Antipodosis rotoroa, Jaschhof, 2016

Jaschhof, Mathias, 2016, New species of Monepidosis Mamaev, 1966 and Antipodosis gen. nov., a closely related genus from New Zealand (Diptera, Cecidomyiidae), European Journal of Taxonomy 192, pp. 1-24 : 14-15

Antipodosis rotoroa gen. et sp. nov.

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Fig. 8 A–B

Diagnosis

The gonocoxal processes are more prominent in A. rotoroa gen. et sp. nov. (↓, Fig. 8A ) than in any other Antipodosis gen. nov. The gonostylus is slightly curved, tapered towards the apex, and equipped with a long pectinate tooth (↓, Fig. 8A ). The apex of the ejaculatory apodeme is two-pointed (↓, Fig. 8B ). At the bases of the dorsal parameral tusks are small accessory processes, which are weakly sclerotized and blunt-ended (↓, Fig. 8B ).

Differential diagnosis

See A. australis gen. et sp. nov. ( Fig. 2 ) and A. pureora gent. et sp. nov. ( Fig. 5 ) for two species with genitalic structures superficially similar to that found in A. rotoroa gen. et sp. nov.

Etymology

The name rotoroa , which means ‘the long lake’ in the Maori language, refers to Lake Rotoroa, whose vicinity provides the only habitat yet known of this porricondyline.

Type material

Holotype

NEW ZEALAND: Ƌ, South Island , Buller , Lake Rotoroa, mixed podocarp/southern beech forest, 450 m, 15 Jan. 2001, Malaise trap “15”, Department of Conservation St Arnaud ( NZAC).

Paratype

NEW ZEALAND: 1 Ƌ, same data as the holotype ( NZAC).

Other characters

BODY LENGTH. 2.0 mm.

HEAD. Eye bridge 7–8 ommatidia long dorsally. Circumfila on flagellomeres 1–12. Neck of fourth flagellomere 1.5 times longer than node. Palpus 1.3 times longer than height of head.

WING. Length/width 2.6.

LEGS. Empodia rudimentary.

TERMINALIA ( Fig. 8 A–B). Ninth tergite subtrapezoid. Gonocoxites ( Fig. 8A ): processes subtriangular (↓); ventral emargination large, extends beyond midlength of gonocoxites, largely occupied by membranous outgrowths of medial bridges (↓), with glabrous rim basally; apodemes merged into large, subrectangular plate that protrudes far beyond anterior gonocoxal margin (↓). Apex of ejaculatory apodeme bent ventrally ( Fig. 8B ). Ventral parameral tusks only slightly bent, dorsal tusks directed posteriorly ( Fig. 8B ).

ejaculatory apodeme, ventral. Scale lines: 0.05 mm.

Figures

Fig. 8. Antipodosis rotoroa gen. et sp. nov., Ƌ, holotype. A. Genitalia, ventral. B. Parameres and

Fig. 2. Antipodosis australis gen. et sp. nov., Ƌ, holotype. A. Genitalia, ventral. B. Parameres and ejaculatory apodeme, ventral. Scale lines: 0.05 mm.

Fig. 5. Antipodosis pureora gen. et sp. nov., Ƌ, holotype. A. Genitalia, ventral. B. Parameres and ejaculatory apodeme, ventral. Scale lines: 0.05 mm.