MONOGRAPHIA CHALCIDITUM. 
sequentes breves, usque ad 10"". latescentes vix"curtantes; clava 
fusiformis, articulo 10°. plus duplo longior’: thorax ovatus, con- 
= vexus: prothorax transversus, brevissimus: mesothoracis scutum 
longitudine latius ; parapsidum suture vix conspicue ; scutellum 
breviovatum, magnum: metathorax transversus, brevis: petiolus 
brevissimus: abdomen sublineare, depressum, lave, thorace bre- 
vius et paullo angustius: pedes simplices, subsequales: ale 
mediocres ; nervus humeralis ulnari plus duplo longior, radialis 
x: ulnari fere longior, cubitalis ulnari paullo brevior; stigma minutum, 
Sp. 42. Pter. Ergias. Mas. Véridis cyaneo et @neo varius, 
antenne fuloe, pedes lutei aut flari, alee limpide. 
Viridis : oculli et ocelli rufi: antennz fulve ; articulus 1%. luteus ; 
2", et 5". basi, 11". 12°. et 13". pallide fusci; thoracis discus 
eeneo-viridis: abdomen viridi-aeneum, basi cyaneo-viride: pedes 
lutei; coxz virides; tarsi flavi, apice fulvi; protarsi lutei: ale 
limpide ; squamule lutez, fusco notate ; nervi proalis lutei, 
metalis flavi. (Corp. long. lin. 3—; alar. lin. 1—1}.) 
; Var. .—Cyaneo-viridis : thoracis discus viridis: abdominis diseus 
gneo-viridis : pedes flavi: proalis nervi flavi. 
Var. y.—Antenne articulo 1°. ad 5". omnino lutea. 
¥. i; 
Var. 5.—Antenne fulvee ; apices obscuriores ; articulus 1". luteus : 
thorax omnino viridis : abdomen zeneo-viride ; discus purpureus. 
September ; near London, Isle of Wight. 
Mas.—Corpus sublineare, nitens, scitissime squameum, parce hir- 
tum: caput transversum, breve, convexum, thorace vix latius: 
antenna filiformes, corpore paullo breviores ; articulus 1™. line- 
aris, gracilis; 2". cyathiformis; 3". et 4™. minimi; 5™. et 
sequentes filiformes, usque ad 10", curtantes ; clava fusiformis, 
articulo 10°. plus duplo longior: thorax ovatus, convexus: pro- 
thorax transversus, brevissimus: mesothoracis scutum longitu- 
dine paullo latius; parapsidum suture vix conspicue ; scutellum 
breviovatum : metathorax transversus, mediocris: petiolus bre- 
vissimus: abdomen sublineare, depressum, leve, thorace paullo 
angustius vix longius: pedes simplices, subaequales : alae medio- 
eres; nervus humeralis ulnari duplo longior, radialis ulnari non 
brevior, cubitalis radiali multo brevior ; stigma parvum. ; 
Sp. 43. Pter. Ornytus. Mas. Viridis cyaneo et aeneo-varis, 
abdomen purpureum nonnunquam luteo maculatum, antenn@ } 
Fusco, pedes luter, ale limpide. 
