Half hours with insects . Eristalis Dytisous larva. Mcrodon and larva. (Fig. 105). It has to rise to the surface for air, which isinspired through the bristle-like tubes at the end of Ihebody. So with the larval Eristalis (Fig. 106), and its allyMerodon hardus {¥\g. \Q1; a, larva) and Ilelophilus (). These maggots frequent the most loathsome ditches,thick with mud and putref3ing matter. Here they lie actingas scavengers and doing all they can to aid the State Boardof Health. They wave their long flexible respiratory tubesaloft and drink in the pure air of heaven, not un
Half hours with insects . Eristalis Dytisous larva. Mcrodon and larva. (Fig. 105). It has to rise to the surface for air, which isinspired through the bristle-like tubes at the end of Ihebody. So with the larval Eristalis (Fig. 106), and its allyMerodon hardus {¥\g. \Q1; a, larva) and Ilelophilus (). These maggots frequent the most loathsome ditches,thick with mud and putref3ing matter. Here they lie actingas scavengers and doing all they can to aid the State Boardof Health. They wave their long flexible respiratory tubesaloft and drink in the pure air of heaven, not unmixed, per-haps, with the less than spicy odors emanating from theirnative puddle. Some of the Ilelophili frequent stronglybrackish water, in fact almost purely salt water, while 15 144 HALF HOURS WITH USTSECTS. [Packard. Epliydi-a, with its rather short, thick tubes and fleshy feet,clambers over green sea weeds in salt pools removed abovethe reach of ordinary tides, or lives in the brine pools ofIllinois, or the salt lakes of the West, The aquati
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectinsects, bookyear1881
