Megaphyllum projectum deubeli ( Verhoeff, 1899 )

Lazányi, Eszter & Korsós, Zoltán, 2011, Revision of the Megaphyllum projectum Verhoeff species complex (Myriapoda: Diplopoda: Julida: Julidae), Zootaxa 2864, pp. 43-56 : 49

Megaphyllum projectum deubeli ( Verhoeff, 1899)

Figs. 9–13 , 17 c.

Brachyiulus (Chromatoiulus) projectus Deubeli Verhoeff, 1899 (pp. 192–193, Figs. 24–25)

Material examined. MNB: ZMB 3314: 1Ƥ, syntype, Rodnagebirge (Rodna Mts., Romania), Kuhhorn (Ineu Peak), Deubel leg; ZMB 12972ab: 233, male gonopods, syntypes, slide preparation, (Nr. 1273, 1274 Coll. Verhoeff). HNHM: Kuhhorn (Ineu Peak); 13, 1Ƥ, Romania, Maramureş Mts., Borşa - Bǎile Borşa, valley of the Cislei stream, from streamside mud, 1320m, 27. July 2007, leg. Grabant, A., György, Z., Merkl, O. & Podlussány, A., det: E. Lazányi.

Diagnosis. Promere ( Fig. 9 ) triangular, with no apical serrated lobe, medial surface of promere coarse. Anterior process of opisthomere ( Fig. 10 ) rudimentary, shorter than posterior process, the latter better developed than in the other two subspecies. This peculiar shape of opisthomere visible from every direction ( Figs. 11–13 ).

Vulvae similar to, but a bit thinner than those of M. p. kochi females (see there).

Remarks. Due to the small sample size (5 specimens altogether, but only 1 male and 2 females with body segments) body size parameters can not be suggested. In our case, body length and height seemed to be the smallest among the subspecies: the single male was 23.8 mm long (proposed range for males: 21–28 mm (Verhoeff 1907)), 1.7 mm high, with (44+2+T) segments, in the developmental stadium X; females were 29.9–30.1 mm long, 2.5–2.7 mm high, with (44+0+T)–(46+1+T) segments and in the developmental stadium XI. Differences in vulva structure of this subspecies may not be significant; this needs further investigations, involving more female specimens.

Figures

FIGURE 17. (a) M. p. kochi female from Ohlau, Germany: left and right vulva from caudal view. (b) M. p. kochi female from Sanssouci, Germany: left vulva from caudal, right vulva from mesal view. (c) Vulvae of a M. p. cf. deubeli female from Bǎile Borşa, Maramureş Mts., Romania: right vulva anterior view and left vulva mesal view (scale bar: 0.2 mm).

FIGURES 9 – 13. (9) Left promere of the M. p. deubeli specimen from Bǎile Borşa, Maramureş Mts., Romania, mesal view. (10) Left opisthomere of the same individual, lateral view (scale bars: 0.2 mm). The same opisthomere from (11) caudo-lateral view; (12) lateral view; (13) antero-lateral view (scale bars: 0.1 mm).