Three new genera of acidocerine water scavenger beetles from tropical South America (Coleoptera, Hydrophilidae, Acidocerinae)
Author
Giron, Jennifer C.
https://orcid.org/0000-0002-0851-6883
Department of Ecology & Evolutionary Biology, and Division of Entomology, Biodiversity Institute, University of Kansas, Lawrence, KS 66045, USA
entiminae@gmail.com
Author
Short, Andrew Edward Z.
Department of Ecology & Evolutionary Biology, and Division of Entomology, Biodiversity Institute, University of Kansas, Lawrence, KS 66045, USA
text
ZooKeys
2018
2018-06-19
768
113
158
http://dx.doi.org/10.3897/zookeys.768.24423
journal article
http://dx.doi.org/10.3897/zookeys.768.24423
1313-2970-768-113
399BCC3E9D6F4231870E05C79B9FD4B0
CB01CA30FFB4F96DFFA2FF86FFAEFFB6
1298776
Nanosaphes castaneus
sp. n.
Figs 15A-D
; 18D
; 19
Type
material examined.
Holotype (male)
: "
BRAZIL:
Para
: Rio Xingu/ Camp (
52°22'W
,
3°39'S
)/ Altamira (ca 60km S.)/ 12 Oct 1986/ P. Spangler & O. Flint// Colln. #21, pond at 2nd/ palm grove on trail 1" (USNM).
Paratypes (3): BRAZIL:
Para
: Rio Xingu, Camp (
52°22'W
,
3°39'S
)/ Altamira (ca 60km S.)/ 12 Oct 1986/ P. Spangler & O. Flint (1, USNM); same data as holotype (2, USNM, SEMC).
Differential diagnosis.
Nanosaphes castaneus
can be easily recognized by its smooth elytra (as opposed to rather coarsely punctate as in
N. punctatus
, compare Fig.
15A, B
to Fig.
15E, F
), and the uniform brown coloration along the body (as opposed to having yellow pronotum and brown elytra (as in
N. hesperus
and
N. tricolor
, compare Fig.
15A-D
to Fig.
16
).
Description.
Body length 1.3-1.4 mm, width 0.8-0.9 mm. Body elongate oval, weakly convex, uniformly brown throughout (Fig.
15A, B
). Dorsal surface shallowly
punctate
. Posterior elevation of mesoventrite weakly carinate. Pubescence of ventral surface scanty. Aedeagus (Fig.
18C
) with basal piece 0.4-times the length of parameres; parameres longer than median lobe, with rounded apex; gonopore situated near apical third of median lobe.
Etymology.
Named in reference to the uniform brown coloration along the body, with the Latin word
castaneus
meaning brown, of the color of chestnuts.
Distribution.
Brazil (
Para
). Only known from one locality. See Fig.
19
.
Biology.
In referencing
Spangler's
original field notes, these specimens were collected in forested pond.