Inthaeron longipes (Gravely, 1931) comb. nov.

Figs 10–11

Sphingius longipes Gravely, 1931: 270, fig. 19A–B; Majumder & Tikader, 1991: 148, figs 311–314.

Type material. Syntype Ƌ from INDIA: Kerala: Palakkad: Pattambi (formerly in Malabar district): beside the traveller’s bungalow, leg. F.H. Gravely, 24–28 May 1930, deposited in NZC-ZSI (no register number), examined (Fig. 10E) .

Justification of the transfer. Detailed examination of the syntype of S. longipes Gravely, 1931 revealed that it has the typical somatic morphology for Cithaeronidae Simon, 1893 (Fig. 10 A–D) and the diagnostic features of the monotypic cithaeronid genus Inthaeron Platnick, 1991, as illustrated for Inthaeron rossi Platnick, 1991, the type species of the genus: highly coiled embolus, and embolus with a fringed flange (compare Fig. 11 A–C with Platnick & Gajbe 1994: figs 1–3). Based on these observations, we propose to transfer S. longipes to Inthaeron .

Diagnosis. The male of I. longipes comb. nov. can be separated from the male of I. rossi by the following combination of features: broad retrolateral tibial apophysis (narrow in I. rossi), fringed flange with a prolateral twist (fringed flange with retrolateral twist in I. rossi) and absence of a median apophysis ( I. rossi with highly reduced median apophysis) (compare Figs 10F and 11 A–C with Platnick & Gajbe 1994: figs 1–3). Females can be separated from the females of I. rossi by an anteriorly oriented long, median tongue-like plate (Fig. 10F), which is absent in the latter species (Gravely 1931; Platnick 1991: fig. 21).

Note. With the transfer of S. longipes, the total number of known Inthaeron species is increased to two, I. rossi and I. longipes comb. nov.; both species are known from both sexes.

Remarks. The ZSI collection has one glass bottle for this species labelled as “ Type ” (1513/18), containing a male specimen in good condition, with intact pedipalps. Gravely (1931) also described the female of this species (Fig. 10F), but we could not trace any female specimen in the collection.