92 Mr. J. O, Westwood's Descriptions 



North and South American, as well as European, are known. The 

 species are but of small size, none exceeding our large blue-bottle 

 fly in size. 



PsiLODERA. 



Psilodera affinis, Westw. 



Ps. lutea, thoracis plaga lata dorsali antice subito angustata aenea, 

 abdomine supra saturate fusco-testaceo, villoso, segmentis 

 tribus basalibus macula media nigra, ad basin baud dilatata. 



Long. corp. lin. 4|, expans. alar. lin. 11. 



Habitat apud Caput Bonse Spei. 



In Mus. nostr. 



Ps. validce affine. Caput nigrum. Antennae flavse, articuli 

 2di apice nigro. Thorax luteo-fulvus, pube erecta fulva 

 hirtus, plaga media dorsali antice subito angustiore aenea 

 supra scutellum, maculis duabus obscure testaceis ad margi- 

 nem posticum thoracis dorsi extensis, notatus. Abdomen 

 supra fusco-testaceum, pube pallidiori hirtum, segmentis tri- 

 bus basalibus macula nigra basali, 1 ma basi baud dilatata ; 

 infra obscure flavescens. Pedes omnino flavi. Alae hyalinae. 

 Proboscis nigra, seta dorsali et basali albida. 



Psilodera capensis, G. R. Gray, An. K. Ins. pi. 128, f. 4. 

 Ps. thorace et scutello omnino luteo-pubescentibus, capite nigro, 



proboscide nigra, supra fulva, pedibus pallidis 3 abdomine 



rufo-fusco, luteo-albido fasciata. 

 Long. Corp. lin. 4^^, expans. alar. lin. 8. 

 Habitat apud Caput Bonae Spei. 

 In Mus. Britann. 

 An Cyrlus fnsc'iatus, Wied. ? E Ps. valida certe distinctae. 



Lasia. 

 Lasia Jlavitarsis, Erichson. 



Syn. Panops Jlavitarsis, Wiedemann, Macquart. 



Lasia amethystina, Perty. 



Berts? violacea, G. R. Gray. In Griffith's An. K. Ins. pi. 114, 

 fig. 2. 



Ha3C species magnitudine valde variat. Individuum Pertianum 

 lineas 4f habet ; Wiedemanni 5 lineas, et proboscidem 6 lineas. 

 In Museo D. Hope individua 2 extant, lineas 5| — G^ longi- 

 tudine corporis, proboscidis 9^ lin., et expans. alar. 12 — 13| 

 lin. habentia. Antennae fuscae, arliculo ultimo basi pallido, 

 venae intermedia; longitudinales marginis postici alarum ad 

 marginem ipsum baud extensse. 



