New and little known Epilamprinae (Dictyoptera: Blaberidae) from the collections of the Muséum d’histoire naturelle de Genève and the Zoological Institute RAS, Saint Petersburg. Part 2
Author
Leonid N. Anisyutkin
text
Revue suisse de Zoologie
2016
123
1
139
152
journal article
39049
10.5281/zenodo.46293
1f2c8087-a4b4-408a-9366-ffaab4bcd309
0035-418
46293
Gurneya rothi
sp. nov.
Figs 59-70
Etymology:
The species is named in honor of Dr. Louis Roth, famous specialist in cockroach taxonomy.
Material examined:
Holotype
;
ZIN
; male;
Brazil
, “Bahia”, “
Pinaconota bifasciata
Sauss.
”, “R. Shelford det.”, genital complex in prep.
120815
/01.
Description of male (
holotype
):
General colour dirty yellowish; epicranium and two proximal antennal segments brownish; eyes grey; antennae, with exception of two proximal segments, grey, yellowish toward apex; maxillary and labial palps, tegmina in about distal half, wings and abdomen yellow; pronotum with 2 black stripes (
Fig. 60
). Surfaces smooth and lustrous, distal parts of antennae (approximately from 7-8th segments) dull; head (
Fig. 59
), pronotum and tegmina in about proximal third with deep punctuation. Head about as long as wide (
Fig. 59
); ocellar spots absent; facial part globular, with weak semicircular plate between eyes; distance between eyes 0.8 times eye length; distance between antennal sockets about 1.7 times scape length (
0.9 mm
); approximate length ratio of 3rd-5th segments of maxillary palps 1.5: 1.0: 1.3. Pronotum widely rounded anteriorly with weakly angulate caudal margin (
Fig. 60
). Tegmina and wings completely developed, surpassing abdominal apex. Tegmina with rounded apex; venation subobsolete in proximal fourth, distinct in distal half; costal field long and narrow with obsolete venation;
Sc
thickened (well visible on ventral side of tegmen);
R
,
M
and
CuA
stems not separated basally;
CuP
distinct. Wings membranous,
Sc
in length as half as wing;
RA
with 5-6 not incrassated anterior veins;
RS
with 6 veins;
M
long and simple;
CuA
pectinate with 3 complete (reaching to wing margin) veins; behind
CuA
a long and simple vein, probably corresponding to 1st plical vein
sensu
Rehn (1951)
or
CuP
[probably
CuP
+
A1 sensu
Bey-Bienko (1950)
]; next long and simple vein probably corresponds to 3rd plical vein
sensu
Rehn (1951)
; between 1st and 3rd plical veins located shorter vein not reaching wing margin, probably corresponds to 2nd plical vein
sensu
Rehn (1951)
; anal fan consisting of 11 veins reaching margin of wing; 2 possibly jugal veins situated behind anal fan. Fore tibiae not thickened distally. Anterior margin of fore femora of armed
type
A, with 25-27 bimarginally serrated spines and 1 not bimarginally serrated apical one. Tibial spines well developed. Structure of hind tarsi: metatarsus shorter than other tarsal segments combined, with euplantula more than one half segment length; euplantulae of 2nd-4th segments large; tarsal spines completely absent, replaced with irregularly placed bristles; claws symmetrical and simple; arolium longer than half of claw length. Abdomen without visible glandular specializations. Anal plate (tergite X) trapezoidal in shape, caudal margin rounded, without medial incision (
Figs 61, 62
). Cerci with distinct segments. Paraprocts of blaberid-type (
Fig. 62
,
par.
). Hypandrium asymmetrical and transverse, caudally rounded; left stylus cylindrical, right stylus broken off (
Fig. 63
).
Genitalia
(
Figs 64-70
): Right phallomere (R+N): sclerite R1T with caudal part wide (
Figs 64, 65
,
c.p.R1T
); bristles absent; R2 long and sinuate; R3 crescentic, closely associated with R1T; R4 absent; R5 replaced with unsclerotized lobe. Cranial and above right phallomere situated small rounded sclerite of unclear homology (
Fig. 64
,
r.scl.
). Sclerite L2D (L1) not divided into basal and apical parts (
Fig. 66
), slightly bent cranially, with “bent outgrowth” at caudal end (
Figs 67, 68
,
b.o.
); “apical sclerite” absent, membranous lobe surrounding caudal part of L2D without discernible bristles or sclerites (
Figs 67, 68
). Sclerite L3 (L2d) with distinct basal subsclerite (
Figs 69, 70
,
b.L3
), “folded structure” and bristles (
Figs 69, 70
,
f.s.
); groove
hge
present. Sclerite L4U (L3d) weakly sclerotized, triangular in shape.
Females:
unknown.
Measurements
(in mm): Head length 2.9, head width 2.9; pronotum length 3.8, pronotum width 5.5; tegmen length 15.5, tegmen width 5.0.
Comparison:
Gurneya rothi
sp. nov.
shares the peculiar structure of armament of the anterior margin of the fore femora (
i.e.
, bimarginally serrated spines) with
G
.
obliqua
(
Walker, 1869
)
, the
type
and only known species of the genus, and
Alphelixia sicca
(
Walker, 1869
)
. The presence of bimarginally serrated spines readily differentiates these species from all other known epilamprines. The new species differs from
G. obliqua
in less expressed dark stripes on the pronotum (compare
Fig. 60
and figs 33, 35 in
Roth, 1974
), the presence of apical spine on the anterior margin of fore femora and the truncated caudal margin of anal plate (compare
Fig. 61
and fig.
38 in
Roth, 1974
).
Gurneya rothi