Identifier: annualreporto441891newy (find matches)
Title: Annual report of the Regents
Year: 1889 (1880s)
Authors: New York State Museum University of the State of New York. Board of Regents
Subjects: New York State Museum Science
Publisher: Albany : J.B. Lyon, State Printer
Contributing Library: Smithsonian Libraries
Digitizing Sponsor: Biodiversity Heritage Library

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sting eveij after death, and thestridulation of the imago, (*J are all recorded by authors. A Mexican Species of Dynastes. In the above. Dr. Eiley has referred to the description of theMexican Dynastes Hyllus Chevr., by Dr. Eugene Duges, of Guanajuato,Mexico. For comparison with the early stages of D. Tityus, T>£, Dugesfigures of D. Hyllus are herewith given, copied ^rom his notice of thespecies in the place above cited. * There is no record of the stridulation of the larva having been heard. Dr. Hamilton(loc. cit) has remarked of the imago: While no stridulating organs are present, theyhave the power to produce a sound that may answer the same purpose, somewhatresembling that of an angry goose. The pygidium and part of the last ventral surfaceare very hairy, and by withdrawing the abdomen from the elytra so as to admit airand then suddenly forcing it out through the hair by a sudden extension, a noise isproduced that is rather alarming to one unacquainted with their harmlessness.
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Fig. 12.— The larva of Dynastes Hyllus. Figs. 13,14,15, the pupa of the same in lateral ventral, and dorsal views. Report of the State Entomologist 251 The larva, Fig. 12, with others, was found within an opening in thetrunk of an oak, in the midst of a mass of woody debris. One havingtransformed to the pupa, gave out the imago in about a month.Later, in enlarging the opening, two pupae of males (Figs. 13, 14 and15) were found, inclosed in a large (une enorme) cocoon formed of thedetritus in which the larvse had lived, smooth on the interior, and ofa thick)iess not less than a centimetre.* In the same oak, and associated with the above, were thirty or thirty-five larvae of the closely allied StrateguSy and several of Mallodon angustatum. Feeding Habits of the Beetle. In the notice of this insect in the Fifth Report on the Insects of NewYork, referring to its feeding habits, Mr. G. E. Murrell is quoted asstating : When feeding on the ash, they place themselves longitudinally on asmoo

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