New species and stages description of Ulmeritoides Traver, 1959 (Ephemeroptera: Leptophlebiidae) from Roraima State, Northern Brazil
Boldrini, R.
Lima, L. R. C.
Zootaxa
2017
4282
2
385
394
Gama-Neto & Hamada, 2014
Gama-Neto & Hamada
2014
[151,802,753,779]
Insecta
Leptophlebiidae
Ulmeritoides
Animalia
Ephemeroptera
5
390
Arthropoda
species
passorum
Diagnoses. Female imago:1) large body size (> 7.7 mm); 2) base of wings tinged with brown ( Fig. 14). Nymph: 1) medial denticle of anteromedial emargination of labrum much larger than others; 2) tusk on inner margin of maxillae hardly developed; 3) posterolateral projections present on abdominal segments II–IX; 4) lines of pectinate setae on ventral surface of tibia III forming one main line. Female imago.Length: body: 7.7–8.8 mm; forewings: 9.3–10.1mm; hind wings: 1.4–1.5 mm. General color light brown ( Figs. 14), darker in the living specimen ( Fig. 24). Head ( Fig. 14): Washed with black. Scape and pedicel brown; ocelli white, blackish basally. Thorax ( Fig. 14): Nota with anteronotal protuberance, medioscutum, submedioscutum, posterior scutal protuberance and scutellum brown; sterna brown.. Wings ( Figs. 15, 16, 16a): membrane of forewing hyaline, wing base brownish; main longitudinal and intercalaries veins dark brown, cross-veins pale yellow; one cross-vein basal to bulla. Membrane of hind wings ( Figs. 16, 16a) hyaline; longitudinal veins brownish, cross-veins pale yellow. Legs: Fore femur brown, fore tibia and fore tarsus dark brown Abdomen ( Fig. 14): when without eggs, light brown. Nymph.Length: Body: 6.9–7.3 mm. Nymphal exuviae: Tibia I: 1.2 mm; Tibia II: 1.2 mm; Tibia III: 1.4 mm. General coloration ( Fig. 17): Brown. Labrum ( Fig. 18): Subrectangular, broader than long; with one middle large and apically rounded denticle. Mandibles: Apical 1/2 of right mandible with inner and outer margin with fine long setae; inner and outer incisive, respectively, with two and three denticles. Left mandible ( Fig. 19) with outer margin with fine long setae; inner and outer incisive with three denticles. Maxilla ( Fig. 20, 20a): Tusk on inner apical margin hardly developed; one robust and fifteen subapical pectinate setae. Labium: Segment I with fine, simple setae scattered on inner margin; and outer margin with a row of setae increasing in length toward apex, and pectinate, long setae near apex. Segment II with fine, simple setae scattered on inner and outer margin; dorsally with a diagonal row of nine simple setae. Segment III with fine, simple setae scattered on inner and outer margin. Thorax: Light brown. Legs: Light brown. Foretibia and foretarsi brown. Leg I ( Fig. 21): Femur outer margin with long, pectinate setae; dorsal surface with long, pectinate setae near outer margin, and with spine-like setae and short, fine, pectinate setae near inner margin, and with spine like setae on midline. Tibia inner margin with a row of long, pectinate setae; dorsal and ventral surface with fine, long, simple setae near outer margin, and with short, fine pectinate setae near inner margin. Tarsi inner margin with a row of short, pectinate setae, and outer margin with fine, long simple setae. Claws with eight denticles increasing in length toward apex. FIGURES 14–17. Ulmeritoides passorum. 14 –16, female imago; 17, nymph. 14, lateral view; 15, forewing; 16, hind wing; 16a, hind wing (enlarged); 17, dorsal view. FIGURES 18–23. Ulmeritoides passorum, nymph. 18, labrum; 19, left mandible; 20, maxilla; 20a, detail of maxillary tusk; 21, foreleg; 22, mid leg; 23, hind leg. Leg II ( Fig. 22): Femur inner margin with a row of spine-like setae; outer margin with long pectinate setae and a row of spine-like setae; dorsal surface with spine-like setae on margins and at the midline. Tibia inner margin with a row of long, pectinate setae; dorsal and ventral surface with fine, long, simple setae near outer margin; dorsal surface with six spine-like setae near inner margin. Leg III ( Fig. 23): Femur outer and inner margin with a row of spine-like setae; dorsal surface with spine-like setae on margins and at the midline. Tibia inner and outer margins with a row spine-like setae; dorsal surface with a row of spine-like setae near inner margin; ventral surface with one row of pectinate setae. Abdomen: Terga brown. Posterolateral projections lighter, present on abdominal segments II-IX. Sterna brown. Gills gray, tracheae and fimbriae gray-violet. Caudal filaments light brown.
Distribution. Brazil: Roraima: Amajariand Pacaraima.
Materialexamined. Fourfemale imago, Brazil, Roraima, Amajari, Serra do Tepequém, Igarapé Cocal, 3°73’N/ 61°72’W, 01.xi.2014, Boldrini, R.coll ( UFRR). Twonymphs (one mature nymph), Brazil, Roraima, Amajari, Serra do Tepequém, Igarapé Cocal, 3°73’N/ 61°72’W, 01.xi.2014, Boldrini, R.coll ( UFRR). Oneimmature nymph, Brazil, Roraima, Amajari, Serra do Tepequém, Igarapé Cocal, 3°73’N/ 61°72’W, 18.xii.2014, Boldrini, R., Barroso, P.C.S.colls ( UFRR). Onemale imago, Brazil, Roraima, Amajari, Serra do Tepequém, Igarapé Cocal, 3°73’N/ 61°72’W, 18.xii.2014, Boldrini, Rcoll ( UFRR). Threemale imago, Brazil, Roraima, Pacaraima, Igarapé Samã, 4°28’30.8’’N/ 61°09’44.4’’W, 12.vi.2014, Boldrini, R.coll ( UFRR). Threemale imago, Brazil, Roraima, Pacaraima, Igarapé Samã, 4°28’30.8’’N/ 61°09’44.4’’W, 11.vi.2014, Boldrini, R.coll ( UFRR). Onemale imago (reared), Brazil, Roraima, Amajari, Serra do Tepequém, Igarapé Cocal, 3°73’N/ 61°72’W, 18.xii.2014, Boldrini, R.coll ( UFRR).
Comments.The adults of U. passorumhave similar characters to U. flavopedesadults. The males share the apex of the penis lobe rounded, and males and females share the forewing with costal and subcostal areas hyaline. Both species can be found in savanna areas in the RoraimaState, but the U. passorumspecimens can be found at altitudes>300 meters above the sea level, while U. flavopedescan be found in areas near 100 meters above the sea. The adults of U. passorumare easily recognized by the presence of brownish wing bases.
1950907468
2014-11-01
UFRR
Boldrini, R.
Brazil
Material
Serra do Tepequem
Four
8
393
1
Roraima
1950907467
2014-11-01
UFRR
Boldrini, R.
Brazil
Two
Igarape Cocal
Serra do Tepequem
8
393
1
Roraima
1950907370
2014-12-18
UFRR
Boldrini, R. & Barroso, P. C. S.
Brazil
One
Igarape Cocal
Serra do Tepequem
8
393
1
Roraima
1950907368
2014-12-18
UFRR
Boldrini, R
Brazil
One
Igarape Cocal
Serra do Tepequem
8
393
1
Roraima
1950907369
2014-06-12
UFRR
Boldrini, R.
Brazil
Three
4.475222
Igarape Sama
1
-61.162334
Pacaraima
8
393
1
Roraima
1950907366
2014-06-11
UFRR
Boldrini, R.
Brazil
Three
4.475222
Igarape Sama
1
-61.162334
Pacaraima
8
393
1
Roraima
1950907367
2014-12-18
UFRR
Boldrini, R.
Brazil
One
Igarape Cocal
Serra do Tepequem
8
393
1
Roraima