Large White-faced Darter
Encyclopedia
The Large White-faced Darter or Yellow-Spotted Whiteface (Leucorrhinia pectoralis) is a small dragonfly
Dragonfly
A dragonfly is a winged insect belonging to the order Odonata, the suborder Epiprocta or, in the strict sense, the infraorder Anisoptera . It is characterized by large multifaceted eyes, two pairs of strong transparent wings, and an elongated body...

 belonging to the genus
Genus
In biology, a genus is a low-level taxonomic rank used in the biological classification of living and fossil organisms, which is an example of definition by genus and differentia...

 Leucorrhinia
Leucorrhinia
Leucorrhinia is a genus of dragonfly in the family Libellulidae. They commonly called Whitefaces because of their distinctive pale frons.-Species:Listed alphabetically.*Leucorrhinia albifrons – Dark Whiteface...

in the family Libellulidae
Libellulidae
The skimmers or perchers and their relatives form the Libellulidae, the largest dragonfly family in the world. It is sometimes considered to contain the Corduliidae as the subfamily Corduliinae and the Macromiidae as the subfamily Macromiinae. Even if these are excluded , there still remains a...

.

This species is 32–39 mm (1.3–1.5 in) long. It is easily identified by the large yellow seventh segment
Segmentation (biology)
Segmentation in biology refers to either a type of gastrointestinal motility or the division of some animal and plant body plans into a series of repetitive segments. This article will focus on the segmentation of animal body plans, specifically using the examples of the phyla Arthropoda,...

 of its abdomen
Abdomen
In vertebrates such as mammals the abdomen constitutes the part of the body between the thorax and pelvis. The region enclosed by the abdomen is termed the abdominal cavity...

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