244: MONOGRAPHIA CHALCIDITUM. 
flava; meso- et metatarsi flavi, apice fulvi; metafemora viridi- 
picea: ale subfuscee ; squamule fulvae, fusco notatz; nervi pro- 
alis fusci, metalis flavi. (Corp. long. lin. 14—14; alar. lin, 
2i—2}.) 
Var. $.—Capitis vertex cupreo-viridis: thorax viridis: pro- et 
mesotibize luteze : proalis nervi fulvi. 
Found near London. 
Mas.—Corpus sublineare, sat latum, nitens, scitissime squameum, 
parce hirtum: caput transversum, breve, convexum, thorace vix 
latius : antennze filiformes, graciles, corpore breviores ; articulus 
1". linearis, gracilis; 2"*. cyathiformis; 3". et 4", minimi; 5”. et 
sequentes filiformes, usque ad 10". curtantes; clava fusiformis, 
acuminata, articulo 10°. duplo longior: thorax ovatus, convexus: 
prothorax transversus, brevissimus: mesothoracis scutum longi- 
tudine vix latius ; parapsidum suture vix conspicuz ; scutellum 
ovatum: metathorax transversus, mediocris: petiolus brevissi- 
mus: abdomen sublineare, depressum, leve, thorace brevius et 
angustius: pedes simplices, subaquales: ale ample; nervus 
humeralis ulnari duplo longior, radialis ulnari non brevior cubitali 
duplo longior; stigma mediocre. 
Sp. 50. Pter. Ariovistus. Mas. Viridi-eneus, abdomen pur- 
pureum, antenne nigre, pedes fulvo-Susci, femora viridi-picea, 
ale sublimpide. 
Viridi-zeneus: capnt viride: oculi et ocelli rufi: antennze nigra ; 
articuli 1"*. et 2". virides, ille basi fulvus: abdomen basi viridi 
cupreo varium ; discus purpureus: sexualia fusca: pedes fusci ; 
coxz virides ; femora viridi-picea; genua flava; tarsi fulvi, basi 
flavi; propedes tibiis subtus fulvis, tarsis fuscis : alee sublimpide ; 
squamulz fulvee, antice piceze; nervi proalis fusci, metalis fulvi. 
(Corp. long. lin. 14; alar. lin. 24.) 
Found near London. 
Mas.—Corpus crassum, sublineare, nitens, scitissime squameum, 
parce hirtum: caput transversum, breve, convexum, thorace vix 
latius : antennze extrorsum crassiores, corpore breviores ; articulus 
1". gracilis, linearis ; 2"*, longicyathiformis; 3". et 4"*. minimi; 
5™. et sequentes filiformes, arcte applicati, usque ad 10". cur- 
tantes vix latescentes; clava sublinearis, apice conica, articulo 
10°. plus duplo longior: thorax ovatus, convexus: prothorax 
transversus, brevissimus : mesothoracis scutum longitudine paullo 
