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Apart from the costal and the anal veins, each vein can be branched, in which case the branches are numbered from anterior to posterior. For example, the two branches of the subcostal vein will be called
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In the case where two cells are separated by a crossvein but have the same anterior longitudinal vein, they should have the same name. To avoid this, they are attributed a number. For example, the R
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Crossveins link the longitudinal veins, and are named accordingly (for example, the medio-cubital crossvein is termed
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Fraser, F. C. 1938. A note on the fallaciousness of the theory of pretracheation in the venation of
Odonata.
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Comstock, J.H. & Needham, J.G. (1898) The wings of
Insects. IX The Venation of the Wings of Hymenoptera.
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The
Comstock and Needham system attributes different names to the veins on an insect's wing. From the
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According to the
Comstock–Needham system, the cubitus forks once, producing the cubital veins Cu
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The cells are named after the vein on the anterior side; for instance, the cell between Sc
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The media may also fork twice, therefore having four branches reaching the wing margin.
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cell is divided in two by the radial cross vein: the basal cell is termed "first R
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The radius typically branches once near the base, producing anteriorly the
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Insect wing venation, showing the names after the
Comstock–Needham system
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If a cell is bordered anteriorly by a forking vein, such as R
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Borror and DeLong's introduction to the study of insects
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of all insect wings. This system was based on
Needham's
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North–Carolina state
University course on insect wings
345:Triplehorn, Charles A.; Johnson Norman F. (2005).
246:). Some crossveins have their own name, like the
226:As there are several anal veins, they are called
46:in 1898. It was an important step in showing the
125:, in analogy with a bone in the forearm, the
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211:. According to some other authorities, Cu
234:, and so on. They are usually unforked.
161:, in reference to its posterior location
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83:(leading) edge of the wing towards the
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197:. The radial sector may fork twice.
27:Naming system for insect wing veins
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292:", and the distal cell "second R
215:may fork again, producing the Cu
54:that was later discredited by
34:is a naming system for insect
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328:Proc. Roy. Ent. Soc. London
254:and the sectoral crossvein
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395:Biological classification
339:The American Naturalist
56:Frederic Charles Fraser
32:Comstock–Needham system
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52:pretracheation theory
190:and posteriorly the
351:Thomson Brooks/Cole
87:(rear), the major
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67:Longitudinal veins
91:veins are named:
16:(Redirected from
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349:(7th ed.).
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262:Cell terminology
62:Vein terminology
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18:Costal vein
384:Categories
315:References
274:is called
250:crossvein
238:Crossveins
156:anal veins
149:, meaning
137:, meaning
113:, meaning
101:, meaning
36:wing veins
85:posterior
58:in 1938.
108:subcosta
81:anterior
48:homology
248:humeral
144:cubitus
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219:and Cu
207:and Cu
139:middle
127:radius
120:radius
303:and R
270:and R
151:elbow
132:media
96:costa
355:ISBN
244:m-cu
173:and
42:and
30:The
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147:Cu
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159:A
135:M
123:R
99:C
20:)
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