. Coleoptera : general introduction and Cicindelidae and Paussidae. probable, however, that the active larvse hatch outand attach themselves to the wasp while it is gathering thiswood *. At any rate the young larva finds its way into a cellcontaining a wasp larva and immediately attacks it and penetratesinto its interior; after feeding within the larva and increasinglargely in size it quits the host, changes its skin, and then becomesshorter and thicker, At this stage it is found lying like acollar under the head of the wasp-grub, whose juices it goes ondevouring ; it then again changes its sk
. Coleoptera : general introduction and Cicindelidae and Paussidae. probable, however, that the active larvse hatch outand attach themselves to the wasp while it is gathering thiswood *. At any rate the young larva finds its way into a cellcontaining a wasp larva and immediately attacks it and penetratesinto its interior; after feeding within the larva and increasinglargely in size it quits the host, changes its skin, and then becomesshorter and thicker, At this stage it is found lying like acollar under the head of the wasp-grub, whose juices it goes ondevouring ; it then again changes its skin, devours the wholeremainder of the grub, changes to a pupa, and a few days after-wards emerges as a perfect insect. The full-grown larva is very * A fact against this is that no wasps have been found infested with theselarvae, as are the Andrence with the young Meloe larvaj; at the same time Ibelieve that the larva and not the egg must be carried to the nest. takes strong exception to my theory (Brit. Col. v, p. 81) that theegg is laid in the Fig. 73.—Emenadia ferruginea ; and prothorax of male. Antenna of male. 170 INTRODUCTION. like a Crabro or Pemphredon larva; and its appearance apparentlydeceives the wasps themselves, for they are, it is thought, hostileto the perfect insect *. Symbius blattarum is a very remarkable insect and is parasiticon cockroaches (BlattidjE). The male is winged, bnt the femaleis larviform and apterous, and neverjeaves the body of the cock-roach ; its life-history is not fully^known. The family contains more than 100 species, the greater numberof which inhabit temperate climates; four or five species ofEmenadia occur in the Indian region. Family 85. MELOIDiE (including LYTTIDyE). Head vertical, strongly and suddenly constricted ai some distancebehind the eyes, with an abrupt neclc; antenna variable, usuallyeleven-jointed, inserted before the eyes at the sides of the front; pro-thorax nearly always narrower at the b
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectbeetles, bookyear1912
