8 MANDIBULATA. HYMENOPTERA. 



wings slightly fulvescent, with the second costal aieolet and the apes 

 darker or slightly fuscescent. 



Taken in the fens in the vicinity of Cambridge and Whittlesea ; 

 at times in great abundance, in June : also found near Norwich. 



Sp. 6. annulata. Lutea, abdomine Jlavo, thorace disco peciore abdo7ninisque 

 segmentis duabus piceis tertioque macula subviolascente-fuscis, femoribus 

 vio/ascente-lvteis J alls hyalinis apicefuscis. (Long. corp. 10—11 lin.; Exp. 

 Alar. 20—23 lin.) 



Ci annulata. Leach.— Steph. Catal. 32i. A^.37S9. 



Luteous; abdomen dull yellow, with a dorsal row of rusty dots, its base, or 

 rather the first two segments and a spot on the third, with the disc of the 

 thorax and the breast, of a violaceous-brown ; femora of a violaceous- 

 hiteous; wings hyaline^ sometimes a little fulvescent, with the second costal 

 areolet darker, and the apex slightly fuscous- 

 Taken near Windsor, and in the marshes about Cambridge ; also 



in Devonshire, in June and July. — Probably a variety of C. Griffinii. 



f Sp. 7. maculata, Fusco-testacea aeneo-nitens, capite antennis, tibiis tarsisque 

 hdeis, abdomine Jlavo, segmentis tribus primis dorsalibus violascente-fuscis, 

 3-iio macidd vtriiiquejlava, 4-^o macula dorsali fusco-violacea. (Long. corp. 

 10— 12§ lin.; Exp. Alar. 21 — 24 lin.) 



Cra. maculata. Fourcroy.—^Cls maculata. Steph.- Gatal. 32'4. No. 3740. 



Tet^taceous-brown, with a brassy tint ; head, antennae, tibiae, and tarsi, dull 

 luteous; abdomen yellow, with the three basal segments on the back vio- 

 laceous- or brassy-brown, and a spot of the same on the 4th; the 3rd with 

 a yellow or luteous spot on each side ; wings hyaline, with the costa and 

 the second areolet darker, the nervures testaceous-brown. 

 Scarce : found at Darenth wood. 



fSp. 8. humeralis. Nigra, antennis pedibusque luteis, fronte thoracis angulis 

 anticis abdomineque flavis i hoc super ne segmentis 1, 2, et i Juscis, externe 

 tnaculajlava nototis, aliis medio macula Jusca, alis hyalinis anticefulvescentibus, 

 fusco variis. (Long. corp. 9^ lin.; Exp. Alar. 17i| lin.) 



Cra. humeralis. Fuiircroy.~Ci. hwmexalxs. Steph. Catal. 32i. iVo. 3741. 



Black ; head, scutellum and pleurre rusty-luteous ; antennae and legs luteous, 

 the four posterior femora black in front : the forehead, anterior angles of 

 the thorax and abdomen yellow ; the latter with the 1st, 2nd, and 4th seg- 

 ments fuscous, with a yellow spot externally, the remainder with a fuscous 

 spot on the back ; wings hyaline, with the costa fulvescent, and the apex 

 clouded with fuscous. 

 Very rare : found near Salisbury. 



Genus II.— TRICHIOSOMA, Leach. 



.4H/f'!n(F slender, davate-capitiitc, 8-jointcd. basal joint robust and rounded. 



