Zadbimyia artborkenti, Jaschhof, Mathias & Jaschhof, Catrin, 2014

Jaschhof, Mathias & Jaschhof, Catrin, 2014, Zadbimyia, a new genus of asynaptine Porricondylinae (Diptera: Cecidomyiidae) with twenty-two new species from the cloud forest of Costa Rica, Zootaxa 3866 (1), pp. 1-29 : 8-9

Zadbimyia artborkenti sp. n.

Figs 2 B, 6A–D

Diagnosis. Zadbimyia artborkenti is another species with a single pair of apically curved paramere processes ( Fig.

6D) (see Z. costaricensis , Fig. 4 B, and Z. browni , Fig. 5 B). Unlike similar species, the ejaculatory apodeme in Z. artborkenti has a broad-lanceolate, often seemingly three-pointed apex ( Fig. 6 D), and the gonostyli are abruptly, not smoothly, curved apically ( Fig. 6 A–B).

Other male characters. Body length 1.3 mm. Head ( Fig. 2 B). Eye slightly narrowed ventrally, eye bridge 10–11 ommatidia long dorsally. Scape twice as long as pedicel. With 16–18 flagellomeres. Fourth flagellomere ( Fig. 6 C): neck length 0.4 × node length, neck on basal half with microtrichia, circumfilum irregularly sinuous, not looped. Palpus 4-segmented. Legs. Claws with tiny ancillary tooth subapically. Terminalia. Posterior margin of tergite IX concave medially. Gonocoxites ( Fig. 6 A): ventral emargination small, broadly U-shaped, with subtriangular sclerotization at base of U. Gonostylus parallel-sided on basal two thirds, then suddenly curved at almost right angle, tapered toward apex, excavated dorsomedially ( Fig. 6 A–B). Ejaculatory apodeme as long as parameres, basal portion weakly sclerotized, varying in shape ( Fig. 6 D). Parameres: basal portion subrectangular, apicomedial portion elongate, 3 times longer than wide; processes usually single-pointed ( Fig. 6 D), in one specimen with small ancillary point.

Etymology. This species is named after Art Borkent, a world expert on the systematics of various families of Culicomorpha and co-principle investigator of the ZADBI project.

Types. Holotype. Male, Costa Rica, San José province, Moravia, Zurquí de Moravia, 1600 m, 16 March 2013, CDC light trap, ZADBI Project (ZADBI #569, INBio #106297). Paratypes. 1 male, same locality as the holotype, 29 Oct. 2012, Malaise trap, ZADBI Project (ZADBI #107, INBio #105169); 3 males, same locality, 22 Sep. 2012, CDC light trap, ZADBI Project (ZADBI #42, INBio #105055); 1 male, same locality, 23 Sep. 2012, CDC light trap, ZADBI Project (ZADBI #38, INBio #105052); 2 males, same locality, 24 Sep. 2012, CDC light trap, ZADBI Project (ZADBI #53, INBio #105066); 1 male, same locality, 23–29 Nov. 2012, emergence trap over dry branches, ZADBI Project (ZADBI #257, INBio #105471).

Figures

FIGURE 2. Morphology of male Zadbimyia spp. A: basitarsus of foreleg, dorsolateral, of Z. browni. B: head, lateral, of Z. artborkenti. C: ditto, of Z. anniae. D: ditto, of Z. spinapiscis. E: fifth tarsomere of foreleg, lateral, of Z. browni. F: ditto, of Z. aberrans. Scale for A, E – F, 0.05 mm; B – D, 0.1 mm. clp = clypeus, eye br = eye bridge, fd chnl = food channel, lbl = labellum, lbr = labrum, mx prtb = maxillary protuberance, pfr = postfrons, plp = palpus, prfr = prefrons.

FIGURE 4. Zadbimyia costaricensis, male. A: ejaculatory apodeme and parameres, ventral. B: ditto. C: terminalia, ventral. D: fourth flagellomere, lateral. Scale 0.05 mm. ej ap = ejaculatory apodeme, par = paramere, par ap = parameral apodeme, par pr = paramere process.

FIGURE 5. Zadbimyia browni, male. A: gonostylus, ventral. B: ejaculatory apodeme and parameres, ventral. C: terminalia, ventral. D: fourth flagellomere, lateral. Scale 0.05 mm. acc gl dc = accessory gland duct, antGA = anterior portion of gonocoxal apodeme, lat shld = lateral shoulder, vtr em = ventral emargination.

FIGURE 6. Zadbimyia artborkenti, male. A: terminalia, ventral. B: gonostylus, ventral. C: fourth flagellomere, lateral. D: ejaculatory apodeme and parameres, ventral. Scale 0.05 mm.