Luzonomyza honghensis Li & Yang, 2021

Li 1, Wenliang, Chen 1, Xulong, Feng 1, Keli, Zhao 2, Shengjuan & Yang 3, Ding, 2021, Four new species of the genus Luzonomyza Malloch (Diptera, Lauxaniidae) from China, ZooKeys 1074, pp. 43-59 : 43

Luzonomyza honghensis Li & Yang sp. nov.

Figures 9-12 , 13-16

Type material.

Holotype. ♂ (CAUC), China, Yunnan Province, Honghe Hani and Yi Autonomous Prefecture, Qimaba township; 22°48'33"N, 102°14'31"E; 1010 m; 11 Jun 2013; Jinying Yang leg.

Etymology.

The specific name refers to the holotype locality, Honghe Prefecture. It is a noun in genitive case.

Diagnosis.

Frons with a brown median stripe extending from anterior margin to ocellar triangle; gena with broad brown stripe. Acrostichal setulae in 4 rows. Epandrium with a pair of dorsoapical processes in lateral view and a pair of lateral processes on anterior margin; hypandrium, gonopod, and phallus confluent together. Phallus with 2 pairs of lateral processes and a pair of median processes apically. Phallapodeme longer than phallus.

Description.

Male. Body length 3.7 mm.

Head (Fig. 9 ) yellow. Face with an angular hump on middle of basal half; parafacial with sparse short hairs, with a black spot between eye and antennal bases, and with 5 long setae extending to gena. Frons ~1.3 × longer than wide and parallel-sided, with a brown median stripe extending from anterior margin to ocellar triangle, and frons with short setulae on anterior half; ocellar triangle grayish black, ocellar setae very small, hair-like; fronto-orbital setae missing. Gena with broad brown stripe, ~1/2 height of eye. Antenna yellow, first flagellomere and arista missing. Proboscis yellow with white and black setulae, and with a pair of irregular lateral spots apically; palpus yellow with black setulae.

Thorax (Fig. 11 ) brownish yellow, with grayish-white pruinescence. Mesonotum with 4 brown stripes extending to tip of scutellum. 0+3 dorsocentral setae, anteriormost dorsocentral seta away from scutal suture; acrostichal setulae in 4 rows; a pair of prescutellar setae, all setae on thorax missing. Dorsal margin of anepisternum and katepisternum pale yellow. One anepisternal seta, 1 katepisternal seta. Legs yellow, fore tarsomeres and hind legs missing, mid tarsomeres 4 and 5 brown. Fore femur with 7 posterodorsal setae and 7 posteroventral setae, fore tibia with a long dorsal preapical seta and a short apicoventral seta. Mid tibia with a strong dorsal preapical seta and an apicoventral seta. Hind femur with a weak preapical anterodorsal seta; hind tibia with a long dorsal preapical seta and a short apicoventral seta. Wing pale brown along anterior margin, a brown spot on each of the crossveins r-m and dm-cu; subcostal cell brown but pale brown apically. Haltere pale yellow.

Abdomen (Fig. 12 ) yellow, tergites 2-6 blackish brown on posterior margin but yellow laterally. Male genitalia (Figs 13-16 ): syntergosternite confluent with epandrium, broad dorsally and narrow ventrally. Epandrium with a pair of long black conical dorsoapical processes in lateral view, with a pair of lateral processes on anterior margin. Surstylus situated in ventral angle and small, ventral margin with setae, hypandrium V-shaped, disconnected in the middle and with 2 pairs of inner processes apically. Gonopod short and thick, extending to both sides; hypandrium, gonopod and phallus confluent together. Phallus with 2 pairs of different lateral processes and a pair of median processes apically; median processes claviform in lateral view. Phallus deeply concave apically, phallapodeme claviform, longer than phallus.

Female. Unknown.

Remarks.

This new species is very similar to Luzonomyza sinica from China (Hainan) and Thailand in the body markings, wing type, and surstylus, but it can be separated from the latter by the brown mid tarsomeres 4 and 5 and the 2 pairs of apical processes of the phallus. In Luzonomyza sinica , the mid tarsi are yellow and the phallus is not bifurcated apically.

Distribution.

China (Yunnan).

Figures

Figures 9 - 12. Luzonomyza honghensis sp. nov. Male 9 head, anterior view 10 habitus, lateral view 11 thorax, dorsal view 12 abdomen, dorsal view.

Figures 13 - 16. Luzonomyza honghensis sp. nov. Male 13 syntergosternite and epandrium, lateral view 14 epandrial complex, posterior view 15 phallic complex, ventral view 16 phallic complex, lateral view. Scale bar: 0.5 mm.