1880.] PROF. WESTWOOD ON THE GENUS PERGA. 3/3 



fusco fasciatis ; capite fulvo, Icevi, fronte antice in medio supra 

 basin ant ennar tun p) arum porrecta, vertice pone ocellos triimpresso, 

 mandibulis apice castaneis ; (antennis fractis ;) ?nesonoto antice 

 canali medio instructo, lateribus dorsi elevatis nigris, utrinque 

 linea impressa obliqua a dorsi medio separatis ; sciitello trans- 

 verso quadrato, postice parum angustato, in medio suhimpresso, 

 utrinque postice tuberculo fulvo instructo ; abdomine chalybeio 

 nitidissimo, sec/mentis basalibus utrinque, posticis omnino alLido 

 fasciatis ; corpore infra fulvo ; abdomine cyaneo, segmentis anguste 

 albido marginatis ; pedibus piceis ; alis magnis, flavidis, costa 

 stigmateque castaneis, hoc basi nigro, fascia media transversa 

 fusca ; cellula marginali fere ad apicem alee extensa, cellula prima 

 submarginali brevi transversa, secunda et tertiafere ceque loiigis, 

 Iiac latiore, apice recte truncafo ; cellula marginali in alis posticis 

 interdum vena transversa recta jjrope apicem in duas partes 

 divisa. (Fcemina.) 



Long. Corp. lin. 6|. Expans. alar, antic, tin. 14. 



Hab. in Australasia. In Mas. Hopeiano Oxonise. 



26. Perga BELLA, Newman, 'Entomologist,' p. 89. 



" Testacea : caput testaceum, oculis nigris ; ocelli nigri in macula 

 concolori siti ; antennarum articuli 1. et 2. aterrimi, apicibus tenui- 

 ter albis, 3. fuscus, cseteri lutei ; antennae tubere albo sitae ; oculorum 

 margo anticus albus, genes quoque albse ; epicranium asperum, macu- 

 lis 2 albis siguatum ; clypeus testaceus, lateribus albis : prothoracis 

 scutellum margine postice albo : mesothoracis scutum asperum, punc- 

 tum, linea mediana marginibusque lateralibus elevatis albis, lineis 

 quoque nonnuUis nigris ; mesothoracis scutellum dentibus 2 posticis 

 sublongis obtusis instructum ; mesopleura puncta, margine imo fal- 

 ciformi late albo : metapleura nigro varia, macula elevata mediana 

 subtrigona alba ; raesosternum aterrimum, glaberrimum : pedes 

 flavidi, coxis albis : abdomen testaceum, maculis 7 lateralibus elon- 

 gatis albis, subtus testaceo nigroque varium. 



" Corp. long. 7 unc, alar. lat. 1 "4 unc. 



" Inhabits New Holland. A single specimen of this beautiful 

 insect (now in cabinet of Entomol. Club) was taken by Mr. Davis at 

 Adelaide." — Newman. 



P.ferruginece, Leach, proxima, sed niulto major, alarum anticarum 

 medio paullo saturatiore. Variat colore saturatiore maculisque distin- 

 ctioribus, maculis 7 oblougis, albidis, lateralibus abdominis distin- 

 guenda, abdomine etiam segmentis ventralibus interdum testaceis, 

 interdum nigris nitidis segmento ultimo cum oviductu testaceo, 

 interdum omnino nigris oviductu piceo. 



Individua plurima fceminea in Mus. Hopeiano Oxoniae hospitantur, 

 variant longitudine unc. g ad unc. |, et expans. alar, antic, unc. 1^ 

 ad unc 1^. 



Individua hujus speciei ex Adelaida in museo Hopeiano cum 

 nomine falso P. ventralis, Westw., inscripto e Dom. Smith accepta, et 

 alia similiter nominata in Mus. Britanuico continentur. 



Alia individua, ex Adelaida, pallidiora (soil, roagis lutescentia) in 



25* 



