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Onthophagus (Onthophagus) devagiriensis Schoolmeesters & Thomas, 2006

2006 Onthophagus (Onthophagus) devagiriensis Schoolmeesters & Thomas, Phegea 34(2):73-75
  • Holotype locality: India, Kerala, Wayanad District, Thirunelly, 900 m, 07.ix.2003, bison dung baited pittrap
  • Holotype deposit : Belgium, Brussels, Institut Royal des Sciences Naturelles de Belgique

    Male
    Head and pronotum shiny black with a slight greenish cast. Elytra yellow with black markings distributed as follows: basally a black spot on the third elytral interval, a black spot on the 5th, extending slightly onto the 6th, and a humeral black spot. Before the centre there is a black marking stretching from the 6th onto the elytral margin. Behind the centre there is a transverse marking stretching from the 2nd elytral interval onto the elytral margin; this marking is less long in the 3rd and 6th interval. Finally there is a black apical spot occupying the apex of the elytral intervals 3 to 7. Setae on pronotum, elytra and pygidium yellow, long but not dense. Femora yellow, tibia and tarsi reddish brown. Pygidium black. Antennal club yellowish brown.
    Clypeus truncate, not sinuate antero-medially, anterior margin upturned, lateral sides straight to the genal suture, from there evenly rounded backwards. Punctures on the lateral sides of clypeus large, separated by about their diameter, in the middle of the clypeus the punctures are very small, widespread and short setigerous, not visible with naked eye. Frontal suture not present. Vertex elevated into a plate with two long and slender, backwards bent and inwards curved horns, the external angle of the horns nearly rectangular and flattened, the edge of the plate between the horns nearly straight. The base of the horns with identical great punctures as on the clypeus.
    Pronotal anterior margin strongly bordered, posterior margin very finely bordered. Pronotal anterior angles acute, lateral margin behind the anterior angles not emarginate, nearly straight to the median angle, posterior angles emarginate. Pronotal disk confluent, great, deep and setigerous punctate. Pronotal anterior declivity smooth except for some great punctures bothsides, these punctures identical to the great punctures on the clypeus but separated by more than their diameter. Above the anterior declivity are two indicated (only visible in frontal view), punctate gibbosities, and a greater, impunctate gibbosity in the middle of the disk.
    Elytral striae fine, simple, strial punctures distinct, very small, not crenating the interstrial sides. Elytral intervals flat to barely convex, biseriate granulate, granules greater than the strial punctures.
    Metasternum punctate except for a longitudinal midline. Pygidium basally bordered, setigerous punctate.
    The femora ventrally setigerous punctate. Protibia elongate, quadridentate externally, the fourth denticle very small, with the margin above and between the teeth denticulate. Tarsi of middle and hind legs as long as the tibia.
    Female
    Differing from male in the following characters: Head with cupreous cast. Frontal suture more or less indicated. Punctuation of the head more intensive, anteriorly rugose, the great punctures also present in the middle of the vertex. Vertex highly elevated into a nearly quadrangular plate, the upper edge emarginate. Otherwise as in male.
    Length: Length: 6-7 mm.
    Distribution: India


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