114. cephus. 357 



12. Cephus alboinaciilatus. 



Cephus albomaculatus, Tischbein, Stett. ent. Zeit. xxxvii. p. 59 

 (1876). 

 Hah. Ragusa. 



13. Cephus niger. 



Syrex niger, Ihirr. Exp. Ins. p. 94, pi. xxviii. fig. 2 (1776). 



Sirex troglodyta, Fabr. Mant. Ins. i. p. 258, n. 17 1 1787). 



Astatus troglodytus, Panz. Faun. Germ. Heft 83, pi. xii. (1801 i ; 



Khiff, Mon. Sir. Germ. p. 49, pi. vi. figs. 1. 2 a, b (1803). 

 Cephus troglodytus, Hart. Blattw. p. 360 (1837). 

 Cephus troglodyta, Costa, Faun. Nap., Cef. p. 3 i 1860) ; Thorns. Hym. 

 Scand. i. p. 321 (1871). 

 Hah. Europe. 

 a-g. c? 2- Britain. J. F. Stephens. 



h, i. <3 2 • Britain. 



k-o. S2- Germany. J. F. Ruthe. 



p-r. 2- Zurich. H. Buchecker. 



1 4. Cephus linearis. 



(Plate A IV. fig. 7.) 



Tenthredo linearis, Schrank, Enum. Ins. Austr. p. 343 < 1781). 

 Ceplms quinquefasciatus, Steph. 111. Jin't. Eat.. Maud. vii. p. 104 



(1835). 

 < ephus faunus, Thorns. \ m N vom. i Hym. Si and. i. p. 319 1 187 1 I. 

 Phyllcecus faunus, Andre, Spec. Hym. i. p. 543 | 1881 ). 



Exp. al. 10-11 Hn., long. corp. 5-6 lin. 



Black, face and abdomen shading into chestnut : two yellow dots just 

 within the eves on the vertex, and two more jusl below the antennae : 

 between these last are two small oblique stripes on the elypeus. 

 Collar bordered behind with yellow : a yellow triangular spot at the 

 base of the abdomen, and one on each side of the metathorax : a 

 small yellow dash on the hind coxa?. Abdomen compressed ; segments 

 3, I, 6, 7. B, and '.! edged with yellow belts behind ; segment 2 with 

 only a yellow dot on each side. Legs testaceous; femora blackish. 

 Wings hyaline, with yellowish nervures. Male with the face below 

 the antenna' reddish yellow ; a spot in the middle of the elypeus, 

 another on the hibrnm. and a streak below each antenna, traversing 

 the whole face, black ; abdomen cylindrical, and with a yellow dot 

 on each side of segment ">. instead of segment 2: otherwise as in the 

 female. 



JIab. Europe. 



a, b. <$2- (Types of C. quinque- Bristol (?). J.F.Stephens. 



fasciatus. I 



L5. Cephus pygmaeus. 



(Plate XIV. fig. 5, C. atripes', fig. 6, C. pusillus.) 



Sirex pygmaeus, Linn. Syst. Nat. i. p. 929, n. 7 (1767). 

 Astatus pygmaeus, King, Mon. Sir. Germ. p. 50, pi. \i. fig. •'! (1803). 

 ephi - pygmaeus, Hurt. Blattw. p. 361 (1837); Costa, Faun. Nap., 

 Cef. p. 4 (1859); Thorns. Hym. Scand. i. p. 322 (1871 ), 



