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. An account of British flies (Diptera). Diptera -- Great Britain. 144 AN A ceo UNT OF BRITISH FLIES. the larvae as having four large posterior segments and the remainder of the body, leech-like, marked by numerous annulations. Boscs* describes an American species, but talks of its body as having distinct segments. This does not answer to Dufour's description of the leech- like body. There is only one species found in England, as far as we know. C. lineatus, F. = P. laticornis, Mg. Tawny. Thorax tawny, with three brown longitudinal stripes; pectus brown; metathorax brownish. Abdomen blackish-b
. An account of British flies (Diptera). Diptera -- Great Britain. 144 AN A ceo UNT OF BRITISH FLIES. the larvae as having four large posterior segments and the remainder of the body, leech-like, marked by numerous annulations. Boscs* describes an American species, but talks of its body as having distinct segments. This does not answer to Dufour's description of the leech- like body. There is only one species found in England, as far as we know. C. lineatus, F. = P. laticornis, Mg. Tawny. Thorax tawny, with three brown longitudinal stripes; pectus brown; metathorax brownish. Abdomen blackish-brown or black ; -there is a yellowish band with a spot on each side on the anterior borders of the third, fourth and fifth segments ; hypopygium brown ; ovipositor and lamellae yellow. Head brown, proboscis and palpi yellowish. Antennae broad, brown, testaceous at base, about as long as the head and thorax. Legs yellow; base of tibice and tarsi brown, also base of femora ; metatarsi of the anterior legs longer than tibiae ; spines and spurs of the latter brown. Wings shorter than the abdomen; grayish, with apex brown, also a brown spot near the centre and one below at the posterior border of wing. Length 3 J to Walker describes /'. lineata F., and P. laticoinis. The latter is most likely the (? of Ihieata. He gives the length as 5 and 4 lin. P. (C.) laticornis is figured, pi. xxiii., fig. 5. This figure resembles P. (C.) lincatus F. Section 5.—Macrocerifice. Antennae very long, filiform, i6-jointed; may be three times as long as the body, longer in (J than in the ? . Body slender, pubes- cent. Head small, ocelli three, eyes nearly round. Labium forming two large pubescent lobes. Palpi 4-jointed, second smaller than the. Fig. 30.—AwiQnn:^. oi z. Alacrocera, ?. first, fourth fairly long. Thorax short and elliptical. Abdomen cylindrical in ,^; elongate, fusciform in ?. Legs long and slender ; tibiae without spines; their spurs very small. Wings moderately * Diet. d'Hist. Nat ,
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Keywords: ., bookcentury1800, bookdecade1890, bookpublisherlondo, bookyear1892