Notophlebia jobi Sivaramakrishnan & Peters 1984

KLUGE, NIKITA J., 2014, New Oriental tribe Iscini, new non-dilatognathan species of Notophlebia Peters & Edmunds 1970 and independent origin of Dilatognathus-type mouth apparatus in Atalophlebiinae (Ephemeroptera: Leptophlebiidae), Zootaxa 3760 (4), pp. 522-538 : 533

Notophlebia jobi Sivaramakrishnan & Peters 1984

( Figs 39–54 )

= Nathanella indica: Peters & Edmunds 1970 (non Demoulin 1955)

= Notophlebia sp. n.: Sivaramakrishnan & Job 1981

Material. INDIA, state Karnataka: Udupi district, river Seethanadhi-hole near Seethanadhi , 30.I.2013, N. Kluge, L. Sheyko: 3 larvae ; boundary of Shimoga and Uttara Kanada districts, river Sirawati near Mavigundi , Jogg Falls , 4.XII. 2008. coll. M. Chertoprud: 4 larvae .

Discussion. Larva is adequately described by Sivaramakrishnan & Peters (1984). The following characters can be added. Mouth apparatus of « Dilatognathus - type », with highly modified labrum, mandibles, hypopharynx, maxillae and labium ( Kluge 2012). Apex of maxilla lacks apical flange, dentiseta and subapical row of pectinate setae [which are present in most other Atalophlebomaxillata ( Kluge 2012)]; instead of them, medio-apical angle of maxilla is produced to a long sclerotized apical tusk ( Sivaramakrishnan & Peters 1984: Fig. 15 ). Maxillary palp specialized as filtering, with 1 st segment shortened and thickened, with strengthened muscles—both flexor and extensor of 2 nd segment; 2 nd segment with a compact group of 4–6 long arched pointed stout seta near apex on lateral side ( Figs 46, 47 ; Sivaramakrishnan & Peters 1984: Fig. 15 ) (instead of one straight seta in N. ganeshi sp.n. — Fig. 7 ); 3 rd segment with only one kind of setae—very long stout pointed setae directed apically and forming nearly regular rows ( Figs 46–49 ). Labial palp has lost setae on 1 st and 2 nd segments and bears long pointed setae on 3 rd segment. Outer side of 3 rd segment with very long setae, which in proximal part of the segment form regular transverse rows; dorsal side also with long setae; between long setae of outer side and long setae of dorsal side, smaller setae are situated ( Figs 50, 51 ). Thorax wide; fore protoptera brought together ( Fig. 44 ). Fore tibia, beside dense pointed bipectinate stout setae on inner side and non-pectinate very stout setae on ventral (posterior) side [see Iscini (2)] ( Fig. 52p ) bears numerous very long slender pointed setae on dorsal (anterior) side ( Fig. 53a ); unlike N. ganeshi sp.n., dorsal side has no longitudinal row of stout elongate blunt setae [see Notophlebia (3)]. Dorsal (anterior) side of middle and hind tibia with a longitudinal row of stout elongate blunt setae ( Fig. 54a ) (as in N. ganeshi sp.n.). Claw with 2–4 denticles on proximal portion, 8 denticles in anterior row and 1 larger denticle apically-posteriorly. Posterior margins of abdominal terga with a regular row of pointed denticles alternated with enlarged setae ( Fig. 39 ); denticles become longer from tergum I to tergum IX, on posterior segments much larger than in N. ganeshi sp.n. Posterior margins of abdominal sterna without denticles. Tergalii with proximal-anal convexity, which is poorly expressed on tergalius I, gradually larger from tergalius I to tergalius VI and wellexpressed on small tergalius VI ( Figs 40–43 ). Male larval protopenes long, with gonopore on dorsal side and with gonoduct lined by cuticle ( Fig. 45 ).

Figures

FIGURES 31–45. 31–38, Notophlebia ganeshi sp. n.; 39–45, Notophlebia jobi. 31–34 and 40–43, tergalii of I, II, V and VI pairs (ventral lamella turned back); 35, claw; 36 and 44, pronotum and mesonotum of last instar larva; 37 and 45, posterior margin of abdominal sternum IX of mature male larva and protopenis, dorsal view (gonoducts lined by cuticle shown by interrupted lines); 38 and 39, posterior margin of larval abdominal tergum VI (37, 38, holotype).

FIGURES 46–51. Notophlebia jobi. 46–49, third segment of maxillary palp (46 and 48, ventral side; 47 and 49, dorsal side); 50–51, base of third segment of labial palp, dorsal side).

FIGURES 52–54. Notophlebia jobi. 52, distal part of larval fore tibia, posterior side; 53, the same, anterior side; 54, distal part of larval middle tibia, anterior side. Abbreviations: a, row of stout setae on anterior side; h, hair-like setae on outer side; p, row of stout setae on posterior side.

FIGURES 11–20. Notophlebia ganeshi sp. n. 11, male imaginal mesonotum; 12, male subimaginal exuviae of right half of mesonotum. 13–19, legs at the same magnification (arrows show ontogenesis): 13, fore leg of male imago; 14, fore leg of male larva (long hair-like setae not shown); 15–17, fore, middle and hind legs of male subimago; 18, hind leg of male imago; 19, fore leg of female imago. 20, tarsus of larval hind leg before molt to subimago (larval cuticle shown as optic section by black; subimaginal cuticle shown by integral lines; imaginal claw developing under subimaginal cuticle shown by interrupted lines). 21, posterior margin of abdominal sternum IX of mature female larva; 22, the same, of female imago (12–18, holotype). Abbreviations: LPs, lateroparapsidal suture; MNS, mesonotal suture; MPs, medioparapsidal suture.

FIGURES 4–10. Notophlebia ganeshi sp. n. Larval mouthparts (at the same magnification, except 6). 4, hypopharynx and superlinguae; 5, labrum (setae of distal transverse row not shown, their bases shown as dots and levels of their apices shown by dotted line); 6, apex of maxilla, ventral view; 7, maxilla, ventral view (apical and median setae not shown, their apices shown by dotted lines); 8, labium (dorsal view at left, ventral view at right); 9, apex of labial palp, dorsal view; 10, left mandible (5, 10, holotype).