Campylomyza convexa, Ham & Bae, 2025

Campylomyza convexa sp. nov.

Fig. 3 D – F View Figure 3

Type material examined.

Korea • 1 ♂ (slide no. HDS-505 ); Gyeonggi-do, Namyangju-si, Wabu-eup, Dosim-gil, Korea University’s farm to practice ( KUF); 2–8 Apr. 2017; D. Ham leg.; deposited in KU . Paratypes: Korea • 1 ♂ (slide no. HDS-504 ); same data and deposition as holotype • 2 ♂♂ (slides no. NIBRIN 0000857555 , NIBRIN 0000919405 ) KUF; 2–8 Apr. 2017; D. Ham leg.; deposited in NIBR .

Other material examined.

Korea • 4 ♂♂ (slides no. NIBRIN 0000992649 – NIBRIN 0000992652 ); KUF; 2–8 Apr. 2017; Y. J. Bae leg.; deposited in NIBR .

Diagnosis.

Campylomyza convexa sp. nov. is most similar to C. aemula (cf. Jaschhof and Jaschhof 2009: fig. 29 A – D), especially in having the rounded apical points on the tegmen, tapering posteriorly, the dorsal processes are broad basally, directed dorsolaterally with a strongly sclerotized triangular apex. However, C. convexa sp. nov. can be distinguished from C. aemula by following characteristics: 1) Gonostyli moderately convex apically, not excavated medially, broadly rounded apically, with small dorsomedial lobe (Fig. 3 E View Figure 3 , ↓ 8); 2) Apical points of tegmen parallel-sided to rounded apically, longer than C. aemula ( Jaschhof and Jaschhof 2009: 102) ; 3) Mesal points of tegmen longer and narrower than in C. aemula (Fig. 3 E View Figure 3 , ↓ 11); 4) Dorsal processes lacking sclerotized ridge, strongly sclerotized apically (Fig. 3 E View Figure 3 , ↓ 10).

Measurements.

Male adult ( holotype): Body length 1.417 mm. Wing length 1.639 mm. Hind leg coxa 0.105 mm; femur 0.555 mm; tibia 0.574 mm; tarsomere I 0.333 mm; tarsomere II 0.170 mm; tarsomere III 0.138 mm; tarsomere IV 0.082 mm; tarsomere V 0.065 mm.

Description.

Male adult ( holotype). Head. Postocular bristles seven. Antenna with 12 flagellomeres. Neck of fourth antennal flagellomeres shorter than node. Node with one complete and two incomplete crenulate whorls with sensory hairs, two incompletely collar-shaped sensilla distally. Palpus 4 - segmented; fourth segment longest. Thorax. Preepisternum with nine setae. Wing length to width ratio 2.24. AntC ending beyond R 4 + 5 but before reaching M 4; ApicR 1 3.82 × length of Rs. CuA separated. Tarsomere I longer than tarsomere II. Tarsomere I longer than tarsomere II. Claws sickle-shaped, slightly toothed; empodia as long as claws, slightly broaden apically; pubescent. Terminalia. Tg 9 tapered towards apex with eight fine setae. Ventral bridge of gonocoxites long, ventral emargination relatively short and broad, U-shaped, dorsal transverse bridge broad, extending far beyond ventrobasal margin. Ventromedial portion of gonocoxites broad, slightly pronounced (Fig. 3 D View Figure 3 , ↓ 7). Gonostyli curved anteroventrally, rounded apically, moderately convex apically with small dorsomedial lobe (Fig. 3 E View Figure 3 , ↓ 8); setae distributed evenly in ventral view, denser towards apex in dorsal view. On tegmen, apical points long, parallel-sided to rounded apically, not lamellate, sclerotized (Fig. 3 F View Figure 3 , ↓ 9); dorsal processes strongly sclerotized apically, directed dorsolaterally (Fig. 3 F View Figure 3 , ↓ 10); mesal points weakly sclerotized, faint apically, directed anteriorly (Fig. 3 F View Figure 3 , ↓ 11). Shoulders of tegmen inconspicuous. Transverse brace rib-shaped without extension (Fig. 3 F View Figure 3 , ↓ 12). Parameral apodeme sclerotized, long, slightly shorter than half of tegmen (Fig. 3 F View Figure 3 , ↓ 13). Ejaculatory apodeme of typical Campylomyza outline.

Etymology.

From the Latin word convexus, meaning ‘ a surface with rounded edges’, which refers to the rounded outline of the apex of the apical points on the tegmen.