Hydropsyche charon Malicky & Chantaramongkol 2000

Pandher, Manpreet S., Kaur, Simarjit, Parey, Sajad H. & Saini, Malkiat S., 2017, Review of genus Hydropsyche Pictet 1834 (Insecta: Trichoptera: Hydropsychidae) from India, Zootaxa 4365 (3), pp. 331-360 : 343

Hydropsyche charon Malicky & Chantaramongkol 2000

( Figs. 52–56 )

Hydropsyche charon Malicky & Chantaramongkol 2000 , 810

Redescription of adult male: Color in alcohol dark brown, antennae yellowish, covered with fine, scattered, fuscous pubescence. Length from tip of head to apices of folded forewings about 8.25 mm; maxillary palps each 2 mm long, 2nd segment longer than 3rd, 5th as long as 1st–4th segments together; labial palps each 0.90 mm long; antennae each about 8 mm long. Length of each forewing about 6.25 mm; each hind wing about 4 mm long.

Male genitalia ( Figs. 52–56 ): Abdominal segment IX longitudinally very short laterally, anterolaterally convex in lateral view; dorsomedian keel broad, triangular and granulose; posterolateral lobes on each side quadrate, unusually broad, setose, with setae interrupted by large gap from those on posterolateral slope of keel. Small depression visible on dorsal margin between segment IX and tergum X. Body of tergum X small, quadrangular in lateral and dorsal views; pair of apicoventral setose lobes digitate, directed posterad, rounded apically in lateral view; directed apicomesad in dorsal view; apicodorsal lobes fused, placed mesally in dorsal view; dorsal interlobular gap small between apicoventral setose lobes. Inferior appendages each long, basal segment about 2 times as long as apical segment, slightly dilated medially, broad at apex, almost straight in ventral view; apical segment small, broad, constricted preapically in ventral view. Phallic apparatus broad basally, abruptly angled subbasally, slender towards apex; endotheca with pair of short, broad, acute, dorsal spines fused basally near midlength and with pair of symmetrical spines subapicodorsally.

Material examined: INDIA: Uttarakhand: Diwalikhal , 2000 m, 10-vi-2009, 1 male, Pandher & Parey, NPC .

Diagnosis: This species is closely similar to Hydropsyche soinha Oláh & Johanson 2008 and H. keoda Oláh & Johanson 2008 (both from Vietnam). However, the strongly produced tergum X and the posteriorly rounded median keel of segment IX distinguish this species from allied ones.

Distribution: Bhutan; India: Uttarakhand.

Figures

FIGURES 52–61. Hydropsyche spp., male genitalia. 52–56, H. charon Malicky & Chantaramongkol: 52, left lateral; 53, dorsal; 54, right inferior appendage, ventral; 55, phallus, left lateral; 56, phallus, ventral. 57–61, H. homunculus Schmid: 57, left lateral; 58, dorsal; 59, right inferior appendage, ventral; 60, phallus, left lateral; 61, phallus, ventral.