Zeromastax aris, Porras, Mitzy F., 2010

Porras, Mitzy F., 2010, The monkey grasshoppers, genus Zeromastax Porras (Eumastacinae, Eumastacidae, Orthoptera): two new species from the Neotropics, Zootaxa 2669, pp. 34-44 : 35-43

Zeromastax aris n. sp.

( Figs. 1–3 )

Material studied. Holotype 3: COLOMBIA. Antioquia. Guatapé. El Peñol 75°11’08.88”W 6°12’ 48.40”N 1944 m. Col: J. M. Carvajalino and M. F. Porras. 14–Aug–2009. MFP n° 130. Deposited in Instituto de Ciencias Naturales [ ICN –46094] at Universidad Nacional de Colombia, Bogotá.

Paratypes: Two 3 ( MFP n°131, MFP n° 132) and aƤ ( MFP n° 133) COLOMBIA. Antioquia. Guatapé. El Peñol 75°11’08.88’’W 6°12’48.40’’N. 1944 m. Col: J. M. Carvajalino y M. F. Porras. 14–Aug–2009. Deposited in Instituto de Ciencias Naturales [ ICN –46095,46096, 46097] at Universidad Nacional de Colombia, Bogotá.

Etymology. The species is dedicated to Aristóbulo López Ávila.

Diagnosis. Pronotum well developed carinae, sulcated oval subepiphallic sclerite in vertical position.

Description. Measurements in Table 1 .

Male. Head. Antennae brown with 10 antenomeres, metallic green and black in life. Scape and pedicel yellow. Eyes globular, brown. Integument of vertex rough, with seven pairs of tubercles. Fatigium edges raised ( Fig. 1 A), edges gather to carinulas. Front yellow, metallic green in life. Integument of genae smooth ( Fig. 1 A), post-ocular area black.

Thorax. Pronotum. Anterior and posterior margins of pronotum heart-shaped, in dorsal view ( Fig. 1 B). Well developed carinae, sulcated. Integument smooth. Two black fringes from anterior to posterior part. Integument predominantly green in life. Upper edge of anterior margin forms an obtuse angle. The bottom edge forms a curve in metazona; posterior edge has an angle of 90°. Lateral lobes yellow. Micropterous. Tegmina with yellow edges and brown central area. Spine between carinula and inner carina on hind femur.

Abdomen. Black midline until the sixth tergite, seventh and eighth red, other tergites are black. Yellow abdominal sternites. Thick cerci, sharp and curve ends directed toward the center ( Fig. 2 A). Subgenital plate in lateral view rounded, upper margin in axial view straight ( Fig. 2 B). First tergite black, second to sixth tergite green, seventh and eight tergite red. Metallic blue subgenital plate in life.

Phallic complex. Ectophallic sclerites robust, acute in lateral view. Epillus round, lateral edge bent downward ( Figs. 2 C, 3B). Rounded end of lophae, bent downward in axial view. Subepiphallic sclerite curved, in vertical position ( Fig. 2 C, thick line), upper edge in contact with epiphallus. Endophallic sclerite in dorsal view oblong, anterior part rounded; thin arms, acute end toward to center. Sclerite shape is similar to a sickle ( Figs. 2 D, 3C).

Holotype 3: COLOMBIA. Caldas. Norcasia, Mouth of Manso River in La Miel River. 74º 46’ 25” W 5º 40’ 32” N. 220m. J. M. Carvajalino. 5–Jun–2009. MFP n°143. Deposited in Instituto de Ciencias Naturales [ ICN – 46098] at Universidad Nacional de Colombia, Bogotá.

Etymology. The species is dedicated to Aldo Malavasi

Diagnosis. Spine on seventh antennal segment. Hind tarsus with spines in both edges. Hind tarsus with spine on both edges. Phallic complex: epiphallus, has “M” shape, subepiphallic sclerite 2x bigger than epiphallus.

Male (mm) ±0.005 Length from fastigium to end of tegmina 6.2

Length from fastigium to end of abdomen 11.15

Length of prozona 1.5

Length of metazona 0.6

Length of pronotum 2.1

Width of pronotum 1.95

Maximum width of hind femur 1.65

Length of hind femur 9.6

Length of tegmina 2.15

Smaller diameter of eye 1.25

Greater diameter of eye 1.55

Interocular distance 0.15

Width of head at genae 1.95

Description. Male ( Table 2) Head. Antennae black with 10 antenomeres. Scape and pedicel yellow. Eyes globular, black. Fastigium edges raised ( Fig. 4 A). Clypeal triangle of front brown. Front yellow. Integument of genae and vertex rough, brown Rough, brown ( Fig. 4 A). Six pairs of blue tubercles.

Thorax. Pronotum. Straight anterior margin, posterior margin heart-shaped. Well developed carinae on metazona. Pronotal zone divided by a sulcus (sulcated). Two diagonal sulcis which form a “V” between prozona and metazona in dorsal view. Integument of metazona rough ( Fig. 4 B). Anterior edge of lateral lobe forms an obtuse angle. Posterior edge forms an angle of 90°. Green dorsally and yellow laterally. Micropterous. Tegmina with green veins and black membranes ( Fig. 4 B). Spine between carinula and inner carina on hind tibia.

Abdomen. Green tergites, yellow sternites. Subgenital plate with upper edge hearted in axial view, bottom edge rounded. Cerci straight ( Figs. 5 A, 5B).

Phallic complex. Long, thin ectophallus; acute end ( Fig. 5 C). Thick epiphallus, has “M” shape ( Fig. 5 D). Lophae descend forming a curve; subsequently are projected outward, square ends in dorsal view ( Fig. 5 E). Subepiphallic sclerite in Fig. 5 F. Long, thin endophallus twice bigger than epiphallus ( Fig. 5 G).

Figures

FIGURE 1. Zeromastax aris n. sp. 3. A. Habitus. B. Pronotum and tegmina in dorsal view. Scale bar, 1 mm.

FIGURE 2. Zeromastax aris n. sp. 3. A. Subgenital plate in lateral view. B. Subgenital plate in axial view. C. Phallic complex, subepiphallic sclerite in thick line (axial view). D. Phallic complex, without subepiphallic sclerite in lateral view. Scale bar, 1 mm.

FIGURE 3. Zeromastax aris n. sp. 3. A. Epiphallus in dorsal view. B. Epiphallus in axial view. C. Endophallus in lateral view. Scale bar, 1 mm.

FIGURE 4. Zeromastax malavasei n. sp. 3. A. Habitus. B. Pronotum and tegmina in dorsal view. Scale bar, 1 mm.

FIGURE 5. Zeromastax malavasei n. sp. 3. A. Subgenital plate in lateral view. B. Subgenital plate in axial view. C. Ectophallus in lateral view. D. Epiphallus in dorsal view. E. Epiphallus in lateral view. F. Subepiphallic sclerite in ventral view. G. Endophallus in lateral view. Scale bar, 1 mm.

Tables

TABLE 1. Morphometric measurements of Zeromastax aris n. sp. The measurements were based on three males and a female.

	Male (mm) ±0.005	Female (mm)±0.005
Length from fastigium to end of tegmina	7.3	7.75
Length from fastigium to end of abdomen	13.25	19.3
Length of prozona	0.66	0.75
Length of metazona	0.45	0.55
Length of pronotum	1.11	1.3
Width of pronotum	1.05	2.05
Maximum width of hind femur	1.95	2
Length of hind femur	10.45	11.45
Length of tegmina	2.95	2.55
Smaller diameter of eye	1.65	1.65
Greater diameter of eye	1	1
Interocular distance	0,35	0.45
Width of head at genae	1.95	2.05
Zeromastax malavasei n. sp. (Figs. 4–5)