312 Mr. Walker on the British Chaleiditcs. 



sublinearis ; 2 U * longicyathiformis j o" s longus, sul)lincaris ; 4 UI brevior; 

 clava longiovata, acuminata, articulo 5° fere duj)lo longior: tborax ovatus, 

 convexus: protborax transversus, brevissimus, supra conspicuus : mesotho- 

 racis scutum longitudine latius, parapsidum sutura' remotae, conspicuae ; 

 Bcutellum magnum, obconicun ; paraptera et epimera distincta : metatho- 

 rax transversus, bene detmninatus : petiolui crassus, brevissimus : abdomen 

 ovattim, planum, tboraci fere quoad longum ac latum ; segmentum l um mag- 

 num ; 2" 1U ct sequentia breviora, transversa, subacqualia : pedes graciles ; 

 tarsia articulua l" brevis, 2 ui et ^longiores, 4 U » adliuc longior: alae latae; 

 nervus ulnaris lmmerali vix brevior, cubitalis longus, radialis brevissimus. 



Sp. 5. Cirr. Diallus, Fern. Cyuneoviridis, abdomen nigrocupreum, anten- 



inc fulvce, pedes flavi, alee limpidce. 



Cyaneoviridis : caput supra apud oculos flavum : oculi et ocelli run: an- 

 tennae fulvce; articuli l us et 2 US fusci, hie apice fulvus : gula pallide flava : 

 abdomen nigrocupreum : pedes laete flavi ; coxae virides ; ungues et pulvilli 

 fulvi : proalae cuique disco maculaobsoleta flava : squamulae flava? ; nervi 

 flavi. (Corp. long. lin. 4; alar. lin. l£.) 



Found near London. 



Fern. Corpus angustum, sublineare, sat longum, parum convexum, nitens, 

 scitissime squameum, parce hirtum : caput transversum, parvum, brevissi- 

 mum, thorace fere angustius ; vertex latus ; frons impressa, abrupte decli- 

 vis : oculi sat magni, subrotundi, extantes : ocelli vertice triangulum fingen- 

 tes, media perparum anteposita: antennae subclavatae, pubescentes, prope os 

 insertae, corporis dimidio vix breviores; articulus l us longus, gracilis, subfu- 

 siformis; 2 US longicyathiformis ; 3 U * et 4 US brevissimi ; 5 US longus, subline- 

 aris ; 6 US paullo latior et brevior ; clava triarticulata, fusiformis, acuminata, 

 6° paullo latior et fere duplo longior: thorax ovatus, convexus: protborax 

 transversus, sat bene determinatus, antice abrupte acuminatus, postice latus 

 incurvus : mesotboracis scutum longitudine paullo latius ; parapsidum su- 

 turae remotae, bene determinatae; paraptera et epimera magna; scutellum 

 subovatum ; postscutellum transversum : metathorax brevis ; petiolus cras- 

 sus, brevissimus : abdomen longiovatum, supra depressum, subtus carina- 

 tum, apice attenuatum et acuminatum, thorace paullo longius et angustius ; 

 segmentum l um magnum, baei laeve ; 2 um et sequentia ad 7 ,,m breviora, trans- 

 versa parallela, subaequalia : oviductus abdominis basin versus apparens, sub- 

 exertus ; vaginae pubescentes : pedes graciles, pubescentes, simplices, sub- 

 aequales; coxae parvae ; femora subclavata ; tibiae rectae ; tarsis articulus 1" 

 brevis, 2 US et 3 US longiores, 4 US adhuc longior ; pulvilli magni ; alas ampla?, 

 pubescentes, non ciliatae : proalis nervus hirtus costae dimidio paullo longior, 

 ulnaris humerali vix brevior, cubitalis longus, radialis brevissimus, stigma 

 minutum ; metalis nervus simplex costae dimidio longior. 



Mas. Caput juxta tboraci latum : antennae extrorsum crassioves, corporis 

 dimidio longiores ; clava articulo 6° duplo longior : abdomen conicum, tho- 

 race brevius et angustius. 



[To be continued.] 



