Note on cavernicolous beetles of Bulgaria. V., 1965, Gueorguiev Vassil B.

Three caves of the central part of the Bulgarian Balkan (Stara planina, close to the village of Etropolé) host cavernicolous beetles of the subfamily Bathysciinae (family of Catopidae) that constitute a new genus of the Brachyscapes group. In this paper the diagnosis of this new troglobe genus together with the description of the type species Balcanobius etropolensis, gen.n., sp.n. are given. The new genus is then inserted in the dichotomic table as defined by R. Jeannel, placing it close to the other two Yugoslavian genus Parapropus and Spelaeodromus.

A new species of Niphargus (Gammaridae, Amphipoda) of Bulgaria., 1966, Andreev Stoitze

The author describes a new species, Niphargus toplicensis n. sp., of the spring «Toplitzata» near the village of Mussomischta (district of Goze Delcev). N. toplicensis n. sp. Is closely related to N. aquilex moldacicus Dobreanu, Manolache and Puscariu, 1953, N. smederevanus Karaman, 1950, N. anatolicus Karaman, 1950, N. pancici Karaman, 1929, N. pancici clkanovi Karaman, 1959 but differs for several characters (a greater number of setae on the internal lobe of maxilla I, the coxal plates longer than their width, different armour of the telson and of the uropods I etc.).

Pelodrilus bureschi Mich. 1924 (Oligochaeta Haplotaxidae) of the caves of Banat (Romania)., 1966, Botea Francisc, Botosaneanu Lazare

Pelodrilus bareschi Mich., one of two species of limicolous oligochaetes strictly confined to a subterranean environment and previously known from several caves in Bulgaria and Yugoslavia, was recently found in three caves in the Banat Mountains, Romania. Examination of sexually mature worms showed that they are within the range of variability of P. bareschi and that there is no reason to describe a form peculiar to the caves of Banat. Pelodrilus has almost always been found in the mud or clay covering the bottom of pools of variable size, which are filled by periodic flooding of underground water courses. The Banat colonies are small.

Cavernicolous Diptera collected in Bulgaria., 1966, Burghelebalacesco Anca

We present the list of the Limnobiidae, Mycetophilidae, Anthomyidae and Helomyzidae species collected in the caves of Bulgaria, most part on occasion of the third international speleological expedition.

Subterranean Hydracarida of Bulgaria. I., 1966, Petrova Anelya

A new species of Mideopsis (Nudomideopsis) motasi n. sp. coming from a well near Gorni-Ciflik, close to Belogradchik in NW Bulgaria, is described. For the structure of the palp it is distinguished from the other subterranean European species Mideopsis (Mideopsis (Nudomideopsis) longipalpis Szalay and Mideopsis (Nudomideopsis) fonticola Tanasachi et Orghidan and resembles some Japonese Mideopsis species found also in wells.

Ephemenoptera and Plecoptera from Bulgarian caves., 1966, Russev Boris K.

The mayfly Ecdyonurus venosus (Fabr.) and the stonefly Perla marginata bureschi (Schoenemund) have been previously recorded from Bulgarian caves. The author has found the following additional species in the material collected by his colleagues in Bulgarian caves: Ephemeroptera; Habroleptoides modesta (Hagen), Paraleptophlebia tumida Bengtss. and Paraleptophlebia sp.; Plecoptera; Nemoura sp. and Dinocras cephalotes (Curtis). All these species are trogloxenes.

Fauna from some areas in Bulgaria and one in Yugoslavia, 1970, Hazleton M.

Notes on Bulgarian Caves, 1970, Musgrove Roy

Some Notes on the Acari and Myriapoda collected by Mr. W.G.R. Maxwell in Bulgarian Caves, 1970, Turk F. A.

Giant caverns in Rhodopes, 1970, Sebev D. G.

Note on Lepidoptera from Bulgarian caves., 1971, Skalski Andrzej

This paper is a report on Lepidoptera collected in 1960 in some caves of the Stara Planina Mountains (Bulgaria). In three caves in the environs of Lakatnik the following species were found: Acrolepia granitella Tr., Acrolepia pulicariae Klim., Autophila limbata Stgr., and Triphosa sabaudiata Dup. Two species (Acrolepia pulicariae Klim. and Autophila limbtia Stgr.) are new for both the cave fauna of Bulgaria and fauna of Bulgaria.

Note on Lepidoptera from Bulgarian caves., 1971, Skalski Andrzej

This paper is a report on Lepidoptera collected in 1960 in some caves of the Stara Planina Mountains (Bulgaria). In three caves in the environs of Lakatnik the following species were found: Acrolepia granitella Tr., Acrolepia pulicariae Klim., Autophila limbata Stgr., and Triphosa sabaudiata Dup. Two species (Acrolepia pulicariae Klim. and Autophila limbtia Stgr.) are new for both the cave fauna of Bulgaria and fauna of Bulgaria.

On the cavernicolous fauna of Bulgaria. III. Results of the biospeleological researches from 1966 to 1970., 1972, Beron Petar

The present research follows two other earlier papers on the Bulgarian cave fauna (1962 and 1967). The three papers regroup the data on 431 Bulgarian karst caves, more or less studied from a biospeleological point of view. In this paper one will find a list of 147 new caves and pits with 293 animal species, of which 154 have not been mentioned in the earlier papers. A reference list containing 55 titles has been attached.

A new genus of Bulgarian cave spider (Protoleptoneta bulgarica n.g., n.sp., Leptonetidae)., 1972, Deltshev Christo

A new genus Protoleptoneta (P. bulgarica n. g., n. sp.) is described, which was collected in caves of the Western Balkan mountains; Bulgaria. The new genus unites features of the genera Leptoneta and Paraleptoneta but there are many differences, which divide it from these genera. It differs from Leptoneta as follows: the tarsus of male palp does not possess the characteristic apophysa of Leptoneta; the tarsus is less depressed and does not branch out; the teeth of chelicerae are equable and equidistant. It differs from Paraleptoneta as follows: the femora of male palp is spineless; near the top of tarsus, on ectal side, there is a thicker spot, provided with a strong spine longer than others; the tarsus is more depressed. Paraleptoneta italica is placed in the new genus Protoleptoneta. The origin and relationships between the genera Protoleptoneta, Leptoneta and Paraleptoneta are discussed; a hypothesis is that the genera Leptoneta and Paraleptoneta had been developing as independent phyletic groups and the origin of the two had been Protoleptoneta.

Note on Lepidoptera from Bulgarian caves., 1972, Skalski Andrzej

This paper is a report on Lepidoptera collected in 1960 and 1970 in some caves of the Lakatnik region in the Stara Planina Mts. (Bulgaria). The following species were found: Digitivalva granitella (Tr.), D. pulicariae (Klim.), Thiphosa sabaudiata Dup. and Autophila limbata Stgr. Two species, D. pulicariae (Klim.) and A. limbata Stgr. are new for the cave-fauna and fauna of Bulgaria.