Yellowfaces - Neoerythromma
 This is a unique group of neotropical damselflies
consisting of two species. One specie the Carribean yellowface (Neoerythromma
cultellatum) occurs in South Texas, the other in Central America.
Yellowfaces look very similar to Bluets (Enallagmas) and are in some way
related to them. But the yellow face of the males easily
distinguishes them apart in the field. Other characteristics of
this genus are blue postocular spots, a pair of yellowish-olive frontal
thoracic stripes, blue lateral thorax, and blue on the dorsal abdominal
segments 8 and 9. Males have a somewhat longer cerci that bluets
which is noticeable when viewed close. Females are
generally somewhat duller than their male counterparts and lack a vulvar
spine. These brightly colored damselflies can be found
perched on the ground or on floating vegetation in ponds, and canals among
tall grass and sedges.
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