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Aphodius (Sinaphodius) chitwanensis P.Schoolmeesters & R.Van den Heuvel 1999.

1999 Aphodius (Sinaphodius) chitwanensis P.Schoolmeesters & R.Van den Heuvel, Phegea 27(4):141-143
  • Holoype locality: Nepal, Royal Chitwan N. P., Island resort, 17-18.11.1998, leg. P. Schoolmeesters
  • Holoype deposit : Schoolmeesters collection, Herent, Belgium.

    Female:
    Length: 5.1-5.3 mm.
    Brown, head yellow translucent with longitudinal black spot in the middle, anterior angles of pronotum yellowish, legs and elytral apex yellow. Antennal club black. Pubescent, with head and pronotal disk glabrous, elytra with recumbent rather long hairs.
    Head, semicircular, clypeus truncate, frontal suture only indicated, between the anterior margin of the eyes. Punctuation of the head simple, sparse. Genae slightly produced beyond the eyes and rounded.
    Pronotum transverse, broader as the elytral base. Anterior angles rounded, posterior angles widely truncate, deeply emarginate, posterior margin slightly sinuate. Anterior and posterior margin not bordered. Lateral sides with rather thick border and densely fimbriate. Pronotal punctures sparser and smaller anteriorly and on disk. Scutellum small, triangular, not parallel on basis, punctate.
    Elytra apically truncate, pygidium exposed. Inner and outer margin of elytral intervals not crenate by strial punctures. Elytral intervals apically disconnect.Humeral tubers of elytra denticulate. Epipleura separated from elytra by a deep groove and by a distinct keel.
    Anterior tibiae with 3 teeth on outer side, from tooth towards base crenulate, apical spur of anterior tibiae long, acuminate and curved outwards. Upper terminal spur of hind tibia as long as metatarsus, the latter longer as the next three segments combined, nearly as long as the remaining segments combined. Apical bristles of hind tibiae unequal in length.
    Abdominal sternites and pygidium with long setae.
    Epipharyngeal characters not studied.

    Male unknown.

    This new species is probably closely related to Aphodius (Sinaphodius) yunnanus, with which it can be confused. Differences between yunnanus and chitwanensis are:

     

    A. yunnanus

    A. chitwanensis

    Clypeus

    more convex

    more flat

    Head

    distinctly pubescent

    glabrous

    Genae

    more pronounced

    rounded

    Pronotum

    -setae longer, denser, more or less, erect and bent backwards

    -setae recumbent, less dense

     

    -anterior angles sharp

    -anterior angles less sharp

     

    -posterior angles deeper truncate

    -posterior angles less truncate

     

    -punctuation great, dense, coarse nearly adjacent

    -punctuation much finer; more sparse

    Elytra

    -pubescence longer and denser more erect lighter (yellowish)

    -pubescence less erect, darker (brownish)

     

    -punctuation greater, less dense

    -punctuation smaller, less distinct between the microreticulation, more dense

     

    -shiny

    -less shiny (nearly mat)

     

    -striae distinctly punctate

    -striae hardly punctate

     

    -intervals more or less convex

    -intervals flat

     

    -punctuation of the intervals more or, less in three rows, more distinct and greater

    -punctuation of the intervals smaller, indistinct lost in the microreticulation

    remark: the shadow in the middle is due to lack of light when the photograps were taken, the dark spot on the head is not part of this shadow.
    1. Habitat, 109 Kb
    2. Ventral view, 189 Kb
    3. Ventral view pygidium, 186 Kb
    4. Ventral view head and protibia, 194 Kb
    5. Dorsal view protibia, 88 Kb
    6. Middle and posterior tibiae, 65 Kb
    7. Dorsal view pygidium, 128 Kb
    8. Elytra apical margin, 359 Kb
    9. Head, 196 Kb
    10. Head, pronotum, 145 Kb

    Paul Schoolmeesters
    Langeveldstraat, 23
    B3020 Herent
    Belgium
    INTERNET : schoolp@skynet.be
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