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 |
