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cornicle |
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cornicle [′kȯr·nə·kəl]
(invertebrate zoology) Either of two protruding horn-shaped dorsal tubes in aphids which secrete a waxy fluid. Want to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit the webmaster's page for free fun content. |
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No references found | The alatae viviparous females are more long-bodied and have longer siphunculi than the apterous ones. Morphologically, the genus Aulacorthum is well characterized by "head with well developed antennal tubercles, inner sides of tubercles nearly parallel; median tubercle on frons hardly developed; head usually granulate in apterous; first tarsal chaetotaxy 3:3:3; siphunculi cylindrical, or slightly swollen, normally broad at base, rather long with usually a few row of flat hexagonal cells at apex under broad distal flange; cauda tongue-shaped with 4-8 setae, mostly 7 setae. cuschensis because (1) membranous distal part of the caudal knob in apterous viviparous females is small, contrasting very little with the rest of the knob; (2) the dorsum of head, antennae, legs, and siphunculi are very weakly pigmented in apterous viviparous females; (3) setiferous sclerites are absent from dorsum of abdomen in apterous viviparous females; and (4) they are green when alive. |
Siphunculi |
Siphonoptera siphonosome siphonostele siphonostele siphonostelic siphonostelic Siphonostomata Siphonostomatous Siphonostome Siphonotretacea siphonozooid siphons siphons siphons Siphorhinal Siphorhinian Siphoviridae SIPHRO siphuncle siphuncle Siphuncled Siphuncled siphuncles siphuncles siphuncular siphuncular Siphunculata siphunculate siphunculate Siphunculated Siphunculi SIPISIPIA Sipiagin, Dmitrii Sipiagin, Dmitrii Sergeevich SIPIC Sipid Sipid SIPIEM Siping Siping SIPIT SIPIVT SIPJ SIPK Sipl Sipla SIPLAN Siple Siple Siple Dome A Siple Dome B SIPLHC SIPLN Sipm SIPMM SIPMS SIPMT | |||||||
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