. Popular science monthly. Fig. Fig. 9. Fig. CoNE-FLT {Rhingia rostrata). naturalFig. 10.—£ris(alis arbustorum, nat-ize. 6oo THE POPULAR SCIENCE Fig. 11.—StbtjCture or tul of theDiPTERA. I, humble-bee fly; Il-IV, cone-fly. II, Bide view of head, with the pro-boscis coiled; III, do., the proboscis be-ginning to uncoil; TV, do., completely un-coiled. E, eye; F. antennse ; »V, beak ;T T, palpi; B, extremity of proboscis ;A, lip; 1), mandible; C C, maxillse. hairs. Certain other structures entering into the formation of themouth (e. g., the lip, A, the mandible, D, a
. Popular science monthly. Fig. Fig. 9. Fig. CoNE-FLT {Rhingia rostrata). naturalFig. 10.—£ris(alis arbustorum, nat-ize. 6oo THE POPULAR SCIENCE Fig. 11.—StbtjCture or tul of theDiPTERA. I, humble-bee fly; Il-IV, cone-fly. II, Bide view of head, with the pro-boscis coiled; III, do., the proboscis be-ginning to uncoil; TV, do., completely un-coiled. E, eye; F. antennse ; »V, beak ;T T, palpi; B, extremity of proboscis ;A, lip; 1), mandible; C C, maxillse. hairs. Certain other structures entering into the formation of themouth (e. g., the lip, A, the mandible, D, and the maxillae, C C) almostequal it m length. The cone-fly {Mhingla rostrata), in common with many other broad-headed flies, pos-sesses the power of coiling up itsproboscis, the length of which isabout twelve millimetres (Fig. 11,II-IV). That anterior portion ofthe cone-flys head (II) is prolongedforward so as to form a sort of beak(S). When not in use, the proboscisis kept coiled up beneath this pro-longation. When required, the ex-tremity of the proboscis (B III) isfirst inclined downward, and theorgan is next suddenly shot out toits full length. When ful
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Keywords: ., bookcentury1800, bookdecade1870, booksubjectscience, bookyear1872
