Chitonomyces italicus Speg.

MB#155523

Fig. 21A–B

Anales del Museo Nacional de Historia Natural de Buenos Aires 27: 46 (Spegazzini 1915b). –

Type: “ Sobre el margen posterior de los élitros del Laccophilus obscurus ?, pescado en los zanjones de los alrededores de Conegliano, Nov, 1913 ”; LPS. [Italy]

Diagnostic features

Cell IIIa extending into a short and straight to arcuate or sigmoid, ± darkened, sometimes lobate up to 50 µm long outgrowth, which is directed upwards to outwards without exceeding the perithecial apex (Fig. 21A, arrow). [Detailed descriptions: Sugiyama 1977; Majewski 1994b; Santamaria 2001b, 2003; De Kesel & Werbrouck 2008]

Distribution and hosts

On the legs of Laccophilus (Col. Dytiscidae) in Europe (Belarus, Belgium, Germany, Italy – type –, Poland, Spain) and Japan (Majewski 2008; De Kesel & Haelewaters 2012).

Collections examined from Denmark

On Laccophilus minutus (Linnaeus, 1758) (Col. Dytiscidae)

DENMARK – Bornholm (B) • Raghammer Odde; 55°1.193′ N, 14°55.777′ E; VA99; 22 Jun. 2018; JP 1146; JP det.; ZMUC C-F-123669 . – Vestjylland (WJ) • Simmelmose; 55°46.299′ N, 9°3.519′ E; NG08; 2 Jun. 2019; JP 1478; JP det.; ZMUC C-F-124059 .

Remarks

First record from Denmark. The finding of this species in Denmark is not surprising because of its worldwide distribution.