750 M. W. R. de V. GRAHAM 



7 (4) Head in dorsal view (Text-fig. 644) strongly transverse, 2-35-2-4 times as 



broad as long. Genae so strongly buccate as to appear almost angulate in 

 frontal view. Antenna with pedicellus in dorsal view about 2-5 times as 

 long as broad ; scape slightly longer than an eye and reaching above the 

 vertex ; combined length of pedicellus and flagellum slightly greater than 

 the breadth of the head ; flagellum slightly clavate littoralis sp. n. (p. 755) 



- Head in dorsal view at most 2-2 times as broad as long. Genae less strongly 



buccate. Antenna with pedicellus in dorsal view rarely more than twice 

 as long as broad, if so then scape shorter than an eye. In most species 

 the combined length of the pedicellus and flagellum is not greater than the 

 breadth of the head, and the flagellum is not clavate .... 8 



8 (7) Eyes very large, separated by only 0-9 their length ; malar space very short, 



hardly more than one third the length of an eye ; head in dorsal view with 

 temples hardly one sixth as long as the eyes. Pronotal collar sharply 

 margined except just at the sides ..... sp. indet. D (p. 769) 

 Eyes smaller, separated by at least slightly more than their length ; malar 

 space usually longer ; head in dorsal view with temples at least one fifth 

 as long as the eyes. Pronotal collar often indistinctly margined . . 9 



9 (8) Species associated with seaweed (Fucus). Lower edge of antennal toruli 



hardly above the level of the ventral edge of the eyes. Head and thorax 

 bronze- or bluish black ; legs reddish with the femora often, the tibiae 

 sometimes, more or less infuscate. Marginal vein 1-7-2-1 times as long as 

 the stigmal vein ....... fucicola (Walker) (p. 753) 



Species not associated with seaweed. Lower edge of antennal toruli slightly 

 to very distinctly above the level of the ventral edge of the eyes ; if only 

 slightly above, then head and thorax greenish and legs, not counting 

 coxae, testaceous or yellowish. Marginal vein usually less than 1-7 times 

 as long as the stigmal vein ......... 10 



10 (9) Propodeal callus densely clothed with white hairs which hide most of the 



surface. Head and thorax bronze-black ; femora mainly, tibiae slightly, 

 infuscate ; antennae black with the scape partly testaceous. Pronotal 

 collar fairly sharply margined .... albopilosus sp. n. (p. 753) 

 Propodeal callus less thickly pilose, the hairs not hiding the whole surface, 

 and usually not conspicuously white. Head and thorax most often some 

 tint of green ; legs, not counting coxae, usually testaceous or yellow, 

 occasionally the femora partly infuscate ; antennal scape often mainly to 

 wholly testaceous, sometimes the whole antenna of this colour. . . 11 



11 (10) Pronotal collar evenly and sharply margined throughout, or except just at 



the sides. Antenna with scape as long or virtually as long as an eye, 

 reaching above the vertex ; combined length of pedicellus and flagellum 

 1-15-1-2 times the breadth of the head. Propodeum with a distinct median 

 carina. Both mandibles with 4 teeth . . . . . . . 12 



Pronotal collar usually weakly and irregularly margined or immarginate ; 

 if at all sharply margined, then only over about the middle third, and 

 combined length of pedicellus and flagellum not or hardly greater than 

 breadth of head ........... 13 



12 (11) All funicular segments except sometimes the sixth are slightly longer than 



broad ; the first segment as long as the second. Larger species, i-6- 



i-8 mm. ........ caricicola sp. n. (p. 768) 



- First funicular segment slightly transverse and slightly shorter than the 



second. Small species, length about 1 mm. . . . sp. indet. B (p. 757) 



13 (11) Antennae with combined length of pedicellus and flagellum 1-25-1-35 times 



the breadth of the head ; funicular segments, except occasionally the 



