360 CLASS VIII. 
Masaris FAasr. 
Masaris Larr. Antenne (of males) longer than head. Abdomen 
elongate. 
Celonites Larr. Antenne in both sexes very short, terminated 
by a globose club. Abdomen scarcely longer than thorax. 
Sp. Celonites apiformis, PanzER, Deutschl. Ins. Heft 76, Tab. 19 ; DuM#RIL, 
Cons. gen. s. 1. Ins. Pl. 31, fig. 9; Cuv. R. ani. éd. ill., Ins. Pl. 123, fig. 9; 
in southern Europe. 
Phalanx II. Antenne with all the joints distinct, 13 in males, 
12 in females, with second joint geniculate, thicker from third 
joint towards apex, acuminate at apex. 
a) Solitary’. Mandibiles elongated-triangular, connivent, like 
a rostellum. Ligula narrow, elongate. Clypeus sub-cordiform or 
oval, with anterior margin produced and truncated. 
+ Cubital cells only two. 
Ceramius Latr., Ktuc. Labial palps longer than maxillary. 
Sp. Ceramius Fonscolombit Larr., GUERIN, Iconogr. Ins. Pl. 72, fig. 2. 
++ Cubital cells three. 
Synagris Larr., Fasr. Ligula produced into four very long 
sub-plumose sete. Maxillary palps short, with four joints. Man- 
dibles of males very large, porrect. 
Sp. Synagris calida, Vespa calida L., GuéRIN, Iconogr. Ins. Pl. 72, fig. 3 ;— 
Synagr. cornuta, Vespa cornuta L., Encycl. méth., Ins. Pl. 382, fig. 10. 
Comp. on this genus LEPELETIER in Encycl. méth. Ins. Tom. X. pp. 509, 510. 
Eumenes Latr., Fase. Ligula tripartite, with middle part 
deeply incised, bifid. Four glandular points at the apices of ligula. 
Maxillary palps with six joints. 
a) With abdomen oval or conical, thicker at the base. 
Sub-genera: Pterochilus Kuve (with labial palps plumose), Ody- 
nerus Larr. (Rhynchiwm SPINOoLA). 
Sp. Odynerus auctus, Vespa aucta Fasr., PANzER, Deutschl. Ins., Heft 81, 
Tab. 17; Odyn. spinipis, (fem. Od. murarius), PANzER, Deutschl. Ins. 
Heft 17, Tab. 18. (Here belong, according to AUDOUIN, the observations 
of Réaumur, Jns. VI. pp. 251—268. Pl. xxvi. figs. 1—10.) 
1 H. F. pe Saussure, Monographie des Guépes solitaires, av. 21 pl. color. Paris et 
Geneve, 1852, 8vo. 
