Zadbimyia minima, 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 : 10-11

Zadbimyia minima sp. n.

Fig. 8 A–C

Diagnosis. Zadbimyia minima , the smallest species known of Zadbimyia , is unique in the eyes having the lateral portions slightly narrowed and with paler and more distant ommatidia. The parameres have pronounced, lobe-like shoulders and one pair of small, hooked processes that point dorsad ( Fig. 8 C). See Z. zumbadoi with similar parameres ( Fig. 9 E).

Other male characters. Body length 1.3 mm. Head. Eye bridge 5–6 ommatidia long dorsally. Scape length 1.5 × pedicel length. With 16–20 flagellomeres, nodes subglobular. Fourth flagellomere ( Fig. 8 B): neck length 0.3 × node length. Palpus with 3–4 segments. Terminalia. Posterior margin of tergite IX concave medially. Gonocoxites ( Fig. 8 A): ventral emargination large, broadly V-shaped. Gonostylus evenly curved, excavated dorsomedially, strongly tapered toward apex ( Fig. 8 A). Ejaculatory apodeme longer than parameres ( Fig. 8 A, apex of apodeme not shown in Fig. 8 C). Parameres ( Fig. 8 C): basal portion subtrapezoid, apicomedial portion narrower than in other Zadbimyia , twice as long as wide.

Etymology. The name minima is a Latin adjective meaning the smallest, in reference to the body size.

Types. Holotype. Male, Costa Rica, San José province, Moravia, Zurquí de Moravia, 1600 m, 18 Nov. 2012, mercury vapor light trap, ZADBI Project (ZADBI #216, INBio #105405). Paratype. Male, same locality as the holotype, 26 July–2 Aug. 2013, emergence trap over dry branches, ZADBI project (ZADBI #981, INBio #107500).

Figures

FIGURE 8. Zadbimyia minima, male. A: terminalia, ventral. B: fourth flagellomere, lateral. C: ejaculatory apodeme and parameres, ventral. Scale 0.05 mm.

FIGURE 9. Zadbimyia zumbadoi, male. A: gonostylus, ventral. B: ninth tergite, dorsal. C: fourth flagellomere, lateral. D: terminalia, ventral. E: ejaculatory apodeme and parameres, ventral. Scale 0.05 mm.