Filling gaps and update of the distribution of Strabomantis ingeri ( Cochran & Goin , 1961 ) ( Anura : Craugastoridae ) in Colombia

We report records of new localities and an update for the distribution of the Inger’s Robber Frog, Strabomantis ingeri, a rare and vulnerable species from the Colombian Andean cloud forests. We report the first record of S. ingeri for the Boyacá department.


Introduction
Inger's Robber Frog, Strabomantis ingeri (Cochran & Goin 1961), is an uncommon Terrarana frog of the Craugastoridae family, belonging to the Sulcatus group (Hedges et al. 2008, Lynch 1981).It is listed as Vulnerable by the IUCN Red List because its area of occurrence is less than 20,000 km 2 , its area of distribution is severely fragmented, and the extent and quality of its habitat are both in continuous decline.It has a discontinuous distribution in cloud forests from both slopes of the Cordillera Oriental of the Colombian Andes, at 1700-3320 m (Castro et al. 2004, Ramírez-Pinilla 2004, Bernal and Lynch 2008).This species has been previously reported in the Cordillera Oriental in the departments of Cundinamarca (Cochran and Goin 1961), Santander (Lynch 1981) and Norte Santander (Rueda-Almonacid et al. 2004).It is believed that this species is also present in the depart-ment of Boyacá (Lynch 1997), but there are no published records from this area.Herein, we update the geographical distribution of S. ingeri, adding new locality records based on specimens deposited in scientific collections and visual records.

Results
The main morphological traits considered for the identification of the collected specimens as S. ingeri were

A B
(1) fingers lacking discs but small discs on toes, (2) skin of venter areolate, (3) intern tarsal fold, (4) upper eyelid bearing 1 conical tubercle, (5) toes bearing lateral fringes, (6) broad vomerine odontophores, and (7) a frontoparietal furrow formed by cranial crests elevating posteromedial to orbits (Lynch 1981, Lynch 1997).Strabomantis ingeri can be erroneously confused with its sister species S. cadenai because of the existence of contact between the zygomatic ramus of the squamosal and the posterodorsal portions of the pars facialis of the maxila, but the latter is only distributed in the Cordillera Occidental of Colombia (Lynch 1997, Ospina 2012).

Discussion
With these new records for the western flank of the Cordillera Oriental in Boyacá and Santander departments, we fill gaps of the discontinuous distribution of this uncommon species and expand the lower altitudinal range from 1700 m (Bernal and Lynch 2008) to 1380 m above sea level (UIS-A-5375).However, consistent inventories are needed on the eastern flank of the Cordillera Oriental to establish the real distribution of this species, as well as the state of their populations.
Figure 1.Current distribution of Strabomantis ingeri in Colombia, showing previously known (blue circles) and new records (red triangles).The green areas correspond to the protected areas in Colombia.Datum: WGS84.

Table 1 .
Full list of the occurrences of Strabomantis ingeri in Colombia, based on literature, museum data and new records.