Entomology 3rd edition - C Gillott - Chapter 24 docx

... 7 30 CHAPTER 24 F I GU RE 24. 1. ( A ) C actoblastis cactorum caterpillars feeding on cactus pad; and cactus-infested pasture before (B) an d a f ter (C) re l ease o f C acto bl asti s . [ From ... espec i a ll yap hid san d w hi te fli es, h ave b ecome s i gn ifi cant m id - and late-season pests. The feces of these insects can severel y reduce the qualit y of th e l int, creatin...

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... most s p ecies are described on the basis of their structure, es p e- ciall y external characters. However, on occasion such “morphospecies” are not equiva- l ent to bi o l og i ca l spec i es (repro d uct i ve l y i so l ate d popu l at i ons); ... ke y . Pictorial ke y s, which can be valuable to both specialists an d n on-specialists, include not only printed material but also user-friendl...

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... t h e b as i so f X-ray stu di es o f pyr i t i ze d tr il o bi te spec i mens, w hi c h s h ow that trilobites possess a combination of chelicerate and crustacean characteristics, Cisne ( 1974) concluded ... mo d ern p h y l ogenet i c i sts cannot accept t h e Ate l ocerata (see Sect i on 3.3.1) an d t h eUn i ram i a (se e Sections 3.2.2 and 3.3) as monoph y letic taxa . C rustacea ....

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... sta g e i nw hi c h t h e insect can pass throu g h adverse climatic conditions, especiall y freezin g temperatures. 4. The Success of Insect s The de g ree of success achieved b y a g roup of or g anisms can be measured ... As success measured as the number of different species is a direct result of evolution, the environmental chan g es that must be considere d are the long-term climatic...

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... Research Council of Canada and the author. B, from R. E. Snod g rass, P rinciples o f I nsect Morpholo gy. Copyright 1935 by McGraw-Hill, Inc. Used with permission of McGraw-Hill Book Company. ] ( see ... (B) cross - section of the proboscis. [From R. E. Snodgrass, P rinciples o f Insect Morphology . Copyright 1935 by McGraw-Hill, I nc. Use d w i t h perm i ss i on o f McGraw-H ill Boo k...

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... aquatic. Occasionally, species form large aggregations on the surfac e o f snow, though the significance of this is not clear. Most Collembola cannot tolerate d esiccation, and those that colonize ... intrinsic gut cellulase. Only rarely are they predaceous. Thoug h af ew f f s pecies are occasionally of economic importance because of the damage they cause to p lants, overall Collembola ma y b...

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... a ll ow i n g ot h er c onspeci c males to occup y the space. Should a receptive female conspeci c enter the territor y and be reco g nized b y the male (probabl y usin g visual cues), he will attempt ... t h e j uven il eort h ea d u l t f orm . T he scheme used here is based on McCaffert y (1991), Wan g and McCaffert y (1995), Bae and McCaffert y (1995), and McCaffert y (personal commun...

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... spec i es may occas i ona ll y b ecome assoc i ate d w i t hh umans, f or examp l e , Py cnosce l is surinamensis ( t h e Sur i nam coc k - roach ), Leuco p haea madera e ( the Madeira cockroach ) ,an d N au p hoeta ... di ff erentialis; ( B ) th e Caro li na g rass h opper , Dissosteira caro l ina ; and ( C ) the South American locust, S chisto - ce r ca a m e r ica n a . [A, B, fr...

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... per i o di cc i ca d a . M agi- cica d a septen d ecim ( C i ca did ae ) . [From C. L. Mar l att, 1907, The periodical cicada , Bull. U.S. Dept A g r. Bur. Ent. (N. S. ) 71 :181 pp.] 222 CHAPTER 8 F IGURE ... lac insect, p roduces a secre- tion from which shellac is p re p ared. The PSEUDOCOCCIDAE (2000 s p ecies worldwide) are t h e common mea l y b ugs, so-ca ll e db ecause f ema l es...

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... an db ene fi c i a l species: Ep hestia , C adr a , and P lo d i a include species that are stored-products pests, whil e C actoblastis cactorum is amon g the best-known biolo g ical control a g ents (see Chapter 24, Section 2.3 ... mecopteran, an d spec i a li ze df eatures. Accor di ng to t h ere l a- t ive si g nificance with which earlier authors viewed these characters, the famil...

Ngày tải lên: 06/07/2014, 21:21