MONOGRAPHIA CHALCIDITUM. 259 
tudine paullo longius; parapsidum suturee vix conspicure ; scu- 
tellum ovatum: metathorax transversus, sat magnus: petiolus bre- 
vissimus : abdomen sublineare, depressum, lzeve, thorace angustius 
vix brevius: pedes simplices, subzequales: ale ample; nervus 
humeralis ulnari fere duplo longior, radialis ulnari paullo brevior, 
cubitalis subrectus radiali multo brevior; stigma parvum. 
Sp. 71. Pter. Dercyllus. Mas. Véridis cupreo-varius, abdo- 
men cupreum, antenne nigra, pedes fulvo-flavi, femora viridia, 
ale sublimpide. 
Viridis : caput ad os cupreo-varium: oculi et ocelli rufi: antenna 
nigree; articulus 1". et 2". virides: thoracis discus cupreus: 
abdomen cupreum, subtus et ad apicem viride; discus purpureo- 
cupreus: pedes flavi; coxze virides ; trochanteres fulvi ; femora 
viridia, apice flava; tarsi apice fusci; propedes tibiis extus tar- 
sisque fulvis: ale sublimpide ; squamula fulvze, antice virides ; 
nervi proalis fulvi, metalis flavi; stigma pallide fuscum, (Corp. 
long. lin. 14—14; alar. lin. 2; —2}.) 
Var. 3.— Thoracis discus eeneo-viridis: abdomen apice eupreum : 
tibize pallide fulvee; protibiae obscuriores. 
Found near London. 
Mas. — Corpus longum, angustum, sublineare, nitens, scitissime 
squameum, parce hirtum: caput transversum, breve, convexum, 
thorace vix latius: antennz graciles, filiformes, corpore vix brevi- 
ores; articulus 1", gracilis, sublinearis; 2"*. longicyathiformis ; 
3". et 45, minimi; 5". et sequentes longi, filiformes, usque ad 
10", curtantes ; clava sublinearis, acuminata, articulo 10°. fere 
duplo longior: thorax longiovatus, convexus: prothorax trans- 
versus, mediocris: mesothoracis scutum longitudine paullo latius ; 
parapsidum suture bene determinate ; scutellum conicum: meta- 
thorax transversus, sat magnus: petiolus brevissimus: abdomen 
sublineare, depressum, lzeve, thorace angustius vix brevius: pedes 
simplices, subzequales: alee ample; nervus humeralis ulnari duplo 
longior, radialis ulnari non brevior, cubitalis rectus radiali multo 
brevior ; stigma mediocre. 
Sp. 72. Pter. Archidemus. Mas. Cyaneo-viridis, abdomen 
cupreum aut purpureum, antenne nigra, pedes fulvi, femora 
viridi-vittata, alee limpide. 
Cyaneo-viridis ; oculi et ocelli rufi: antenne nigra; articuli 1". et 
2", virides: thoracis suturee cupreo-varie: abdomen cupreum, 
