Lasioglossum figueresi

[2] Found in Central America, it nests in vertical earthen banks which are normally inhabited by one, though sometimes two or even three, females.

[10] A female L. figueresi is recognized from L. aeneiventre and other Dialictus by its unique striped pattern on the sternum of its mesothorax, the pattern of punctures on its front scutum of its middle thoracic segment, its larger size, its hair, and its slightly yellow wings including the membrane, veins, and stigma.

Generally larger than males, it has a metallic dark-green head and a clypeal length greater than that of its supraclypeal area, which is slightly rounded and bulges.

It does not have a frontal line ridge from below the base of the antenna to about half the distance between its antennal sockets to its median ocellus, and its lateral ocelli are slightly nearer to each other than to their compound eyes.

In the middle of its thorax, it has a groove that is two-thirds the length of its metallic dark-green scutum of its middle thoracic segment, with deep punctures that divide as one moves towards the head, as well as about twelve stripes on each side which almost wrap around the propodeum.

Its black metasoma is shiny and mostly smooth, its brown-tinted black legs are shiny and flattened on the front surface with a well-defined rim raised above the surface of the plate at the base of the tarsus, and its sharply rounded wings have dull yellow membranes with smokey tips.

In comparison to a female, its compound eyes on its dark-green head converge more below and become wavy, and it has punctures on the clypeal area, vertex, and frons.

Its scutum of its middle thoracic segment has a deeply grooved middle line and a parapsidal line like in the female, its clypeus is dark green-purple with dark brown antennae that are lighter underneath and a brownish black tegula, and its terga has very close punctures with a shiny terga I-IV.

Compared to the females, the male's wings are clearer, its veins are nearly brown, and its yellow to golden-yellow hair is sparser.

Its genitalia also differs from other Dialictus since its gonostylus is nearly equal in length to its gonocoxite with the additional shape and position of the hairs.

Nests are marked by turrets made of small mud balls and are constructed during the night at the active season's beginning.

When turrets are destroyed, it will only repair or replace them if the soil is soft and malleable and will not close off the entrance like some other types of bees.

Heavy rains prevent much mating and foraging but some females keep extra cells open for new larvae for sporadic favorable weather during the rainy season.

Nests typically contain a female and her offspring and are enlarged at the beginning of the dry season in late November and early December.

[12] During the characteristic lull of the rainy season, male and female L. figueresi leave their nest in order to mate.

Males patrol the aggregations in an area, and when they notice a female that lands, they fly in a snake-like path towards her, pouncing on her head and causing them to fall together to the ground.

With their increased learning ability, they can also differentiate between receptive females and choose those who are more genetically favorable.

Having an additional female can double the amount of cells that a nest could contain, compared to other social insects which decline in efficacy as the number of individuals increases.

Plants provide it with pollen and nectar as food for both themselves and their larvae, while parasites invade their nests and affect their survival.

Adult females search for and consume pollen balls made from several sources such as Melampodium divaricatum, which is unique to L. figueresi and is most likely due to its abundance in their area, Croton bilbergianus, and other Asteraceae.

Front of insect head diagram
Hymenoptera morphology