can 
134 Prof. Westwood’s Observations on the 
mesonoto angusto bipartito, metanoto fere globoso; abdo- 
mine gibboso segmentis 2 et sequentibus in medio nubila 
nigra notatis ; aculeo longo gracillimo porrecto e lobis 
duobus parvis angustis exeunte ; pedibus elongatis sub- 
inermibus. Long. corp. 4 lin. 
Hab. California. In Mus. Hopeiano Oxonize (olim 
W. W. Saunders). 
Methoca hemorrhoidalis, n.s. (Plate VIL, fig. 2.) 
Speciebus reliquis hujus generis major. 
?. Nigra, capite et thorace velutinis, striolis mini- 
mis approximatis punctisque interjectis notata, abdo- 
mine dimidio basali nigro nitido, segmentis 4to et 5to 
basi griseo sericantibus, reliquis castaneis, aculeo longo 
exserto castaneo e lobis duobus planis minutis castaneis 
exeunte; capite lato oculis magnis ad angulos anticos 
positis; ocellis minutis inter oculos locatis; pronoto 
antice rotundato mesonoto bipartito; metanoto obovato 
convexa; antennis longis convolutis, nigris, pedibus 
longis, gracilibus, tarsis preesertim elongatis. Long. 
corp. 8 lin. (abdom. 4 lin.) 
Hab. Caffraria (D. Weale). In Mus. Hopeiano Oxonie. 
Obs. The descriptions of the other species of this 
interesting genus are so scattered in many works often 
very inaccessible, that I have thought it advisable to 
reproduce them in the following pages :— 
Methoca Canadensis. 
Smith, Brit. Mus. Cat. Hym. iii., p. 67. 
g. Black and shining, slightly villose, the face 
closely punctured, the vertex sparingly so; the anterior 
margin of the clypeus produced into an elevated 
tubercle ; the tips of the mandibles ferruginous. Thorax 
coarsely punctured ; the metathorax coarsely rugose, 
having above a central channel which is transversely 
ridged; behind truncate, the truncation obliquely rugose- 
striate on each side, having a slight central channel; 
the legs have the apical joints of the tarsi obscurely 
rufo-piceous, the calcaria ferruginous; wings hyaline, 
faintly coloured. Abdomen: the basal half of the first 
segment rugose, the lateral margins elevated and acute 
beyond this; the entire abdomen is rather finely and 
