תוכן הענינים: :: Library Catalog

שמור ב:

מידע ביבליוגרפי
מחבר ראשי:	Kluge, Nikita J.
פורמט:	Recurso digital
שפה:
יצא לאור:	Zenodo 2025
נושאים:	Biodiversity Taxonomy Animalia Arthropoda Insecta Ephemeroptera Baetidae Procloeon Procloeon diplofolium
גישה מקוונת:	https://doi.org/10.5281/zenodo.17320699
תגים:	הוספת תג אין תגיות, היה/י הראשונ/ה לתייג את הרשומה!

תוכן הענינים:

Procloeon (Psammonella) diplofolium sp. nov.(Figs 27–28, 46–52, 110–135)Material examined. Holotype: L-S &female; {specimen [XIII] (6)B 2015}, THAILAND, prov. Mae-Hong-Son, Pai, river Pai upstream Tan Jet Ton village, 9.II.2015, coll. N. Kluge & L. Sheyko. Paratypes: the same locality and collectors, 5–14.II.2015: 2 L-S &female;, 30 larvae.Etymology. The species name diplofolium refers to double tergalii of some anterior pairs (Figs 46–49). While this character occurs in many other representatives of the genus Procloeon, it is unknown for other representatives of the subgenus Psammonella.Larva. CUTICULAR COLORATION. Head mostly colorless, only frons dorsad of antennae bases and occipit colored with light ochre (Fig. 111). Pronotum and mesonotum ochre, with small, contrasting darker brown maculae (Fig. 112). Metanotum and thoracic pleura with brown and colorless areas (Fig. 113). Legs mostly colorless (Figs 114–116). Abdominal terga with darker brown and lighter ochre areas; terga I, III, V–VI and IX darker than others (Fig. 110). Sterna colorless. Caudalii light ochre, with darker brownish margin of each 4th segment; swimming setae with light bases, darker brownish middle parts and colorless tips (Fig. 110).HYPODERMAL COLORATION. Abdominal terga with transverse reddish band at middle part of posterior margin; these or that abdominal terga with or without other unpaired and/or paired reddish markings (Fig. 134).SHAPE AND SETATION. Labrum widened distally, with distal margin sharply concave (Fig. 117). Mandibles with incisor and kinetodontium separated up to base (Figs 121–122). Maxilla modified as characteristic for Psammonella (Figs 27–28, 120). Maxillary palp with 3rd (terminal) segment as long as 2nd segment (Fig. 120). Hypopharynx with 3 apices (Fig. 118). Glossae short and wide, rounded apically; paraglossae longer and narrower than glossae, arched, parallel-sided (Fig. 119). 3rd (distal) segment of labial palp with inner angle stretched and distal margin concave (Fig. 119).Hind protoptera completely absent (Fig. 113). Legs with thin, rather long, pointed, stout, two-channel setae located on inner sides of femur, tibia and tarsus; no stout setae on outer side of leg (Fig. 131). Claws long and slender, without denticles (Figs 114–116.Abdominal segments II–VII with pair of posterolateral denticles; segments VII–IX with several denticles on lateral sides. Posterior margin of abdominal tergum I with small, irregular denticles; that of terga II–X with pointed denticles alternated with small denticles or blunt protuberances (Fig. 123, 128). Posterior margins of abdominal sterna I–III without denticles; that of sterna IV–IX with pointed denticles shorter than denticles on terga (Fig. 124). Paraprocts with long, pointed denticles (Fig. 125). Sterna II–VIII with one or few colorless, bifurcate setae sublaterally (as on Fig. 182).Tergalii I–IV with small dorsal lamella; tergalius VII stretched posteriorly, of usual Procloeon - type (Figs 46– 52).In middle part of cerci and paracercus, denticles on posterior margin of each 4th segment equally enlarged on dorsal and ventral sides (Figs 126–127). In distal part of cercus, greatly enlarged denticle on lateral side of each cercomere (peculiar for Procloeon) widened at midlength and slightly longer than cercomere (Figs 129–130).POSE OF SUBIMAGINAL GONOSTYLI UNDER LARVAL CUTICLE of « Cloeon - type » (as in Fig. 94).Subimago (based on reared females and males extracted from larva). CUTICULAR COLORATION. Subimaginal cuticle mostly colorless; mesonotum with pair of brown stripes along lateroparapsidal sutures (Fig. 132). Wing membrane entirely colorless, microtrichia ochre.HYPODERMAL COLORATION. Body ochre; all or some abdominal terga with more or less expressed transverse reddish band at middle part of posterior margin, sometimes with other reddish markings (Figs 134–135). Legs uniformly ochre (Fig. 133).TEXTURE. In both sexes, on all leg pairs, all tarsomeres are covered with pointed microlepides (as in Figs 98–99) (Kluge 2022).Imago. Unknown.Eggs. Unknown. Eggs extracted from female subimagines are undeveloped.Comparison. Larva of the new species Procloeon (Psammonella) diplofolium sp. nov. differs from all other known Psammonella by presence of dorsal lamella on tergalii of some pairs and by rounded glossae.

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