摘要:

The mimicry, population ecology1, adult behaviour and life cycle ofHeliconius xanthocleswere studied at two sites in Colombian tropical forest. The results were compared with the known biology of otherHeliconiusspecies.H. xanthoclesis probably unpalatable and is a Mullerian comimic of some other species. In the Amazon basinH. xanthoclesbelongs to the ‘dennis ray’ mimicry ring of the Heliconiini, which includesEueides tales, H. bumeyi, H. elevatus, H. melpomeneandH. erato.In the Rio Negro valley, where the latter species either do not exist or have different mimetic allegiances, the ‘clennis‐ray’ pattern ofH. xanthoclesbreaks down. The adults are pollen‐feeders, like otherHeliconius.but they also visit other food sources such as bird droppings. During a mark‐recapture programme in the Rio Negro, adults were found to be almost entirely restricted to small areas near their foodplantPassiflorapraeacuta.Females were rarer than males, but this was probably due to a behavioural difference between the sexes. The males had a Fisher‐Ford survival rate of 0.95 per day and a life expectancy of 19 days. Population size estimates of males were between 11 and 17 individuals. These estimates are lower than, but comparable to those for otherHeliconius.Males as well as females visit the larval toodplant, and an adult male was observed hovering over a small group of larvae. The females lav batches of 12–41 eggs. The largest batch (41 eggs) was laid cooperatively by two females. The larvae are gregarious feeders on shoot‐tips ofPassiflora praeacuta.and all lile stages are described for the first time. Predation on the larvae by a bug is described. The pupa has a distinctive morphology unlike that of otherHeliconius.The adult population ecology, mimicry and larval beha

ISSN:0024-4082    

DOI:10.1111/j.1096-3642.1980.tb00845.x

出版商:Blackwell Publishing Ltd    

年代:1980

数据来源: WILEY

ISSN:0024-4082    

DOI:10.1111/j.1096-3642.1980.tb00846.x

出版商:Blackwell Publishing Ltd    

年代:1980

数据来源: WILEY

摘要:

Over the lint week of postnatal life, dermal dendritic cells stream upwards to invade the epidermis of the mouse tail and back skin. Their migrations seem associated with the development of distinct types of epidermal physiology:ortho‐ and parakeratosis. Changes from neonatal epidermal morphology occur at similar times in both back and tail skin. The hairv mouse back skin is alwavs orthokeratotic, but the initially orthokeratotic tail epidermis later becomes parakeratolir in the scale regions, remaining orthokeratotic in areas of hair production.Dermal cells studied were adenosine triphosphatase (ATPase)‐, non‐specific esterase (NSE)‐, naphthvl AS‐D chloroacetate‐, and dihydroxyphenvlalanine (dopa)‐positive dendritic cells. The results are discussed in connection with hair growth and glabrous epidermal kcratinization. Dendritic cell regulation of epidermal physiology involving the dermis and pilosebaceous unit is discussed in relation to reviewed work on mesenchymal‐epithelial interactions in animal

ISSN:0024-4082    

DOI:10.1111/j.1096-3642.1980.tb00847.x

出版商:Blackwell Publishing Ltd    

年代:1980

数据来源: WILEY

摘要:

An integumental anatomy for the lycaenid butterflyGlaucopsyche lygdamusis presented. Comparisons with other lepidopteran taxa are made to rectify the homology of parts and contrast anatomical divergences within the Lycaenidae. A general terminology based on Snodgrass is given, to replace many of the specialized and often synonymous terms restricted to the Lepidoptera. Many common anatomical svnonyms are also given. Several reinterpretations of the anatomy and homology of various integumental regions are discussed. A previously unreported cuticular anomaly on abdominal tergum 2 of male Polyommatinae (Downey's area) is described. The following new or newly combined terms are used:postgenal‐occipital area, postgenal‐occipital protuberance, dorsal temporal sulci, postantennal projections, pronotal projection, infraepisternal‐basisternal plate, paracoxal‐marginopleural sulci, dorsal epimeral sulci, ventral epimeral sulci, secondary coxal sulci, ventral subcostal‐radial process, lateral secondary sclerite and Down

ISSN:0024-4082    

DOI:10.1111/j.1096-3642.1980.tb00848.x

出版商:Blackwell Publishing Ltd    

年代:1980

数据来源: WILEY

ISSN:0024-4082    

DOI:10.1111/j.1096-3642.1980.tb00845a.x

出版商:Blackwell Publishing Ltd    

年代:1980

数据来源: WILEY