Entomology : with special reference to its biological and economic aspects . wo suborders. Suborder Corrodentia.—Including three families, as fol-lows : Tcnnitidcr. — Eyes facetted. Antennae 9-31 parts prognathous or hypognathous.^ Prothoraxlarge. Wings elongate, alike, membranous, delicate, withindefinite reticulation and with a characteristic basal elongate, with ten segments and a pair of short,two-jointed anal cerci. Integument delicate. Social in , Tcruies (Fig. 273). Over one hundred species areknown. Comstock places Termitid?e in an order by the
Entomology : with special reference to its biological and economic aspects . wo suborders. Suborder Corrodentia.—Including three families, as fol-lows : Tcnnitidcr. — Eyes facetted. Antennae 9-31 parts prognathous or hypognathous.^ Prothoraxlarge. Wings elongate, alike, membranous, delicate, withindefinite reticulation and with a characteristic basal elongate, with ten segments and a pair of short,two-jointed anal cerci. Integument delicate. Social in , Tcruies (Fig. 273). Over one hundred species areknown. Comstock places Termitid?e in an order by themselves,I so pt era. Embiidcc. — Eyes facetted. Antennae 15-32 parts prognathous. Thorax elongate, prothorax re-duced. Wings (sometimes absent) elongate, membranous,delicate, with few and feebly developed longitudinal and crossveins. Abdomen elongate, with ten or possibly eleven seg-^ Prognathous, directed forward; Iiypog)iatlwus, directed downward. 12 ENTOMOLOGY ments, and a pair of stont biarticulate cerci. Integument deli- cate.(Fig Not15)- Fig. Oligotoma michaeli. Length, mm.—AfterMcLachlan. social in habit. Examples, Emhia, OligotomaSome twenty species, all from warm climates. These insects are mostnearly related to Termit-idse and Psocidse. Psocidcc. — Eyes facet-ted. Antenna I3~5(^jointed. Mouth partshypognathous. Protho-rax reduced. Wingspresent, rudimentary orabsent; front pair thelarger; veins few and ir-regular. Abdomen withnine or ten segments andno cerci. Integument delicate. Example, Psocus (Fig. i6).About two hundred species. Comstock raises Psocidae to the rank of an order, for whichhe employs, in a new sense, Brauers term Corrodcntia. Suborder Mallophaga.—Wingless flattened insects, of para-sitic habit. Head largocelli or else absent. An-tennae 3-5 jointed. Mouthparts prognathous. Pro-thorax distinct; mesotho-rax often and metathoraxusually transferred to theabdominal region. Ab-dominal segments eight toten in number; no cerc
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectentomology, bookyear1
