38 CECESUS SEPTENTRIONALIS. 



1. CECESUS SEPTENTEIONALIS. 



Vol. I, PI. IV, fig. 5, Larva ; PI. XI V, fig. 6 ? ; a, 

 Ant. ; b, Saw ; b, c, e, Trophi ; /, Head ; g, Claw ; h, 

 Tarsus. Vol. II, PI. XXVII, fig. 5, Maxilla of Larva. 



Tenthredo septentrionalis, Linne, S. N., 557, 24 ; F. Sv., 926, 36 ; 



Miiller, Z. Dan., 1730; Schrank, 

 Enum., 672 ; Panz., F. G., 64, f. 

 11 ; Fabr., S. P., 42 ; De Geer, 

 Mem., ii, 262, pi. 37, f. 24, 28 (lar.) ; 

 Fallen, Acta, 1804, 60; Zetterstedt, 

 I. L., 349, 41. 

 largipes, Retz., De Geer f 73, 309. 



Nematus septentrionalis, Olivier, Enc. Method., 166, 4 ; Lep., 



Mon., 65, 184; F. Fr., 64, 6; de 

 Yillaret, Ann. Soc. Fr., i, 303; 

 Hartig, Blattw., 184, 2; Yollen- 

 hoven, Tijd. Ent., ii, 7478, pi. 5 

 (ec.) ; 1. c., 2nd series, v, 75 ; Yol- 

 lennoven, Zool. (s.s.), 8175 ; Thom- 

 son, Opusc., 614, 1 ; Hymen. 

 Scand., i, 84, 5 ; Ratzeburg, Forst- 

 Ins., iii, 118, pi. iii, f. 3 (ec.) ; 

 Brischke and Zaddach, Schv. Ges. 

 Konig., xvi, 54, 5, pi. i, f. 2 ; Evers- 

 mann, Bull. Mosc., xx, 14, 1 ; 

 Andre, Species, i, 100; Cat., 12*, 1. 



Nematus laticrux, Yillaret, 1. c., 307, pi. 11, f. 7; Hartig, 1. c., 



186, 5 ; Eversmann, 1. c., 14, 2. 



Croesus septentrionalis, Leach, Z. M., 129 ; Curtis, B. E., i, pi. 17 ; 



Stephens, 111., vii, 38 ; Doubleday, 

 Ent. Mag., i, 313, pi. 1, f. 5 ; Smith, 

 Ent. Ann., 1866, 135, 137; Inch- 

 bald, E. M. M., v, 21 ; Costa, F. 

 Nap, 12, pi. 63, 4; Kaltenbach, 

 Pfl., 606. 

 laticrux, Stephens, 1. c., 39. 



Black ; shining, punctured, and covered with short, although dense, 

 pubescence. Antennae as long as the body, bare, third joint a little 

 longer than the fourth, the remaining joints a very little shorter ; 

 each decreasing considerably in width towards the apex. Head punc- 

 tured, half shining ; the antennal tubercles large, fovese large, distinct ; 

 apex of clypeus notched; apex of mandibles piceous; the palpi are 

 white, darker at the base. Thorax black, slightly shining, densely 

 punctured ; pleurae opaque, impressed with rugose punctures, pubescent ; 

 the breast smooth and shining; tegulse black. Wings hyaline, a little 

 clouded from the commencement of the first cubital cellule, clearest 

 at the extreme apex ; the apex of posterior wings also clouded : in the 

 centre of the second cubital cellule is a black horny point. Legs black, 

 coxae, trochanters, and base of posterior femora, anterior tibiae and 



