Medauromorpha, Bresseel & Constant, 1893
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publication ID |
https://doi.org/ 10.5281/zenodo.13272258 |
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persistent identifier |
https://treatment.plazi.org/id/03A0AF4C-FFAC-422A-6555-D8C5ECE5F7BC |
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treatment provided by |
Felipe |
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scientific name |
Medauromorpha |
| status |
gen. nov. |
Genus Medauromorpha View in CoL gen. nov.
urn:lsid:zoobank.org:act:5A28DD39-DE1A-4FE9-BD68-F74A14FBAF4D
Type species: Cuniculina regina Brunner von Wattenwyl, 1907 by present designation.
ETYMOLOGY. The genus name is formed by the combination of “ Medaur -”, referring to the genera Medaura Stål, 1875 and Medauroidea Zompro, 2000 , and “- morpha ”, derived from the Ancient Greek “ ΜΟΡφή ” meaning shape, appearance. The name refers to the close relation of the new genus with Medaura and Medauroidea .
It is feminine in gender.
DESCRIPTION.
MALE AND FEMALE.
Measurements: length of body [in mm]: ♂♂: 78.3–101.6; ♀♀: 99.3–155.2.
Body: elongated, slender and stick shaped. Males have quite a constant colour, mainly brown to black and with pale or black streaks according to the species. Females range more in colour and are mainly brown, often with black markings scattered over body and legs. Some specimens with paler streaks or completely white patches. Posterior part of prosternum and/or basal part of mesosternum with a dark longitudinal line or dot.
Head: longer than wide, slightly tapering posteriorly and granulose. Vertex slightly elongated, slightly raised and medially split by a median line. Dorsal portion of head flattened with a pair of spines between the eyes. Eyes circular and strongly projecting hemispherically. Antennae reaching less than halfway along profemora in females; in males, reaching more than halfway, up to apices of profemora. Scapus strongly flattened dorsoventrally with lateral margins expanded and rounded. Pedicellus shorter, narrower and flattened.
Thorax: pronotum trapezoidal, widest subapically; shorter than head and sparsely granulose. Anterior margin concave and raised, followed by a shallow median longitudinal impression, which does not reach posterior margin. Central transverse impression not
5 reaching lateral margins of pronotum. Mesonotum cylindrical and elongated. Metanotum as metonotum.
Legs: strongly elongated and slender. Mesofemora of females with posterodorsal carina armed with at least one large lobe. Meso- and metatibiae with small saw-like teeth, more numerous towards the apex. Tarsi with basitarsi as long or longer than following tarsomeres combined and distinctly setose. Arolium and claw relatively small in relation to body size.
Abdomen: median segment very short and transverse in females; slightly longer than wide in males. Abdominal segments gradually increasing in length to tergum IV or V. Abdominal terga III-VIII with a small lobe antero-laterally covering the spiracles. Spiracles only visible in ventral aspect. Females with tergum X tectiform, with a raised mediolongitudinal carina and facing obliquely downwards. Posterolateral margins of tergum X slightly rounded. Epiproct short with median longitudinal carina. Sternum VII sometimes with a distinct praeopercular organ. Subgenital plate elongated, laterally compressed, not reaching apex of abdomen, smooth and with apex rounded. Cerci small, laterally compressed, not reaching apex of tergum X. Tergum X of males with a median longitudinal carina, notched apically and conspicuously setose. Inner portion of semi-tergite swollen apically and armed with several short denticles; posterolateral angles rounded. Poculum rounded; posterior half with a distinct mediolongitudinal carina; apex narrowing and blunt. Cerci short, laterally flattened and setose, not reaching apex of tergum X with apex rounded. Vomer well developed, visible as an elongated or triangular sclerite with acute, darkened apex.
EGG.
Capsule light to dark brown, strongly elongated, gently curved in lateral aspect and up to 16 mm long. Slightly convex ventrally and slightly concave dorsally. Broadest centrally and slightly narrowing towards anterior and posterior ends. Capsule surface with an irregular network of smooth, raised ridges which fuse around the micropylar plate. ridges with some minute mushroom and/or hook-like structures. Polar area very distinct, shaped like a “pseudo-operculum”, tube-shaped or cylindrical with apex excavated. Operculum tube-shaped with a raised, crown-like opercular rim. Micropylar plate small, round to lanceolate, positioned close to polar area and notched posteromedially; surface smooth. Micropylar cup black and distinct, followed by an elongated median line.
DIFFERENTIATION.
Differing from all other known genera of Medaurini Hennemann & Conle, 2008 by the following combination of characters:
1) Elongated and stick-like, light to dark brown with sometimes paler markings or clear white areas.
2) Head with two spines, granulose and with vertex slightly raised and elongated posteriorly.
3) Posterior part of prosternum and/or basal part of mesosternum with a dark longitudinal line or dot.
4) Mesofemora with at least one pronounced lobe on the posterodorsal carina in females; often furnished with several very large, irregularly foliaceous lobes
5) Abdominal terga III-VIII with a small lobe antero-laterally covering the spiracles. Spiracles only visible in ventral aspect.
6) Subgenital plate in females plate elongated, laterally compressed, not projecting beyond apex of abdomen. Surface smooth, apex bluntly rounded.
7) Egg capsule very elongated, cylindrical and gently curved in lateral aspect. Polar area shaped like a “pseudo-operculum”. Opercular rim pronounced.
6 BIOLOGY. All species were collected in tropical evergreen rainforest, at low to medium altitude (50-1000 m). The specimens were observed in lower vegetation, never higher than 1.5 m off the ground, and seemed to feed on different plant species, hence are believed to be rather polyphagous. In captivity, eggs are sometimes inserted into the fine mesh of the cages and at least Fagus sylvatica L. ( Fagaceae ), Rubus spp. ( Rosaceae ), Rosa spp. ( Rosaceae ) are well accepted as alternative food-plants. Breeding of all three known species has proven fairly easy.
DISTRIBUTION. Currently known from different localities in northern Vietnam and from Guangxi Province, southern China ( Fig. 1 View Fig ).
Species included
1. Medauromorpha baviensis sp. nov. [ Vietnam: Ba Vi N.P.]
2. Medauromorpha foedata (Brunner von Wattenwyl, 1907) comb. nov. [ Vietnam: Tam Dao N.P., Cuc Phuong N.P., Tay Yen Tu N.R., Ngo Luong N.R., Ba Vi N.P., Mt. Mauson] 3. Medauromorpha regina (Brunner von Wattenwyl, 1907) comb. nov. [ Vietnam: Ba Be N.P., Cham Chu N.P., tay Yen Tu N.R., Me Linh B.S., Than Moi, Mt. Mauson, Na Hang; China: Longzhou County, Longgang]
= Baculum spinicornum Chen & He, 2000 syn. nov.
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