July 2024

Salt outcrop at the foot of Cardona Castle mountain

The Cardona geological formation that is well-known in the mountain of Salt of Cardona outcrop, can also be seen on surface at the foot of the Castle of Cardona mountain, in the meander of the Cardener river in La Coromina. This smaller salt outcrop at the bottom of Castle mountain hosts halophytes, the plants thriving … Read more

Great capricorn beetle

Cerambyx cerdo

Cucujiformia » Cerambycidae

The great capricorn beetle (Cerambyx cerdo) belongs to the family Cerambycidae. It is an astonishing beetle of slender body about 5 cm length with extremely long antennae made up of thick and knotty flagellomeres. The antennae of the males – photo 1- are twice the length of the body, while that of females -photos 2nd, … Read more

Puigberenguer (Manresa, Bages), 29.06.2024

The ICHN-Bages group (photos 1st and 2nd) on the hill of Puigberenguer, the oldest fluvial terrace remaining on the left bank of the Cardener river, 87 meters above the current level of the river, during the session devoted to the Quaternary terrains on 29.06.2024. The group listens to the explanations of Josep Biosca Munts (photo … Read more

River terraces of the Cardener river in Callus and in Manresa

Historical diagrams of the arrangement of the terraces in the Cardener river valley: above, from 1929, in Callús; in the center, from 1940, in Manresa and Sant Joan de Vilatorrada; and below, from 1960, in the current Plaça Catalunya neighbourhood of Manresa. The figures, in the 1940 and 1960 diagrams, indicate the level difference in … Read more

June 2024

Stictoleptura cordigera

Stictoleptura cordigera

Cucujiformia » Cerambycidae

Stictoleptura cordigera is a small size, long-horned beetle, thus a beetle of the family Cerambycidae. It measures 16-20 mm in length without the long antennae. Stictoleptura cordigera has head, pronotum, legs and antennae in dull black colour, while the elytra are reddish brick colour with a characteristic black spot shaped as a wide strip at … Read more

Reteporella sp.

Reteporella sp.

Cheilostomatida » Phidoloporidae

Reteporella sp. Bryozoa of order Cheliostomatida from the marine Eocene in the valley of Golarda near La Coma (Monistrol de Calders, Moianès). Bryozoa are a large group of colonial animals living on the seabed that can easily be mixed up with corals or sponges. Bryozoa expanded along Paleozoic era, but at the end of the … Read more

Quercus x auzandrii

Quercus x auzandrii

Fagales » Fagaceae

Quercus x auzandrii (= Q. x auzendi, Q. x ausendi) is the hybrid species from the cross between the holm oak (Q.ilex) and the kermes oak (Q.coccifera). As expected, its morphological features are something between a holm oak and an kermes oak; you can’t decide whether it is an oak or a kermes oak, it … Read more

May 2024

Waterfall of La Baga Cerdana or La Coma

The stream of L’Om or La Baga Cerdana is a tributary going down from the Moianès plateau, from the area of the country houses of La Grossa (Calders) and La Moratona (Moià), to join the stream of La Golarda or Marfà on the gangway of Palanca de La Coma (Monistrol de Calders). The stream of … Read more

Natural shelter of La Coma

The natural shelter of La Coma is on the left bank of the Marfà or Golarda stream, not far from the farmhouse of La Coma and a few hundred meters before the confluence of the stream of La Baga Cerdana or L’Om, in the municipality of Monistrol de Calders. The shelter of La Coma is … Read more

Lepra amara

Lepra amara

Pertusariales » Pertusariaceae

Lepra amara (= Pertusaria amara) is a light grey crustacean lichen that is often well seen on the blackish bark of evergreen oak trunks. The thallus of Lepra amara can reach 20 x 30 cm, although the boundaries between specimens may not be clear. In this thallus, the soralia, made up of granules containing soredia, … Read more

Shelter of Els Burjons fountain

The shelter of the Els Burjons fountain is on the cliff of the left bank of the river Llobregat, upstream from Les Generes bridge towards Navarcles although in the municipality of Talamanca. It spans about 300 meters length between the bridge of Les Generes and the area of rapids of the river Llobregat in front … Read more

The Llobregat river rapids in Sant Benet de Bages

The Llobregat river becomes young again in front of the monastery and the factory of Sant Benet de Bages: the slope increases and the flow speeds up in a stretch of rapids resulting from the outcrop of a reef limestone that is harder than the remaining rocks in the area. The rock is best seen … Read more

April 2024

The surroundings of Sant Benet de Bages, 04/20/2024

On the afternoon of 04/20/2024, within the journey of 125th anniversary of the ICHN celebration, members of the Delegation of Bages guided a naturalistic outing around Sant Benet de Bages. Florenci Vallès managed the interpretation of the vegetation. In the 1st image, Florenci Vallès showing the great Himalayan cedar (Cedrus deodara) in the garden of … Read more

Celebration of the 125th anniversary of the ICHN, 20.04.2024

Saturday 20.04.2024 was devoted to the commemoration of the 125 years of the Institució Catalana d’Història Natural in the facilities of Món Sant Benet (Sant Fruitós de Bages), 125 years of studying and protecting nature. Several previous presidents of ICHN, as well as the current Jordina Belmonte attended. They are present at the table and … Read more

Sabalites sp.

Sabalites sp.

Arecales » Arecaceae

Sabalites sp. is an extinct genus of palm trees that is worldwide known as a fossil from the Upper Cretaceous to the Miocene. Sabalites sp. has large palmate leaves in a radial arrangement like a fan with leaflets with marked ribs and partially welded at the base. The images show the sandstone block with several … Read more

Landslide in the stream of Jaumandreu

From time to time, mostly after heavy rains, landslides occur on cliffs and steep slopes. The risk of falling rocks can be assessed, though the accurate prediction when the rocks will fall is much more uncertain. The rocks of continental origin of the geological formation Artés are heterogeneous after the changing ratio of clay, sand, … Read more

Jaumandreu (Fonollosa, Bages), 13.04.2024

Part of the ICHN-Bages group onto the stairs of an old wall made of dry stone that is located at the beginning of the stream of Jaumandreu, in the walk from Els Manxons to the belvedere of El Garrigar (Callús and Fonollosa, Bages), on 13.04.2024. [photo Jordi Badia]

March 2024

Riverbank of Cardener in Manresa, 02.03.2024

Part of the ICHN-Bages group in the left riverbank of Cardener where the canes have just been removed, below the quarters of Sant Pau and the Red and White factories, during the birdwatching activity led by Ferran Fitó, on 02.03.2024. [photo Jordi Badia]

January 2024

The wetland of La Bòbila dry in winter 2023-24

For the first time, the wetland of La Bòbila, in Santpedor, has completely dried up along winter 2023-24. It can’t host wintering birds anymore. The image that was taken in the cold morning of 09.01.24 from the observatory Jordi Falip displays the dry bottom of the theoretical largest pond without a single drop of water. … Read more


Ferdinandea aurea

Brachycera » Syrphidae

Ferdinandea aurea is a nice looking syrphid that combines broad golden with narrow black stripes on the abdomen. The thorax is black with two grey bars on the middle and two shorter ones on the sides. The wings display a defined pattern of dark spots. Ferdinandea aurea displays on its yellowish face a brownish longitudinal … Read more

December 2023

November 2023

Cel rogent, pluja o vent (= red sky, rain or wind)

Red-coloured altocumulus clouds during sunset announce the imminent arrival from the west of an Atlantic cold front. The Catalan aphorism is accurate: cel rogent, pluja o vent (= red sky, rain or wind). The altocumulus clouds go ahead of the cold fronts. They spread like a white sheet in a sinusoidal pattern of regular and … Read more

Shelter of L’Espluga

The Shelter of L’Espluga is a long and non that deep cave in limestone rock, thus a shelter rather than a cave or Espluga (= cave in Catalan), in the municipality of Sant Quirze Safaja, in the district of Moianès. The Shelter of L’Espluga translates the name to the stream of L’Espluga that jumps over … Read more

The holm oak of Querol

The holm oak of Querol stands for the large holm oaks that often grow near the Catalan country houses. The image of its vigorous trunk that divides into robust radial branches supporting a wide, rounded, and regular treetop is magnificent. In 1991, the holm oak of Querol was declared monumental tree of Catalonia. The file … Read more

The holm oak of L’Erola

The holm oak of L’Erola grows in the municipality of Calders, on the right side of the road B-124 from Calders to Monistrol de Calders, about 250 meters away from the roundabout. It picks the name from the country house of L’Erola or L’Arola of the neighbourhood next to the road N-141c from Manresa to … Read more

Cryphia pallida

Cryphia pallida

Macroheterocera » Noctuidae

Cryphia pallida is a small moth from the Noctuidae family, reaching only about 18-20 mm wingspan. The forewings are brown with a greenish shade plus a poor consistent pattern of dark spots painting a bizarre appearance that becomes cryptic when the moth rests on the rough, colonized by lichens bark of a tree. The forewings … Read more

October 2023

Deer roaring in Taús (Alt Urgell), 07.10.2023

See a pair of videos of the roaring of the red deer (Cervus elaphus) that was listened and seen through binoculars and telescopes from long distance, from the hermitage of La Mare de Déu de la Guia, in Taús (Alt Urgell), in 07.10.2023 during the naturalist outing of the ICHN-Bages to Les Valls d’Aguilar. The … Read more

Pont Foradat o pont de Les Arnaules (Manresa, Bages), 21.10.2023

Part of the ICHN-Bages group crossing El Pont Foradat (= the holed bridge) or Pont de Les Arnaules, a natural bridge of rock, during the naturalist walk on 21.10.2023 from the Seo of Manresa to Viladordis. The access to El Pont Foradat was a new route, after crossing the C-16 Terrassa-Manresa highway through the stream … Read more

Malbalç (Manresa, Bages), 21.10.2023

The ICHN-Bages group at the Malbalç paleontological site (Manresa, Bages), with the Collbaix mountain in the background, during the naturalist walk on 21.10.2023 from the Seo of Manresa to Viladordis along the bank of the Cardener river, the Malbalç and the Pont Foradat or Pont de Les Arnaules. [photo Jordi Badia]

September 2023

Castle of Castellcir or castle of Popa

The castle of Castellcir or castle of Popa is in this municipality of the district of Moianès, onto an isolated rocky cliff that elongates from SW to NE and that is eroded at the base. The rocky cliff is about 10-12 meters tall above the ridge in a vertical or overhanging wall. It dominates the … Read more

July 2023

May 2023

Crossing Merlès creek, 27.05.2023

Part of the group crossing the creek of Merlès by an appropriate footbridge where it borders between the municipalities of Gaià (Bages) and Puig-Reig (Berguedà), during the ICHN-Bages naturalist outing on 27.05.2023. Realize the high flow rate and the brown colour of the water; the creek has recovered after the rains of the 2nd half … Read more

The drought in the cereal fields

The drought in the cereal fields The farmers of the Bages district, most of them elderly, do not remember a cereal harvest as miserable as the one in 2023. The drought continues since January 2021 and it has been especially severe in the last 9 months, from September 2022 to April 2023. It might last … Read more

April 2023

Stromatolithic limestone

Stromatolithic limestones are originated by stromatolites, these are made of microorganisms mucilaginous mats growing in shallow flooded, illuminated areas, usually in intertidal areas from flat and calm coasts. Stromatolites still exists, though they use to be much more abundant and extensive at the beginning of life, during the Archean eon. The biggest stromatolites are sinusoidal … Read more

March 2023

Mequinensa Mine Museum (Baix Cinca), 25.03.2023

The ICHN Bages group visiting the Mequinensa Mine Museum (Baix Cinca), on 25.03.2023. The mine is in fact one suitable to visitors museum displaying the successive lignite exploitation techniques that have been used in Mequinensa over 170 years. [photos Museums of Mequinensa]

Slope of Valcarreres (Baix Cinca)

The ICHN-Bages group listening about the vegetation in the slope of Vallcarreres that links the plateau of Los Monegros with the valley of river Cinca, in the municipality of Torrent de Cinca (Baix Cinca), on 25.03.2023. Before, the group had visited the Museum of History and the Museum of the Mine in Mequinensa; later on, … Read more

The reservoir of La Llosa del Cavall almost empty

The images of La Llosa del Cavall (Solsonès) reservoir from the river Cardener, on 03.12.2023, illustrate how serious is present water scarcity in Central Catalonia. Rain has been poor since January 2021. The reservoir is at 26% capacity; it contains 20.8 hm3 of water from 80 hm3 total capacity. The large reservoir of La Llosa … Read more

February 2023

Esplugues (Castellcir)

Esplugues, in the municipality of Castellcir, is a troglodytic house that uses a natural shelter as a roof. It has a ground and two floors. It was inhabited from an unknown date until 2002. The Esplugues house is located on the right bank of the Fontscalents stream. It has one Romanesque bridge in front to … Read more

Rainfall difference between the periods 2000-2021 and 1950-1999

The graphs show monthly precipitation averages for the periods 2000-2021 and 1950-1999, and their differences, recorded at the meteorological stations of Manresa, Balsareny and Artés in the district of Bages, and Moià in the district of Moianès. Within the enormous interannual variability of rainfall, the averages that are obtained from a long enough time confirm … Read more

Temperature difference between the periods 2000-2021 and 1950-1999

The graphs show the average monthly minimum and maximum temperatures for the years 1950-1999 and 2000-2021, as well as the differences between the two periods, from the weather stations of Manresa and Artés (Bages), and Moià (Moianès). Both the minimum and the maximum temperatures, in all months and in both locations, temperatures in the period … Read more

January 2023

Macaroni stalactites

The forms originated by the deposit of minerals on the walls of the caves are collectively called speleothems. The stalactites hanging from the ceiling are the most characteristic speleothems. And among the stalactites, the type generally known by the expressive name of macaroni -although this meaning is not officially registered- are likely the most beautiful. … Read more

December 2022

Range of Miralles (Anoia), 17.12.2022

Observation of the recovery of the vegetation in the range of Miralles (Anoia) that was burned by the forest fire that started on 24.07.21 in Santa Coloma de Queralt (Conca de Barberà), a year and a half after the fire during the outing from ICHN-Bages on 17.12.2022. The plants with the ability to sprout have … Read more