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Show INSeCTA • . 116 h t of the Acu. 1 section of the H yme noptera, t f at he ov.t post' tO I•. The seconc " . h bsence o · 'ffers from the first m t e a d of three pieces LEA T A, dll d ~nd retractile sting co~pos~es and in the neu- A concea e r f . · the 1ema ' . · the place o tt tn . . Someumes, as m usually supp. Ies b'ch forltl commumttes. h Insect defends f spec1es w l . nd t e . ters ~ Ants this sting is want!dngl? auid contained in spectal certam ' . f an ac1 1q itself by the ejacu_la~~~ 0 h their antennre glandular reservmrs f this section always a;~ . ts namely The Hvmenoptera o tant number o JOm ' , -d composed of a cons ·n the females~ The simpl.e, a;n in the males, and twelv~h~ maxillre, frequently of tl~trte enerallv filiform, thosedof h se of the labium four. ~~~Pl'o~~:s~ having six joints~=~ fr!q:ently less denta~ed in The man dibles are smallesri,t e sex. The abdomen, umted· to the males than in the oppo.. dicle is composed of sev.en rmgs the t h ora X by a thread. o.r pteh e fem' a 1e s. The four wmgs a11r e in the males, and of SIX m h various sorts of ordinar~ ce s. always veined, and present s~it:te of feet, and feed. o~ ah~ents The larvre are always de 1 neuters, consistmg either pre~ented to them l:ly the ~~l:aj:~::s of fruits, or a mixture of of the bodies of Insects, . . t · na and honey· . 1 . pollen, s ami . d' . d d into four famiieS. This sectl.on IS 1Vl e -' M Spinola, Insect. Ligur; d Mus d'Hist. Nat.; ax., d. Lepeletier, Ann. a • 'd Am~. ' nd Panzer on the Hymenoptera. hich prod uce this venomous fluJ , st eed J\lrme a. . 1 tive to the organs w f :M: Leon Dufour, quo e ( 1) For details re a . s of Reaumur, and that o . the Memoire sur les A~etlle the Insects of this order. . general observations upon m our . r .(: rl • '>., l I HYMENOPTERA, 117 FAMILY I. HET.EROGYNA. The :first family of our second section is composed of two or three kinds of individuals, the most common of which, the neuters and females, are apterous, and but rarely furnished with very distinct ocelli. Their antennre are always geniculate, and the ligula is small, rounded and concave, or cochleariform. Some form communities in which we find three kinds of individuals, of which the males and females are winged, and the neuters apterous. In the two last the antennre gradually enlat•ge, and the length of their first joint is t least equal to that of the third of the whole organ; the second is almost as long as the third, and has the form of a reversed cone. The labrum of the neuters is large, corneous, and falls perpendicularly under the mandibles. These Hymenoptera compose the genus j I FoRMICA, ~in.(l) Or that of the Ants, so highly celebrated for their fot·esight, and so well known, some by their depredations in our houses, where they attack our sugar and preserved viands, communicating to them at the same time a musky and disagreeable odour, and others by the injury they do to our trees, by gnawing their interior in order to form domicils fot• their colonies. The abdominal pedicle of these Insects is in the form of a scale or knot, either double or single, a character by which they are easily recognized. Their antennre are geniculate, and usually somewhat largest near the extremity; the head is triangular, with oval or rounded and entire eyes, and the clypeus large; the mandibles are very strong in the greater numbet·, but vat·y greatly as to (1) The tribe of the Fonllucux.lB, Lat., Fam. Nat. du Regn. Anim., 452. |
