Glemparon birhojohmi, Jaschhof & Jaschhof, 2018

Jaschhof, Mathias & Jaschhof, Catrin, 2018, Descriptions of eighteen new species of Glemparon, a previously monotypic genus of Porricondylinae (Diptera, Cecidomyiidae), European Journal of Taxonomy 450, pp. 1-38 : 10-12

Glemparon birhojohmi sp. nov.

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Fig. 5 A–C

Diagnosis

The following combination of genitalic characters is characteristic of G. birhojohmi sp. nov.: the gonostylus, which is twice longer than broad, is slightly constricted subbasally (↓ 1, Fig. 5A ); the gonocoxal posteromedial protuberance, which is flanked by small, subtriangular lobes, has a weakly sclerotized, T-shaped process that projects ventrally (↓ 2, Fig. 5A ); below the protuberance is an assemblage of conspicuously dense setae (↓ 3, Fig. 5A ); and the medial bridges have mostly setae of various sizes rather than microtrichia.

Etymology

In naming this new species birhojohmi , we honor Birgit Rhode and John Mitchell, of Papakura, Auckland, New Zealand. Birgit and John, both gifted with an artistic, creative disposition, have been supportive of our taxonomic work for many years. The name should be treated as a noun in apposition.

Material examined

Holotype

NEW ZEALAND: ♂, South Island, Tasman, Nelson Lakes National Park, Lake Rotoroa , 450 m a.s.l., 15 Jan. 2001, mixed podocarp / southern beech forest, Malaise trap, Department of Conservation St. Arnaud leg. ( NZAC, no. CEC1426).

Paratype

NEW ZEALAND: ♂, same data as for holotype but 4 Apr. 2001 ( NZAC, no. CEC1427).

Differential diagnosis

Glemparon nativitas sp. nov., a broadly similar species found in Stewart Island, differs in broader gonostyli ( Fig. 9B ) and details of the tegmen ( Fig. 9C ).

Other characters

BODY SIZE. 2.2 mm.

HEAD. Eye bridge 2–3 ommatidia long dorsally. Nine flagellomeres retained; neck of fourth flagellomere 1.8 times the node. Palpus slightly shorter than head height, 4 setae-bearing segments, apical segment conspicuously long, twice longer than penultimate segment.

THORAX. Pronotal setae present.

WING. Length /width ratio 3.4. Rs short, one seventh of apicR 1.

LEGS. Basitarsal spines present.

TERMINALIA. Posterior edge of ninth tergite with dense megatrichia. Gonocoxites without setae on narrowed ventrobasal portion ( Fig. 5A ). Gonostylar apex with slight depression above densely microtrichose portion medially ( Fig. 5A ). Sclerotized portion of ejaculatory apodeme pointed apically, covered by membranous cap ( Fig. 5C ). Posterolateral processes of tegmen with serrate edges, including 1–2 larger sawteeth anteriorly ( Fig. 5 B–C; see remark on variation).

Remark on variation

The paratype ( Fig. 5B ) differs slightly from the holotype ( Fig. 5C ) in that the tooth situated most anteriorly on the tegminal processes is conspicuously large and bent. These teeth are apparently somewhat variable in shape, size, and relative position.

Distribution and phenology

See G. aotearoa sp. nov. The paratype of G. birhojohmi sp. nov. was captured almost three months later than the holotype at the same site, indicating a long adult flight period in this species.

Figures

Fig. 5. Glemparon birhojohmi sp. nov., ♂♂. A. Genitalia, ventral, holotype (NZAC, no. CEC1426). B. Tegminal processes, ventral, paratype (NZAC, no. CEC1427). C. Apex of ejaculatory apodeme and tegmen, ventral, holotype. Scale bars: A, C = 0.05 mm; B = 0.025 mm. Numbered arrows indicate diagnostic characters (see Diagnosis).

Fig. 9. Glemparon nativitas sp. nov., holotype, ♂ (NZAC, no. CEC1421). A. Genitalia, ventral. B. Gonostylus, ventral. C. Tegmen, ventral. Scale bars = 0.05 mm. Numbered arrows indicate diagnostic characters (see Diagnosis).