. Annales de la Société entomologique de Belgique. Insects; Entomology. Fig. 16. more dai-k browii or black on the al)dominal tergites. During each moiill Ihe wliole liead of the iiymph is doiibled up undcr the lliorax ; as it is in Ihe embryo in the egg, when ready to halch. The nymphe in ail instars hâve an odd habit oC rnbbing one leg on another, very much as the adnlt loinalc does when thickening the wall of lier ootheca. Likc other bugs, Ihey clean the proboscis by taking it l)etween ihe larsi of the forelegs, and drawing them fi-om the hase to Ihc tip ot the proboscis, a few limes
. Annales de la Société entomologique de Belgique. Insects; Entomology. Fig. 16. more dai-k browii or black on the al)dominal tergites. During each moiill Ihe wliole liead of the iiymph is doiibled up undcr the lliorax ; as it is in Ihe embryo in the egg, when ready to halch. The nymphe in ail instars hâve an odd habit oC rnbbing one leg on another, very much as the adnlt loinalc does when thickening the wall of lier ootheca. Likc other bugs, Ihey clean the proboscis by taking it l)etween ihe larsi of the forelegs, and drawing them fi-om the hase to Ihc tip ot the proboscis, a few limes in succession. In llie (Ifth instar the clouring is slill much the same, but there is rather more black on the abdomen; the tegmina are larger and cover the anlei'ior part of the abdomen, and ai'c nearly black. 'i'he legs in Ihis instar are pale yellowish brown with l)lack markings, especially on the fe- mora; the I asal segments otthe antennœ are markcd with black and pale yello- wish brown; Ihe terminal segments are wholly pale yellowisli-brown, exce[)t Ibr a small black mai-king at tlie base, near tlie ai-ticulation. The expansion dorsally oC the slernal plates of the abdomen is noticeablc in Uns instar. Direclly aller the liflh and final moult, Ihe gênerai clour is pale orange, the dorsolateral expansions of the abdomen clourless and semitransparent, and margined lineiy with black. A black médian line on the sternites, and a black triangular marking on each ventral segment on each side, the apex merging in the médian black line. Legs very pale, *^^I1 . wilh two small black mar^ kings round the femora. Tegmina pale orange at the base, shading into paler yellow. fjyes black. Tlie colourof the freshiy moul- ted adult is in fact the same as thatof the last nymphal instar, and the bug does ^''"" ^"' notattain full adult colou- ring for some four liours, the last i)ai'ts to beconic l)lack being the coxaî of the fore legs. The small, chitinous, bilid |»roc
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Keywords: ., bookcentury1800, bookd, booksubjectentomology, booksubjectinsects
