

 Halter.es pale yellow. Legs tawny; hind tarsi and tips of anterior 

 tarsi brown. Male. Abdomen twice the length of the thorax. Fern. Ab- 

 domen thrice the length of the thorax. 



Common. (E. S.) 



2. sylvatica, Meig. Zw. v. 365. 3 (1826) ; Mcq. ; Zett. Nigra, 

 antennis basi ferrugineis, arista testacea, thorace rufo nigro-univittato, 



VOL. II. 2 F 



