. Fig. 91. Antenna of X. caliginosum c?. X 60. long, the third joint very elongated, band-shaped, about four times as long as the very short arista. Tliorax dark greenish, æneous or some- what coppery, shining; scutellum brighter green or sometimes bluish. Pleura greenish, grey pruinose; propleural hairs pale. Abdomen æneous or coppery, clothed with short, black hairs, a little longer and pale at the sides in front; there are hindmarginal bristles, longer on the first segment; the eighth segment with short hairs. Venter

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Keywords: ., bookcentury1900, bookdecade1900, bookpublishercopenhagengecgad