Review of the filter-feeding caddisfly subfamily Macronematinae (Trichoptera: Hydropsychidae) in tropical Southeast Asia
Uy, Christine Jewel C.
Malicky, Hans
Bae, Yeon Jae
Raffles Bulletin of Zoology
2018
2018-11-15
66
664
703
Malicky & Prommi, 2009
Malicky & Prommi
2009
[196,717,1399,1423]
Insecta
Hydropsychidae
Macrostemum
Animalia
Trichoptera
21
685
Arthropoda
species
seba
( Figs. 154–159) Macrostemum seba Malicky & Prommi(in Malicky, 2009): 47 [ Holotypemale; Thailand; HMPC.]
Diagnosis. Male.Antennae 20 mmin length. Antennal flagellum first few segments darker brown then lighter throughout with darker striations. Forewing 10 mmand hind wing 6 mmin length. Mesoscutum and mesoscutellum without evident markings. Tibial spurs 2.4.4. Male genitalia.Inferior appendages two-segmented, harpago blunt towards the apex ( Fig. 156). In lateral view, phallus with spine-like structure at anterior portion of apex ( Fig. 158). In dorsal view, phallus with lobular tongue in anterior part of apex ( Fig. 159). In lateral view, segment X with broad apex ( Fig. 156), forming U-shape at middle of two lobes in dorsal view ( Fig. 157).
Type material examined. Holotype. Thailand:male, Phangnga Province, Sriphanga National Park, coll. T. Prommi, 7 August 2004(HMPC). Paratypes. Thailand: 4 males, Phangnga Province, Sriphanga National Park, coll. T. Prommi, 7 August 2004(HMPC); 6 males, Ranong Province, Klongbangmunstream, coll. T. Prommi, 8 October20014 (HMPC). Additional material examined. Laos: 1 male, Boli, Kham Xai Province, coll. V. Kuban, 1–18 May 2001(HMPC).
Distribution. Thailand, Laos.
Remarks.The phallus resembles that of M. dionedorsally. However, the phallus of M. sebapossesses both dorsal and ventral tongues, whereas that of M. dionehas only one ( Fig. 159). The original description of the species included drawings of two typesof genitalia and wing patterns. The genitalia drawings included here are based on both the holotypeand paratypespecimens, and both wing pattern variations were drawn as well ( Figs. 154–159). No female specimens were available for examination.
[339,535,1494,1516]
HMPC
Thailand
Thailand
21
685
1
holotype
2004-08-07
T. Prommi
Thailand
Sriphanga National Park
21
685
1
Phangnga
holotype
2004-08-07
T. Prommi
Thailand
Sriphanga National Park
21
685
4
4
Phangnga
paratype
Klongbangmun & T. Prommi & October
Thailand
Ranong Province
21
685
6
6
Ranong
paratype
2001-05-01
2001-05-18
2001-05-01
Boli & V. Kuban
Laos
Kham Xai Province
21
685
1
1