Nine New Species in the Desmopachria nitida Species-Group of the Neotropical Genus Desmopachria Babington, 1841 (Coleoptera: Adephaga: Dytiscidae: Hydroporinae: Hyphydrini)
Author
Miller, Kelly B.
Author
Wolfe, G. William
text
The Coleopterists Bulletin
2018
2018-03-23
72
1
97
112
http://dx.doi.org/10.1649/0010-065x-72.1.97
journal article
10.1649/0010-065X-72.1.97
1938-4394
4836701
Desmopachria vohrae
Miller and Wolfe
,
new species
Zoobank.org/
urn:lsid:zoobank.org:act:
069E8378-18A1-46C6-B1B8-321A5C9F30AA
(
Figs. 29–32
,
71
)
Type
Locality.
Venezuela
,
Bolivar
,
ca
.
25 km
E
El Burro
,
6°13ʹ4.6ʺ N
,
67°14ʹ26.4ʺ W
,
60 m
.
Diagnosis.
This species differs from others in the group by the elongate, slender male median lobe. In lateral aspect, the lobe is moderately broad medially but abruptly narrowed and apically very slender and sinuate (
Fig. 29
). In ventral aspect, it is moderately broad with the lateral margins broadly convergent to an elongate bifid apex (
Fig. 30
). The lateral lobe has the ventral ramus elongate and apically rounded, the dorsal ramus elongate and apically sharply pointed (
Figs. 31, 32
). The shape of the median lobe is somewhat similar to that of
D. gingerae
(
Fig. 9
) but the apex in
D. vohrae
, though narrow, is broader and more clearly apically bifid with the lateral margins somewhat more evenly convergent, not sinuate (
Fig. 30
). This is one of few members of the
D. nitida
species-group with some distinctive color patterning dorsally. Specimens are relatively dark with the head dark orange, the pronotum orange with the posterior margin darker medially, the elytra dark brown, darker along the suture then distinctly paler anteriorly and along lateral margins.
Figs. 33–51.
Male genitalia of
Desmopachria
species
in the
D
.
nitida
species-group.
D. annae
, redrawn from
Miller (2005)
: Median lobe –
33)
Right lateral aspect;
34)
Ventral aspect; Right lateral lobe –
35)
Right lateral aspect;
36)
Ventral aspect.
D. balionota
, redrawn from
Miller (2005)
: Median lobe –
37)
Right lateral aspect;
38)
Ventral aspect; Right lateral lobe –
39)
Right lateral aspect;
40)
Ventral aspect.
D. darlingtoni
, redrawn from
Young (1989)
:
41)
Aedeagus, ventral aspect.
D. draco
, redrawn from
Miller (1999)
: Median lobe –
42)
Right lateral aspect;
43)
Ventral aspect; Right lateral lobe –
44)
Right lateral aspect;
45)
Ventral aspect.
D. granoides
, redrawn from
Young (1986)
:
46)
Genitalia, ventral aspect;
47)
Right lateral lobe, right lateral aspect.
D. leptophallica
, redrawn from Braga and Fereira-Jr. (2014):
48)
Genitalia, ventral aspect.
D. liosomata
, redrawn from
Young (1986)
:
49)
Genitalia, ventral aspect;
50)
Right lateral lobe, right lateral aspect.
D. margarita
, redrawn from
Young (1990a)
:
51)
Genitalia, ventral aspect.
Figs. 52–68.
Male genitalia of
Desmopachria
species
in the
D
.
nitida
species-group.
D. nitida
, redrawn from
Young (1986)
:
52)
Aedeagus, ventral aspect;
53)
Apex of median lobe, right lateral aspect;
54)
Right lateral lobe, right lateral aspect.
D. nitidoides
, redrawn from
Young (1990a)
:
55)
Aedeagus, ventral aspect.
D. phacoides
, redrawn from
Guignot (1950)
:
56)
Median lobe, ventral aspect;
57)
Right lateral lobe, ventral aspect.
D. psarammo
, redrawn from
Miller (1999)
: Aedeagus –
58)
Dorsal aspect;
59)
Right lateral aspect.
D. rhea
, redrawn from
Miller (1999)
: Median lobe –
60)
Dorsal aspect;
61)
Ventral aspect;
62)
Right lateral aspect; Lateral lobe –
63)
Right lateral aspect;
64)
Ventral aspect.
D. subnotata
, redrawn from
Young (1986)
:
65)
Aedeagus, ventral aspect;
66)
Right lateral lobe, right lateral aspect.
D. zelota
, redrawn from
Young (1990a)
: Aedagus –
67)
Dorsal aspect;
68)
Right lateral aspect.
Figs. 69–70.
Distribution of
Desmopachria
species
in the
D. nitida
species-group.
69)
D. delongi
,
D. gyrationi
, and
D. kemptonae
;
70)
D. gingerae
and
D. hardyae
.
Description. Measurements:
TL =
1.4 mm
, GW = 1.0 mm, HW =
0.5 mm
, EW =
0.3 mm
, TL/ GW = 1.4, HW/EW = 1.9.
Coloration:
Head and pronotum evenly dark orange dorsally, posterior margin of pronotum medially narrowly brown. Elytron with base color dark brown with orange anterior and lateral margins, elytron grading into wide darker brown region medially along suture. Ventral surfaces dark orange except head appendages and meso- and metathoracic legs, prosternum and epipleuron more pale orange.
Male genitalia:
Male median lobe in lateral aspect slender, broader basally, apical portion elongate, bisinuate, very slender, apically sharply pointed (
Fig. 29
). Median lobe in ventral aspect broad basally, lateral margins convergent to linear, slender apex, apically slightly bifid (
Fig. 30
). Lateral lobe in lateral aspect very broad basally, apically with 2 long rami; ventral ramus elongate, apically rounded, dorsal ramus curved, apically sharply pointed (
Figs 31
); in ventral aspect moderately broad, ventral ramus straight, apically narrowly rounded, dorsal ramus abruptly curved mediad, apically sharply pointed (
Fig. 32
).
Figs. 71–72.
Distribution of
Desmopachria
species
in the
D. nitida
species-group.
71)
D. curseenae
,
D. singhae
, and
D. vohrae
;
72)
D. lloydi
.
Variation.
Specimens vary somewhat in the extent of the pale anterior and lateral regions.
Etymology.
This species is named
vohrae
in honor of Dr. Pamela D. Vohra-Khullar, MD.
Distribution.
This species is known from southwestern
Venezuela
(
Fig. 71
).
Habitat.
Specimens have been collected from a “rocky morichal.”
Type Material.
Holotype
in
MIZA
, male labeled, “
VENEZUELA
:
Bol´ıvar State
6°13ʹ4.6ʺN
,
67°14ʹ26.4ʺW
,
60m
ca.
25 km
E.
El Burro
12.i.2009
; leg.
Short
et al. rocky morichal; VZ09-0113-01X/
SEMC0876594
KUNHM-ENT
[label with barcode]/
HOLOTYPE
Desmopachria vohrae
Miller and Wolfe, 2017
[red label with black line border].”
Paratypes
: Two labeled same as
holotype
except with different specimen barcode labels (
SEMC0876546
,
SEMC0876547
) and each with “…
PARATYPE
Desmopachria vohrae
Miller and Wolfe, 2017
[blue label with black line border].”