Hygrotus orthogrammus ( SHARP 1882)

Ewalka, Pešić, V. & Darvishzadeh, I., 2012, Faunistic notes on some Hydradephaga from the Khuzestan, Hormozgan and Sistan & Baluchestan provinces in Iran, with descriptive notes on the female of Glareadessus franzi WEWALKA & BISTRÖM 1998 (Coleoptera, Dytiscidae, Noteridae), Linzer biologische Beiträge 44 (2), pp. 1057-1070 : 1060-1061

Hygrotus orthogrammus ( SHARP 1882)

Coelambus orthogrammus SHARP 1882: 405 (original description).

Coelambus lernaeus var. orthogrammus SHARP 1882 : ZIMMERMANN 1930: 101.

Coelambus lernaeus (SCHAUM 1857) : GUIGNOT 1959a: 332; HOSSEINIE 1976: 169; ALI 1978: 12; FRANCISCOLO 1979: 310; NILSSON 2001: 207 (catalogue).

Hygrotus lernaeus (SCHAUM 1857) : AL- HOUTY & ANGUS 1999: 184 (new combination).

Hygrotus orthogrammus ( SHARP 1882) : FERY et al. 2005: 36 (re-instatement, re-description, distribution); NILSSON & FERY 2006: 60 (catalogue); NILSSON 2012 (distribution).

This species has been treated for a long period as junior subjective synonym of Hygrotus lernaeus (SCHAUM 1857) (e.g. GUIGNOT 1959a: 332; FRANCISCOLO 1979: 310; NILSSON 2001: 207) or as variety of the latter (e.g. ZIMMERMANN 1930: 101) or misinterpreted as this species (HOSSEINIE 1976: 169; ALI 1978: 12; AL- HOUTY & ANGUS 1999: 184). FERY et al. (2005) re-instated this taxon as valid species. It is indeed externally very similar to H. lernaeus , on the other hand both are easily to separate by the shape of the prosternal

process which is almost flat in H. orthogrammus , but distinctly carinate in H. lernaeus ; the shape of the female gonocoxae is also specifically different ( FERY et al. 2005: 40, figs 12 and 13). The species is well-known from Iraq, Kuwait, Saudi Arabia and also from the Khuzestan province (among others) in Iran ( FERY et al. 2005: 37; NILSSON 2012: 43). Although the following record is not the first one for Iran, it is included here because it completes well the older records of this little known species: 1, 1, " 6.12.2010 Iran, Khuzestan, 10 km N Bandare Emam, ca. 30.58N 49.05E, altitude 21 m, basin, Darvishzadeh leg." (CHF) ( Fig. 23; square 2). A photo of the habitus of this species is provided here for the first time ( Fig. 13 ). The specimens were found together with Herophydrus musicus (KLUG 1834) and Hydaticus ponticus SHARP 1882 .

Figures

Figs 13-15: Habitus of (13) Hyphoporus solieri, (14) Hygrotus orthogrammus, (15) Canthydrus laetabilis.