A New Species in the SubgenusSelenocoprisBurmeister, 1846 (Coleoptera: Scarabaeidae: Scarabaeinae: DichotomiusHope) from Panama Author Nunes, Rafael V. text The Coleopterists Bulletin 2016 2016-06-30 70 2 375 379 http://dx.doi.org/10.1649/0010-065x-70.2.375 journal article 10.1649/0010-065X-70.2.375 10106903 Dichotomius ( Selenocopris ) aielloae Nunes , new species ( Fig. 1A–E ) Type Material. Holotype male. PANAMA : Darien Pr. Cana , Pirre Trail. El. 1250m ., 4-7-VI-96. F.I. T . A. R . Gillogly / STOCKWELL STRI-ENT 375 Fig. 1. Dichotomius aielloae . A) Holotype male STOCKWELL STRI-ENT 0046987, dorsal habitus, B) Paratype female STOCKWELL STRI-ENT 0046985, dorsal habitus, C) Same paratype female, ventral habitus, D) Frontal view of male cephalic carina with a central blade-like horn. E) Detail of female sixth sternite with white arrow indicating the central pair of tubercles. 0046987 [ STRI-ENT ]. Paratypes : same data as holotype / STOCKWELL STRI-ENT 0046986 [ 1 male at STRI-ENT ] ; same data as holotype / STOCKWELL STRI-ENT 0046985 [ 1 female at STRI-ENT ] . Diagnosis. The angulation of the clypeogenal junction (straight on males, obtuse female) ( Fig. 1A–B ) and pair of tubercles on the female sixth abdominal sternite ( Fig. 1E ) place this species in the Dichotomius quadraticeps species-group (Nunes and Vaz-de-Mello, unpublished data). Dichotomius aielloae is separated from other species in this group by the male cephalic carina, which bears a central blade-like horn (ventral view) ( Fig. 1D ). Fig. 2. A) Type locality of Dichotomius aielloae (open circle in square) and locality (star) for Dichotomius fonsecae in Ecuador, B) Satellite image of type locality (open circle) showing the main mountain ranges in the region. This species can be separated from other Panamanian Dichotomius species by modifying couplet 6 of Howden and Young’ s (1981) key: