MONOGRAPHIA CHALCIDITUM. 243 
ocres; nervus humeralis ulnari fere duplo longior, radialis ulnari 
vix brevior, cubitalis subarcuatus radiali multo brevior; stigma 
minutum. 
Sp. 48. Pter. Emathion. Mas. Viridis aut viridi-wneus, 
abdomen purpureum luteo fasciatum, antenna nigre, pedes 
fulvi aut lutei, femora viridia aut fusca, ale subfulve. 
Viridis: oculi et ocelli rufi: antenne nigre; articulus 1“. fulvus, 
apice piceus: abdomen purpureum, basi cupreum, ante medium 
luteo fasciatum : pedes fulvi; coxze virides; femora viridia, apice 
fulva ; tarsi apice fusci: ale subfulvee ; squamule pices ; nervi 
proalis fulvi, metalis flavi. (Corp. long. lin. 1—1;; alar. lin. 
13—12.) 
Var. 3.—Thorax eneo-viridis: abdomen basi zeneo-viride: pedes 
lutei; tarsi apice obscuriores ; femora fusca, apice et basi lutea: 
ale sublimpide. 
Var. y.—Thorax viridi-zeneus. 
May, June; near London. 
Mas.—Corpus angustum, sublineare, nitens, scitissime squameum, 
parce hirtum: caput transversum, breve, convexum, thorace paullo 
latius: antennze extrorsum crassiores, corpore paullo breviores ; 
articulus 1"*, sublinearis ; 2". cyathiformis ; 3". et 4"°, minimi; 
5", et sequentes filiformes, usque ad 10". curtantes vix lates- 
centes; clava sublinearis, apice acuminata, articulo 10°. plus 
duplo longior: thorax longiovatus, convexus : prothorax trans- 
versus, brevis: mesothoracis scutum longitudine paullo latius ; 
parapsides extantes, suturee vix conspicue ; scutelluin ovatum : 
metathorax transversus, mediocris: petiolus brevissimus: abdo- 
men depressum, lave, basi ad apicem latescens, thorace paullo 
angustius vix longius: pedes simplices, subeequales: ale ample ; 
nervus humeralis ulnari multo longior, radialis ulnari vix brevior, 
cubitalis radiali multo brevior ; stigma parvum. 
Sp. 49. Pter. Styrus. Mas. Véridis cupreo-varius, abdomen 
purpureum luteo maculatum, antenne nigra, pedes flaco-fulri, 
Jemora viridi-varia, ale subfusce. 
Viridis : oculi et ocelli rufi: antennse nigrae; articuli 1". et 2". 
virides, ille basi fulvus: thoracis discus cupreo-varius : abdomen 
purpureum, ante medium luteo maculatum, basi et apice viride : 
pedes fulvi; coxe cyaneo-virides; femora basi viridia; genua 
