Homoneura (Homoneura) caloptera Kertesz 1915
Creators: name: Shi, Li
name: Yang, Ding
Publisher: name: Zenodo
Year: 2014
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Diptera
Lauxaniidae
Homoneura
Homoneura caloptera

description: Homoneura (Homoneura) caloptera (Kertész, 1915)
(Figs 49 –59)
Lauxania caloptera Kertész, 1915: 519. Type locality: China (Taiwan). Syntypes male and female in HNHM. Homoneura (Homoneura) caloptera: Malloch, 1929: 53. Shewell in Delfinado & Hardy, 1977: 201.
Diagnosis. Frons with a pair of brown stripes, extending from anterior margin to vertex. Face with a pair of short brown stripe extending from base of antenna to inner margin of parafacial; parafacial with sparse silvery white pruinosity. Antennal 1st flagellomere blackish brown on apical 1/2–2/3, arista with ray short plumose. A brown triangular spot present between base of antenna and eye. Palpus black on apical 1/2. Mesonotum with a pair of brown medial stripes between dc rows, gray area present between two medial stripes; two lateral stripes along supraalar setae. Scutellum yellow with a large blackish brown spot. Mid and hind legs with blackish brown joint between femur and tibia. Wing with a brown spot at tip of Sc and R1, slightly extending downward, but not confluent with brown cloud on r-m; a large subapical spot on R2+3 confluent with two round spots on R4+5; apical spot on R4+5 extending to costal margin, and confluent with preapical spot on M1; three brown spots present between r-m and apical spot on R4+5, upper margin of T-shaped spot on dm-cu confluent with two brown spots on R4+5. Abdominal tergites 3–6 each with posterior margin, male tergites 2–6 (female 2–7) each with a thin brown stripe-like spot and a pair of small brown lateral spots close to anterior margin.
Redescription. MALE. Body length 3.7–4.3 mm, wing length 3.6–3.8 mm. FEMALE. Body length 3.5–4.2 mm, wing length 3.8–4.3 mm.
Head (Figs 50, 51) yellow. Frons with a pair of brown stripes, extending from anterior margin to vertex, 1.2 times as long as wide and parallel-sided; ocellar triangle grayish brown; anterior or shorter than posterior or, oc longer than posterior or. Face dark yellow, with a pair of short brown stripe extending from base of antenna to inner margin of parafacial; parafacial with sparse silvery white pruinosity. Gena about 1/8 height of eye. Antenna yellow except for 1st flagellomere blackish brown on apical 1/2–2/3, 1.5 times longer than high; arista with ray short plumose, black except for brownish base, with longest ray as long as 3/4 height of 1st flagellomere. A brown triangular spot present between base of antenna and eye. Proboscis yellow; palpus black on apical 1/2.
Thorax (Figs 50, 52) grayish yellow. Mesonotum with a pair of brown medial stripes between dc rows, gray area present between two medial stripes; two lateral stripes along supraalar setae; 0+3 dc (1st post-sutural dc very close to transverse suture), acr in 6 rows and prsc shorter than 1st post-sutural dc. Scutellum yellow with a large blackish brown spot. Legs yellow, except mid and hind legs with blackish brown joint between femur and tibia. Fore femur with 2–3 pv, 6 pd, and ctenidium with 11–12 short setae; fore tibia with 1 long preapical ad and 1 short apv. Mid femur with 4–5 a and 1 app; mid tibia with 1 strong preapical ad and 2 strong apv. Hind femur with 1 weak preapical ad and 2 av on apical 1/3; hind tibia with 1 preapical ad and 1 short apv. Wing (Fig.) with many brown spots and pale gray hind margin; a brown spot at tip of Sc and R1, slightly extending downward, but not confluent with brown cloud on r-m; a large subapical spot on R2+3 confluent with two round spots on R4+5; apical spot on R4+5 extending to costal margin, and confluent with preapical spot on M1; three brown spots present between r-m and apical spot on R4+5, upper margin of T-shaped spot on dm-cu confluent with two brown spots on R4+5; costa with 2nd (between R1 and R2+3), 3rd (between R2+3 and R4+5) and 4th (between R4+5 and M1) sections in proportion of 3.7:1.7:1; r-m before middle of discal cell; ultimate and penultimate sections of M 1 in proportion of 1:1.4; ultimate section of CuA1 about 1/8 of penultimate. Halter yellow.
Abdomen (Figs 49, 53) grayish yellow, tergites 3–6 each with posterior margin, male tergites 2–6 (female tergites 2–7) each with a thin brown stripe-like spot and a pair of small brown lateral spots close to anterior margin. Male genitalia (Figs 55–59): syntergosternite circular with a ventral bridge in anterior view; epandrium with four pairs of long dorsal setae; surstylus consisting of a broad process and a narrow finger-like process in lateral view; hypandrium short and broad H-shaped in ventral view; postgonite subuliform in ventral view, about 2/3 length of aedeagus; aedeagus slender with a small distal concavity, slightly constricted at middle in ventral view, very broaden and round apically in lateral view; aedeagal apodeme almost as long as aedeagus in lateral view.
Material examined. 1 ♂, 3 ♀ (USNM), CHINA, Formosa (Taiwan): Kankau, VI–IX. 1912, H. Sauter (det. J. R. Malloch); 1 ♂ (USNM), CHINA, Formosa (Taiwan): Kosempo, V. 1912, H. Sauter; 1 ♀ (USNM), CHINA, Formosa (Taiwan): Mizuho, 22. IV. 1932, L. Gressitt (A. L. Melander 1961 collection).
Distribution. China (Taiwan).
description: Published as part of Shi, Li & Yang, Ding, 2014, Supplements to species groups of the subgenus Homoneura in China (Diptera: Lauxaniidae: Homoneura), with descriptions of twenty new species, pp. 1-117 in Zootaxa 3890 (1) on pages 19-20, DOI: 10.11646/zootaxa.3890.1.1, http://zenodo.org/record/250637