''Colobodesmus crucis'' is a species of
millipede in the family
Sphaeriodesmidae
Sphaeriodesmidae is a family of flat-backed millipedes in the order Polydesmida. There are about 15 genera and at least 90 described species in Sphaeriodesmidae.
Genera
References
Further reading
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Polydesmida
Mill ...
that is endemic to
San Vito,
Costa Rica
Costa Rica (, ; ; literally "Rich Coast"), officially the Republic of Costa Rica ( es, República de Costa Rica), is a country in the Central American region of North America, bordered by Nicaragua to the north, the Caribbean Sea to the no ...
, where it was first discovered on 17–18 April 1972 by
Harold F. Loomis.
Description
The species is colorless but has a dark median stripe visible internally in preservation. ''C. crucis'' is the smallest species of ''Colobodesmus''. Males are long and wide, while the largest female is in length and in width. Their
labrum and
clypeus have 20
seta
In biology, setae (singular seta ; from the Latin word for "bristle") are any of a number of different bristle- or hair-like structures on living organisms.
Animal setae
Protostomes
Annelid setae are stiff bristles present on the body. Th ...
e which go in series. The frontal area that is behind the series have more setae than the back part does. Their first segment is subrectangular, while the anterior part is almost squared. The fourth segment is narrow sided, with the fifth segment is under segment 4 and 6. The posterior margins are almost parallel with the rounded outer one. The
gonopods are greatly diverged and are separated by a triangular lobe that comes out from the
apex. The opening at the base of the gonopods is almost straight in front and across, while its rim is raised; the sides and back margins are curved.
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References
Polydesmida
Animals described in 1972
Endemic fauna of Costa Rica
Millipedes of Central America
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