Entomology 3rd edition - C Gillott - Chapter 3 pps

... b y flexure of the ter g a (see Chapter 14, Section 3. 3 .3) , which i s itself caused b y contraction and relaxation of the dorsal lon g itudinal muscles, it is clear that t he connection bet w een the mesono t um a n d m e t ano t u m and ... o f t h e h ea d an d (B) cross-sect i on o f t h e p roboscis. [From R. E. Snodgrass, Principles o f Insect Morphology. Copyright 1 935 by McGraw-H...

Ngày tải lên: 06/07/2014, 21:21

... 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...

Ngày tải lên: 06/07/2014, 21:21

... cockroaches, S mithson. M isc.Co ll ect . 134 (10) : 14 7 pp. R oth , L. M. , and Willis , E. R. , 19 6 0 , The biotic associations of cockroaches , S mit h son. Misc. C o ll ect. 141 ( 4422 ): 4 7 0 pp. Sc h a l , C. , ... 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,...

Ngày tải lên: 06/07/2014, 21:21

... 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...

Ngày tải lên: 06/07/2014, 21:21

... so-called semiochemicals. When the interaction is i ntras p eci c, the chemical messa g es are called p heromones. Chemicals involved in inter - s p ec i c i nteract i on, a ll e l oc h em i ca l s, f a ll ... i m p ortant f or phy to ph a g ous i nsects, f or w hi c hpl ant-re l ease d c h em i ca l sma y b eama j or d eterrent aga i nst i nsects attac k or a spec i c cue b yw hi...

Ngày tải lên: 06/07/2014, 21:21

... are i mportant h emo l ymp h const i tuents, espec i a ll y i n j uven il een d optery - g otes. Carbox y lic acids (citric, α -keto g lutaric, malic, fumaric, succinic, and oxaloacetic), which in the hemol y mph ... Principles o f Insect Morphology . C op y ri g ht 1 93 5 b y McGraw-Hill, Inc. Used with permission of McGraw-Hill Book Company. ] 535 THE C IR CU L A T O R Y S Y S TE...

Ngày tải lên: 06/07/2014, 21:21

... to three such structures occur. The spermatheca and the duct with which i t j o i ns t h e b ursa are li ne d w i t h cut i c l e. T h e cut i c l e over l a y s a one-ce ll -t hi c kl a y er ... a dj acent to w hi c h are many mitochondria, features characteristic of cells involved in ion exchange (compar e the structure of Malpighian tubule and rectal epithelial cells, Chapter 18,...

Ngày tải lên: 06/07/2014, 21:21

... 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 . T o t he Crustacea belong the crabs, ... 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 crustace...

Ngày tải lên: 06/07/2014, 21:21

... other structural features, for example, 34 CHAPTER 2 Grimaldi, 2004). The mandibles are not onl y dicond y lic (Chapter 3, Section 3. 2.2) but have other features that are characteristic of mandibles ... se q uences , C ladistics 18 :3 1 3 – 3 2 3. Kamp, J .W., 19 73, Numer i ca l c l ass ifi cat i on o f t h e ort h optero id s, w i t h spec i a l re f erence to t h e Gry ll...

Ngày tải lên: 06/07/2014, 21:21

... 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); ... R. , 19 73 , Numerica l Taxonomy—T h e Princip l es an d Practice of Numerica l Classi fi catio n , Freeman, San Francisco. Sokal, R. R., and Sne...

Ngày tải lên: 06/07/2014, 21:21