Sadyattes matipuno, Hennemann, 2025

Hennemann, Frank H., 2025, A review of Sadyattes Stål, 1875, with the descriptions of six new species from the Philippines (Phasmatodea: Platycraninae: Stephanacridini), Zootaxa 5610 (1), pp. 1-72 : 46-51

publication ID	https://doi.org/10.11646/zootaxa.5610.1.1
publication LSID	lsid:zoobank.org:pub:EA0155F6-8422-43F3-A272-938BD4C1CE0F
persistent identifier	https://treatment.plazi.org/id/038187C1-FF92-5D1E-FF52-FEF7A2B3FECE
treatment provided by	Plazi
scientific name	Sadyattes matipuno
status	sp. nov.

Treatment

Sadyattes matipuno View in CoL sp. nov.

ZooBank: https://zoobank.org/NomenclaturalActs/ ABD9E358-C096-4763-B524-D33A0739DBF7

( Figs. 14–15 View FIGURE 14 View FIGURE 15 , 21I–J View FIGURE 21 , 22B View FIGURE 22 )

HT, ♀: Philippinen, O-Luzon, Sierra Madre, Provinz Aurora, Dingalan , local collector VII.2011 [ RBINS, ex coll. FH No.

1266-1]. PT, egg (ex ovipositor of HT): same data [ RBINS, ex coll. coll. FH No. 1266-E]. PT, ♂: Philippinen, O-Luzon Id., Provinz Nueva Ecija, Aurora N.P., Gabaldon Munip., Mingan Mts. , local collector 2013

[coll. FH, No. 1266-2].

Differentiation. The large ♀ of this new species is readily separated from all other Philippine members of the genus by combining a long and lanceolate subgenital plate with remarkably stocky limbs, that have the femora strongly incrassated ( Fig. 14 View FIGURE 14 ). The stocky limbs and long median segment, which is almost equal in length to the metanotum is shared with leytensis , but this species is much larger and slenderer and has the lateral margins of the mesonotum and abdominal terga not deflexed. The lanceolate subgenital plate ( Figs. 14G–I View FIGURE 14 ) is shared with the ♀♀ of S. maganda sp. nov. from Mindoro and S. panyense sp. nov. from the island of Panay, but both species are notably smaller, slenderer and geographically separated from matipuno sp. nov. From those two species, these ♀♀ more closely resemble maganda , but in addition to the abovementioned features they clearly differ by the even more incrassate meso- and metafemora, which however have the ventral dentations of the two outer ventral carinae less prominent and rather spinose ( Fig. 14F View FIGURE 14 ; distinctly serrate and black in maganda ), and relatively longer median segment. The ♂ ( Fig. 15 View FIGURE 15 ) most closely resembles that of the Luzonian S. fallax (Brunner v. Wattenwyl, 1907) from which however it is readily distinguishable by the notably slenderer overall shape, more delicate limbs, distinctively trapezoidal anal segment ( Fig. 15G View FIGURE 15 ), that strongly widens towards the posterior and has the outer angles somewhat protruded and triangular (narrowed posteriorly in fallax ), less globose head ( Fig. 15D View FIGURE 15 ), which lacks the black postocular streak seen in fallax , ochraceous mesonotum that has irregularly shaped black lateral streaks, black longitudinal dorsal streak in the posterior half of the mesopleurae ( Figs. 15D–E View FIGURE 15 ), longer alae that reach as far back as to the posterior margin of abdominal segment III and the lack of definite annulae of the meso- and metatibiae. The fairly unusual egg of this new species is readily separated from all other known eggs of congenerics by the almost uniformly sub-spherical chorion wholly smooth chorion surface and large, knob-like capitulum ( Figs. 22I–J View FIGURE 22 ).

Etymology. The name matipuno (filipino = robust, hardy, muscular) emphasizes on the robust and stocky habitus and strong limbs of the ♀ of this large and eye-catching new species. Masculine.

Description. The colouration is described upon colour photos of a live ♀ taken by Albert Kang ( Malaysia) at Real, Quezon, Luzon ( Fig. 22B View FIGURE 22 ).

♀ ( Fig. 14 View FIGURE 14 ). Large (body length incl. subgenital plate 185.0 mm), form very stocky for the genus, with strong legs that have the meso- and metafemora prominently incrassate, and with a long, lanceolate subgenital plate that considerably extends beyond the tip of the abdomen. The holotype is discoloured due to a provisional storage in ethanol, being plain yellowish ochre with the mesonotum and metanotum as well as abdominal segment II with a dull orange hue. Colour of the life insects unevenly olive to mid green and partly with some buffy portions. Some off-white spots along lateral margins of mesonotum and the meso- and metapleurae with irregular dark brown markings. Head including eyes pale green, the genae with a faint washed greyish dark green postocular streak. Pronotum with a pair of closely spaced, sub-parallel, slender black medio-longitudinal lines; mesonotum with a pair of sepia brown markings that consist of ana aggregations of small speckles. Abdominal sterna mostly greyish with some white and faintly flecked with brown. Legs mid green; the bases of all femora dark red to purple and the meso- and metafemora and tibiae each with three faint, washed greyish dark green annulae.All teeth of the legs tipped with black. The antennae green dorsally and gradually becoming dark grey towards the tip and mostly black ventrally.

Head ( Figs. 14D–E View FIGURE 14 ): Sub-globose, 1.36x longer than wide and broadest just behind the eyes; vertex convex with a very shallow impression anteriorly, the coronal line and lateral furrow just very weakly indented. Eyes rather small, moderately projecting and their diameter corresponding to 0.6x length of gena.Antennae reaching to posterior margin of mesothorax; scapus compressed, roundly rectangular and about 1.6x longer than wide; pedicellus much shorter, round in cross-section and barrel-shaped.

Thorax: Pronotum shorter and considerably narrower than head, almost rectangular in outline with the lateral margins very gently concave, 1.6x longer than wide. Anterior margin somewhat inflated medially and followed by a deep, slightly arched transverse furrow that laterally terminates in a distinct pit some distance off the outer angle of notum; median line indented of entire length and transverse median sulcus impressed, almost straight and fairly short ( Fig. 14E View FIGURE 14 ). Mesothorax fairly short and only 4.5x longer than prothorax, distinctly constricted in anterior portion, somewhat inflated pre-medially and slightly widened at posterior margin. Mesonotum with a very fine medio-longitudinal line that is only clearly visible in the narrowed anterior portion but soon almost vanishes towards middle of segment; the anterior margin with a low medially notched and curved transverse carina. Metanotum very weakly tectate medio-longitudinally, 2x longer than wide, constricted medially and less than half the length of mesonotum. Meso- and metapleurae with an obtuse longitudinal carina close to upper margin. Meso- and metasternum with a prominent but obtuse medio-longitudinal keel.

Abdomen: Median segment about 0.65x length of metanotum, sub-rectangular and only 1.2x longer than wide. Segments II–VII sub-uniform in width with II–IV slightly increasing and V–VII slightly decreasing in diameter. II–IV increasing in length, V as long as IV and VI–VII decreasing in length; V about 1.6x longer than wide and VII about as long but narrower than II. Sterna II and II with a distinct medio-longitudinal carina, which is only discernible in the very anterior portion on IV-VII. Praeopercular organ formed by a verrucose posteromedian swelling on sternum VII and surrounded by an area of minute, irregularly longitudinal directed rugulae ( Fig. 14G View FIGURE 14 ). Tergum VIII constricted medially and strongly convex longitudinally with posterior margin slightly wider than anterior margin and roughly half as long as VII. IX sub-quadrate in dorsal aspect and some two-thirds as long as VIII. Anal segment notably longer than IX and slightly gradually narrowing towards a rounded and weakly bi-lobate posterior margin that has a small median indention; dorsal surface with a fine medio-longitudinal carina and lateral margins with a rather shallow concave emargination posteriorly ( Fig. 14H View FIGURE 14 ). Epiproct small, distinctly transverse and just weakly projecting under anal segment ( Fig. 14H View FIGURE 14 ). Cerci conical and slightly projecting over anal segment. Gonapophyses VIII strong, up-curved and roughly reaching to posterior of anal segment, therefore fully concealed under it. Subgenital plate elongate, lanceolate with the elongated apical portion distinctly keeled medio-longitudinally, gradually narrowing towards a fairly pointed tip and projecting beyond abdomen by about the combined length of terminal three terga ( Figs. 14G–I View FIGURE 14 ); basal portion with a prominent pre-basal narrowing ( Fig. 14G View FIGURE 14 ) and a distinct arched carina along lateral surfaces.

Legs: Legs fairly short and very stocky for the genus, the meso and metafemora in particular very strong and distinctly incrassate in basal half with the two outer ventral margins expanded; all carinae to a variable degree dentate with the ventral dentations of mid and hind legs much more prominent than those of the dorsal carinae. Profemora longer than pro- and mesothorax combined, mesofemora scarcely longer than mesothorax, metafemora reaching somewhat beyond posterior margin of abdominal segment IV and metatibiae roughly reaching to posterior of VII. Posteroventral carina of profemora with about 25 teeth, the teeth of anterodorsal carina slightly less in number and comparatively somewhat lower but broader; posterodorsal carina only supplied with about 12–13 minute teeth. Two outer ventral carinae armed with prominent teeth, that are largest and most closely spaced in the incrassate basal half and gradually become smaller towards the apex with only the apical tooth somewhat enlarged; dorsal carinae only with minute and more widely spaced teeth; the medioventral carina distinctly raised and armed with 10–12 (mesofemora; Fig. 14F View FIGURE 14 ) or 13–15 (metafemora) fairly strong spines. Ventral teeth of meso- and metatibiae also notably more closely spaced and numerous than the comparatively smaller teeth of dorsal carinae. Meso- and metabasitarsi longer than following three tarsomeres combined with all four carinae denticulate, probasitarsus as long as remaining tarsomeres taken together except claw and only the anteroventral carina supplied with a few minute denticles.

Measurements of ♀ HT [mm]: Body (incl. subgenital plate) 185.0, body 170.0, pronotum 6.8, mesonotum 33.0, metanotum 14.0, median segment 8.5, profemora 44.0, mesofemora 34.8, metafemora 37.5, protibiae 48.0, mesotibiae 32.0, metatibiae 41.5, antennae 50.0.

♂ ( Fig.15 View FIGURE 15 ). Fairly large for the genus (body length 124.0 mm), form very slender, with distinctive black lateral markings on mesonotum and a trapezoidal anal segment that is strongly widening towards the posterior. General colour ochraceous with black markings on mesonotum and abdominal terga. Head dark yellow with the frons orangey ( Fig. 15E View FIGURE 15 ) and the genae with a faint, washed green postocular streak that vanishes some distance before posterior end of head capsule ( Fig. 15D View FIGURE 15 ); scapus and pedicellus greenish ochre, rest of antennae blackish brown. Pronotum olive. Mesonotum with lateral margins cream-coloured and with an irregularly shaped black lateral streak that starts narrow at the anterior and gradually becomes wider and finally disperses towards back of segment ( Figs. 15D–E View FIGURE 15 ). Tegmina and costal region of alae cream-coloured with all longitudinal veins dark brown and the anterior margin broadly light creamish; the anal fan transparent grey with brown veins. Abdominal terga II-VII dark brown anteriorly and posteriorly with two pairs of black spots, the second pair of which is much larger. Sterna with similar posterior black spots, II wholly green, III mostly green and IV with a green longitudinal median streak, V-VII ochre ( Fig. 15C View FIGURE 15 ). Profemora dark green basally ( Figs. 15D–E View FIGURE 15 ) and the rest orangey brown with slight greenish wash. Meso- and metafemora green with the apex somewhat darkened; all tibiae greenish ochre with three faint darker brown annulae.

Head ( Figs. 15D–E View FIGURE 15 ): Oval, about 1.2x longer than wide, broadest at the eyes and distinctly narrowing towards the posterior; vertex moderately convex with a notably indented coronal line and the lateral furrow only indented at posterior margin of head capsule; in front with a shallow triangular impression. Frons with a distinct, small Wshaped pit between bases of antennae. Eyes very large, projecting slightly more than hemispherically and their diameter corresponding to 0.75x length of gena. Antennae long and reaching slightly beyond posterior margin of abdominal segment III; scapus and pedicellus as in ♀.

Thorax: Pronotum basically as in ♀. Mesothorax very elongate and 7.2x longer than prothorax, uniform in diameter with only a slight widening at anterior margin and somewhat expanded posteriorly. Mesonotum with a very fine medio-longitudinal line but the transverse bulge at anterior margin more pronounced than in ♀ with median portion weakly bi-gibbose and indented medially. Meso- and metasternum with a prominent medio-longitudinal keel. Tegmina elongate with the basal half strongly narrowed and the apical half roundly angular; the central hum fairly well developed and obtusely conical.Alae projecting somewhat behind posterior margin of abdominal segment III.

Abdomen: Segments II–VII uniform, in diameter, II–IV slightly decreasing in length, V as long as IV and VI- VII decreasing in length with VII only two-thirds the length of V; VI and V 7x and VII only 5.5x longer than wide. Sterna II–VII all with a distinct and acute medio-longitudinal keel. Tergum VIII slightly constricted just behind anterior margin with posterior half gradually widening and posterior margin 1.3x wider than anterior margin; less than half as long as VII. IX rectangular, just scarcely narrower than posterior margin of VIII and about 1.25x longer than wide. Anal segment shorter than IX, distinctly trapezoidal in dorsal aspect ( Fig.15G View FIGURE 15 ), being widened towards the posterior with the posterolateral angles strongly expanded and roundly triangular, in dorsal aspect the posterior margin with a shallow triangular emargination; ventral surfaces densely set with minute denticles to form a pair of large thorn-pads ( Fig. 15H View FIGURE 15 ); these just slightly facing each other at an angle of about 120°. Vomer roundly triangular in outline with the base rather parallel-sided and the terminal hook strong, short and up-curved; lateral margins strongly inflated and ventral surface with a deep medio-longitudinal furrow ( Fig. 15H View FIGURE 15 ). Cerci fairly small, round in cross-section and the apex somewhat club-like and arched inwards; scarcely projecting over anal segment. Phallus digitiform with a narrow apex that project noticeably over left upper margin of poculum ( Figs. 15F–H View FIGURE 15 ). The poculum small, bowl-shaped with the medio-basal portion somewhat bulgy and protruded ( Fig. 15F View FIGURE 15 ) and the posterior margin rounded and just not reaching to posterior of tergum IX ( Fig. 15H View FIGURE 15 ).

Legs: Long, slender and with all carinae minutely but acutely dentate; the teeth on ventral carinae comparatively larger than those on dorsal carinae. Profemora considerably longer than head, pro- and mesothorax combined, mesofemora roughly equal in length to pro- and mesothorax combined, metafemora almost reaching abdominal segment V and metatibiae projecting beyond tip of abdomen by about the combined length of terminal four abdominal segments. Apical tooth on two outer ventral carinae of meso- and metafemora slightly enlarged; the medioventral carina distinct and armed with about 22–25 somewhat unevenly spaced but fairly distinct spines. Tarsi all elongate, meso- and metabasitarsi almost as long as remaining joints excluding claw taken together and with the three ventral carinae minutely denticulated; probasitarsus unarmed and slightly longer than combined length of remaining tarsomeres.

Measurements of ♂ PT [mm]: Body 124.0, pronotum 3.8, mesonotum 27.2, metanotum 4.9, median segment 9.0, tegmina 6.1, alae 35.8, profemora 40.6, mesofemora 32.8, metafemora 41.5, protibiae 51.7, mesotibiae 34.0, metatibiae 45.0, antennae 73.0.

Egg ( Figs. 21 View FIGURE 21 I-J). Fairly large for the genus, chorion almost circular in lateral aspect, scarcely more than 1.2x longer than wide and oval in cross-section; the anterior portion slightly constricted and the anterior margin weakly inflated; polar-area rounded. Chorion surface even and almost wholly smooth with only a few very minute scattered granules; dull. Micropylar plate rather large and more than half as long as chorion; spearhead-shaped with the posterior portion fairly broad and gradually tapering towards a narrow tip; surface even and like chorion. Micropylar cup slightly displaced towards the anterior, small and bowl-shaped. Operculum slightly oval and flat with the outer margin somewhat raised and set with some small granules. Operculum large roundly knob-like, slightly constricted at base and with a central pit. Colour plain orangey mid brown with the anterior portion and area around micropylar plate washed dark brown. Outer margin of micropylar plate russet, micropylar cup black. Outer margin of operculum ochre, the capitulum russet and black at the base.

Measurements [mm]: Length incl. operculum 3.8, length 3.6, width 2.9, height 3.1, length of micropylar plate 2.1.

Comments. A photo of a live ♀ in situ taken by Albert Kang ( Singapore) shows the specimen to be domestic to a guava tree ( Psidium guayava , Myrtaceae ), which shows considerable feeeding damage. Thus, guava can be assumed to be one of the host-plants of this stunning species ( Fig. 22B View FIGURE 22 ).

Distribution. Philippines. Luzon: Province Aurora (Dingalan [RBINS – type locality]); Province Nueva Ecija (Gabaldon Municipality, Mingan Mountains [FH]); Province Quezon, Real [photographic record by A. Kang; Fig. 22B View FIGURE 22 ]).