A CONTRIBUTION TO THE KNOWLEDGE OF TURKISH DRYOPIDAE, ELMIDAE AND HETEROCERIDAE (COLEOPTERA: BYRRHOIDEA) FAUNA

Abstract In this study, species of the superfamily Byrrhoidea Latreille, 1804 (Coleoptera: Dryopidae, Elmidae and Heteroceridae) collected from Adıyaman province, Turkey, have been evaluated. The samples were collected from the vegetation in shallow areas of various lakes, rivers, watercourses and ponds. In the research area, four species belonging to Dryopidae, one subspecies belonging to Elmidae and two species belonging to the family Heteroceridae have been determined. Of these species; Dryops jeanneli Bollow, 1938 is recorded for the first time from Turkey; Heterocerus fusculus Kiesenwetter, 1843 is recorded for the second time from Turkey; Dryops lutulentus Erichson, 1847, Dryops nitidulus Heer, 1841, Dryops rufipes Krynicki, 1832, Elmis maugetii maugetii Latreillei, 1802 and Heterocerus fenestratus Thunberg, 1784 are recorded for the first time from the southeastern Anatolian region. Distributional data in Turkey and worldwide of these species are presented. The aedeagus photo of Dryops jeanneli Bollow and two Heteroceridae species are given.


INTRODUCTION
Dryopidae has 263 species belonging to 32 genera worldwide (Kodada et al., 2007).They are most diverse in Oriental and Neotropical regions and they live in many types of aquatic, semiaquatic and terrestrial habitats (Kodada and Jäch, 1995).Ten species belonging to three genera are known from Turkey (Kodada and Jäch, 2006).
Elmidae has 1 200 species belonging to 130 genera in the world fauna.They live in aquatic habitats, often in running waters.Only a few species live on lakeshores (Jäch and Kodada. 1995).Nineteen species and nine subspecies belonging to nine genera are known from Turkey (Jäch et al., 2006).
Heteroceridae has 200 species belonging to 5 genera worldwide (Mascagni, 1995).They usually live close to water in habitats consisting of mud or very fine sand.They spend much of their time in shallow galleries where they dig into the soil (Clarke, 1973;Aguilera et al., 1998;Mascagni, 1995).They do not occur on very stony shores or in mountain areas (Aguilera et al., 1998).Thirteen species belonging to two genera are known from Turkey (Mascagni, 2006).

MATERIALS AND METHODS
Specimens were collected from freshwater habitats in Adıyaman province with sieves with 3.15x1-mm mesh size.The beetles were killed with ethyl alcohol (70%) and were stored in small bottles until identification.Specimens were cleaned with a brush before identification.Aedeagophores of collected specimens were dissected under a stereo microscope (Soif SZM45) in the laboratory.Identification of Dryopi-dae and Elmidae specimens was done according to Olmi (1976).The identified species have been converted into museum material and deposited in author's collections.
Diagnosis -Body is 5-5.1 mm in length, longer than Bollow's specimens (4-4.2 mm) (Bollow, 1938).Body has two different color tones; head and pronotum are black, elytra is brown.Legs are dark brown color.The aedeagus is 1.45 mm in length.Paramere on the inner side has a dark spur with little serration near the subapical.Median lobe divided into two branches at the distal apex with sharp and bulky teeth that look outwards (Figs.1-2).
Distribution in Turkey -Newly recorded from Turkey (Fig. 4).
Remarks -This species was identified for the first time from Turkestan (Samarkand, Uzbekistan) by Bollow in 1938.This is the second record from the Palaearctic region and world Dryopidae fauna.
Note: Newly recorded from southeastern Anatolian region.
Note: Newly recorded from southeastern Anatolian region.
Note: Newly recorded from southeastern Anatolian region.
Remarks -Heterocerus fenestratus is similar to H. fusculus.The aedeagophore of both species has a similar shape, but the apex of the penis is rounded in H. fenestratus (Fig. 3a) and slightly pointed in H. fusculus (Fig. 3b).
Note: Newly recorded from southeastern Anatolian Region.
Remarks -In Mascagni (2006), Catalogue of Palaearctic Coleoptera volume: 3, the existence of this species has been given from Turkey, but the exactly locality data has not been published yet (personal communication with A. Mascagni).
Note: Second record from Turkey.

DISCUSSION
Turkish Byrrhoidea (Coleoptera) fauna has not been fully investigated yet.There are a few studies that include some provinces of Turkey (Fig. 4).In this study, six species and one subspecies belonging to Dryopidae (4), Elmidae (1) and Heteroceridae (2) (Coleoptera: Byrrhoidea) were recorded in freshwater habitats and the environs of Adıyaman province, Turkey.In these species; Dryops jeanneli Bollow, 1938

Fig 3 .
Fig 3. Heterocerus spp., a and b; aedeagus dorsal view, a, H. fenestratus; b, H. fusculus has been recorded for the first time from Turkey.Heterocerus fusculus Kiesenwetter, 1843 is recorded for the second time from Turkey.Dryops lutulentus Erichson, 1847, Dryops nitidulus Heer, 1841, Dryops rufipes Krynicki, 1832, Elmis maugetii maugetii Latreille, 1802 and Heterocerus fenestratus Thunberg, 1784 have been recorded for the first time from the southeastern Anatolian region.With these new distributional records, the knowledge of Turkish Byrrhoidea fauna has been increased.More studies are required to establish the overall distribution of Turkish Byrrhoidea fauna.