Aegidinus petrovi Colby, 2009

Colby, Julia, 2009, Monographic revision of the genus Aegidinus Arrow (1904) and generic phylogeny of the world Orphninae (Coleoptera: Scarabaeidae: Orphninae)., Insecta Mundi 2009 (76), pp. 1-41 : 32

Aegidinus petrovi Colby , new species

Fig. 61-62 , 89

Type material. Holotype male at BMNH labeled: a) “ Peru, Loretto // near Iquitos // Itaya River, 5.ii.2006 // leg A. Petrov // BMNH (E) 2006-123” (Printed, rectangular label with a green printed line 1/3 rd from top)/ b) my handwritten type label.

Type locality. Peru, Loreto, Iquitos, Itaya River.

Description. Holotype male. Length 10.0 mm; width 5.5 mm. Color: Head, pronotum and elytra piceous. Venter and legs piceous to reddish brown. Head: Frons convex, impunctate. Frontoclypeal suture effaced. Clypeus rugopunctate, punctures small. Anterior margin of clypeus with slightly reflexed, attenuate, erect horn, without bead or carina. Pronotum: Surface punctate, a few sparse to moderately dense, large punctures on sides. Basal margin with the occasional puncture. Disc with subtriangular fovea; fovea bordered on each edge by an erect, large, subtriangular, obliquely compressed tumosity. Anterior margin of pronotum with median, subtriangular tubercle. Elytra: Punctures of striae elongate or vermiform, occasionally U- or V-shaped. Striae 1-3 obsolete up to half distance between base and humeral umbone. Lateral margin adjacent to humerus with 11 (right) or 12 (left) setose crenulations. Legs: Protibia with apical denticle. Genitalia: Fig. 61-62 .

Diagnosis. This species is best identified using the male genitalia ( Fig. 61-62 ) which are similar in form to the genitalia of A. teamscaraborum ( Fig. 63-64 ). The lateral and median lobes of the parameres of A. petrovi are subequal in length, but in A. teamscaraborum , the median lobes are longer than the lateral lobes. Females are not known for this species.

Etymology. This species is named in honor of Dr. Alexander Valentinovich Petrov, a specialist on Scolytidae at the Moscow State Forest University in Russia, who collected the holotype.

Distribution (Fig. 89). Peru. One specimen from BMNH. PERU (1): Loreto: Itaya River (near Iquitos) (1).

Temporal Distribution. February (1).

Natural History. Nothing is known about the natural history of this species.

Figures

Figures 50- 64. Male genitalia. Scale bar = 1 mm. 50) Parameres (frontal view) of A. guianensis. 51) Parameres and part of phallobase (lateral view) of A. guianensis. 52) Parameres (frontal view) of A. howdenorum. 53) Parameres and part of phallobase (lateral view) of A. howdenorum. 54) Ventral plate of A. howdenorum. 55) Lateral lobe of A. howdenorum. Arrow indicates notch. 56) Parameres (frontal view) of A. howeae. 57) Parameres and part of phallobase (lateral view) of A. howeae. 58) Parameres (frontal view) of A. oreibates. 59) Parameres and portion of phallobase (lateral view) of A. oreibates. 60) Ventral plate of A. oreibates. 61) Parameres (frontal view) of A. petrovi. 62) Parameres and part of phallobase (lateral view) of A. petrovi. 63) Parameres (frontal view) of A. teamscaraborum. 64) Parameres and part of phallobase (lateral view) of A. teamscaraborum.