Monograph of the bombycine moths of North America, including their transformations and origin of the larval markings and armature . singular flattened and fluted set;e represented by Chapman areimniue in lepidopterous larviv. He also describes a trefoil shaped sucker on the under side ofthe innth and tenth abdominal segments, very unusual, though as it api)ears to be paired itdoes not seem to me, as Cliapman thinks, to indicate a further jioint of relationship to Chapman states tliat tlie liead is retractile so far that it may occupy the interior of tliesecond thoracic segment,
Monograph of the bombycine moths of North America, including their transformations and origin of the larval markings and armature . singular flattened and fluted set;e represented by Chapman areimniue in lepidopterous larviv. He also describes a trefoil shaped sucker on the under side ofthe innth and tenth abdominal segments, very unusual, though as it api)ears to be paired itdoes not seem to me, as Cliapman thinks, to indicate a further jioint of relationship to Chapman states tliat tlie liead is retractile so far that it may occupy the interior of tliesecond thoracic segment, and ho says that the antenniu are remarkably long for a lepidopterouslarva. He remarlcs that there are two strong mandibles, with four brown teeth, and adds: Two pairs of palpi are also visible—two and three-jointed—apparently those usual in Icpidopteious lar\M, hutI have not defined their relations. There is also a central point (spinneret). I add rough sketches of the mouth parts, as far as I could draw them with the camera fromspecimens mounted in balsam by Dr. Chapman. The labrnm (tig. 4, D Ibr.) is less divided than. Fig. 4.—Head 111 larvii ol Eriucephala calthella. A, anterior region enlarged; wd, mandible;mx. niaxill:!; nul, ;intennii-; sp. apiuncret.; B. lat inaxilto ami 2d maxilla- Ip; C, the same;D. lalirum Ulir). usual 111 lepidopterous larva, but is not, except in this respect, mucii uiilii<e that of Tineids (see Dimmocks fig. li, ]). 100, Psyche, iii). The four-jointed antenna (tig. 4, ant.),ending in two uneiiual seta, are of very unusual size and length, and so are tlie maxillary palpi(fig. 4, }).), which are mucli larger tlian in any caterpilhir known to me, and are greatlyin disproportion to tlie maxillary lobes; the maxilla itself differs notably from that of othercaterpillars; what appears to be the lacinia is palpiform and two jointed. Tlie labium and itspalpi are much as in Oracilaria, but the palpi appear to be tliree-Joiiited,
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Keywords: ., bookcentury1900, bookdecade1910, bookpublisherwashingtongovtprin
