GORYTES MYSTACEU8. 103 



Vespa campestris, Linn. Faun. Suec. 417. 1677; Syst. Nat. 950. 

 13, Sf Cab. Mm. Linn. Soc. ? . 



Fabr. Syst. Ent. 369. 31. 



Rossi, Faun. Etrus. ii. 88. 873. 



Christ. Hym. 234. 



Oliv. Encycl. Meth. vi. 689. 96. 

 Mellinus mystaceus, Fabr. Ent. Syst. ii. 285. 1 $ . 



Panz. Faun. Germ. 53. 11. 

 Mellinus campestris, Fabr. Ent. Syst. ii. 287. 6. 

 Arpactus campestris, Panz. Krit. Revis. ii. 165. 

 Arpactus mystaceus, Jurine, Hym. 1 94. 



Sphex longicornis, Illig. Ed. Faun. Etrus. ii. 104. 827. t. 6. f. 9. 

 Gorytes mystaceus, Latr. Gen. Crust, et Ins. iv. 89. 



Van d. Lind. Obs. ii. 94. 9. 



Shuck. Foss. Hym. 211. 1. 



Dahlb. Hym. Europ. i. 166. 98. 



St. Farg. Ann. Soc. Ent. Fr. i. 57. 1 ; Hym. iii. 55. 1. 1. 28. f. 8. 



Wesm. Hym. Foss. Belg. 85. 1. 



Female. Length 5-6 lines. Black, shining and punctured ; 

 antennae nearly as long as the head and thorax; an oblique 

 yellow line on each side at the base of the clypeus, frequently 

 united; tips of the mandibles ferruginous. Thorax closely 

 punctured ; the metathorax with a triangular space at its base 

 longitudinally striated, beyond which it is coarsely rugose, with 

 a deep central incisure, the apex truncated ; the collar, tubercles, 

 and post-scutellum yellow ; wings slightly coloured, a fuscous 

 cloud occupies the marginal cell and passes round the apex of 

 the anterior wings, the nervures and stigma pale rufo-testa- 

 ceous; the tibiae and tarsi ferruginous and entirely simple. 

 Abdomen shining and delicately punctured, the first segment 

 more strongly so ; an ovate transverse yellow spot on each side 

 of the basal segment, near its margin ; a band of the same 

 colour occupying the margin of the second and third segments, 

 waved in front, the first dilated at the sides ; the fourth seg- 

 ment has sometimes a transverse line in the middle of the 

 margin ; the second ventral segment abruptly produced at its 

 base, and with strong scattered punctures. 



The Male frequently smaller than the female, and having a silvery 

 pubescence on the face below the antennae ; the antennae longer 

 than the head and thorax, the joints subarcuate ; the yellow 

 markings on the thorax frequently more or less obsolete, that 

 on the post-scutellum usually so, but the collar has generally 

 more or less yellow ; the anterior and intermediate tibiae yellow, 

 with a black streak behind, the first joint of their tarsi yellow ; 

 the posterior tibiae with a yellow line in front, not extending to 

 their apex ; their tarsi, and the remaining joints of the others. 



