XXVIII. MELLINUS. 203 
at its extremity; the apical segment flat, with a longitudinal 
carina on each side, and obtuse at its extremity. 
Type, M. arvensis. Lin. 
+4+ This genus, of which the etymology is uncertain, 
was first established by Fabricius in his ‘ Entomologia Sys- 
tematica,’ in 1793; but with him it always comprised, in 
conjunction, the insects which Latreille subsequently se- 
parated by the name of Gorytes, but who also confounded 
species of that genus and Alyson with it, until Jurine’s 
system cleared up the confusion. The genus Gorytes was 
formed upon the true type of the present genus, viz. the 
Sphex mystacea, Lin., but as nothing could be gained by 
subverting what has taken place, and in which all writers 
have hitherto tacitly concurred, I leave it as it is. 
«Sp. 1. ARVENSIS. Lin. 
niger, abdomine fasciis quatuor (tertid interruptd), pedibusque 
flavis. 
length 33—7} lines. 
Fab. Ent. Syst. 2.287. 7; Piez.299.10; Latr. Hist. 13.319.3; Nouy. 
Dict. 2 ed. 20. 100; Dumeril, Dict. des Se. Nat. 30. 2. 2; V.d. Lind. 
pt. 2.84.1. 9. 
Vespa arvensis. Lin. Syst. Nat. 1.950.12; F.S.1678 ; Fab. Syst. Ent. 
368. 30; Sp. 1. 465.50; Mant. 1.291.49; Villers, 3. 269.9 ; Christ. 
234. 9. 
Vespa superbus. Harris, Expos. p. 227. 3. pl. 37. fig. 3. 9. 
Vespa tricincta, Vill. 3. 279. 33. g. 
Crabro U. flavum. Panz. F. G. 17. 20. 9. 
Crabro bipunctatus. Fab, Mantissa, 1. 296, 18; Olivier, Ency. Méth. 
6 516.20. 9. 
Mellinus bipunctatus. Fab. Ent. Syst. 2. 286.4; Piez. 298. 6; Latr. 
H. N. 13. 320.5; Nouv. Dict. 2 ed. 20. 100. 9. 
Head black, punctured, pubescent ; the face with the internal 
orbits of the eyes having a marginal yellow line, and a transverse 
