Indomias
Creators: name: Y, R A M A M U Rt H
name: Ayri, Shaloo
Publisher: name: Zenodo
Year: 2010
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Curculionidae
Indomias

description: Key to the species of Indomias
1. Hind tibial apex without any dense, golden yellow hairs............................................................................................. 2
- Hind tibial apex with well developed, dense, golden yellow hairs............................................................................. 24
2. Elytra more or less strongly impressed on the declivity (fig.78, 79)............................................................................ 3
- Elytra not at all impressed on the declivity (fig. 80, 81) ............................................................................................ 10
3. Elytra with the outline of its posterior declivity either straight or slightly convex but never sinuate (fig. 82, 83)...... 4
- Elytra with the outline of its posterior declivity distinctly sinuate (fig. 78)................................................................. 5
4. Antennae with first and second funicle segments equal in size (fig. 70). Elytra with the apex of its posterior declivity not having any erect, elongate scales; with a whitish, sutural stripe; and a broad, yellow, discal stripe extending from prothorax on to the intervals 5 and 6. Male genitalia with aedeagus having its apophyses 0.75x as long as the median lobe (figs. 216–217), female genitalia with the ratio of length of basal plate to that of shaft 1:3.2 (fig. 159) ............... ....................................................................................................................................................... perroteti (Boheman)
- Antennae with first funicle segment 1.25x as long as the second (fig. 58). Elytra with the apex of its posterior declivity having distinct, erect, elongate scales. Male genitalia with aedeagus having its apophyses only 0.43x as long as the median lobe (fig. 201–202), female genitalia with the ratio of length of basal plate to that of shaft 1:4.5 .............. ......................................................................................................................................................... hispidus (Marshall)
5. Antennae with first funicle segment as long as or only slightly longer (1.1x) than the second (figs. 63, 72) ............. 6
- Antennae with first funicle segment at least 1.4x as long as the second (figs. 69, 74) ................................................ 9
6. Elytra with their apices rounded ................................................................................................................................... 7
- Elytra with their apices either distinctly mucronate or pointed (fig. 78, 79)................................................................ 8
7. Scrobes 0.87x as long as rostrum, head 1.1x as long as rostrum; prothorax with upper surface having shallow, scattered punctations, their interspaces tuberculate; female genitalia with spiculum ventrale having its basal plate 1.5x as long as broad (fig. 161), spermatheca with nodulus bulbous, having a cylindrical projection (fig. 147) ...................... .......................................................................................................................................................... mayarami sp. nov.
- Scrobes only 0.55x as long as rostrum, head as long as rostrum; prothorax with upper surface having coarse punctations, their interspaces obscurely granulate; elytra with third, fourth and fifth intervals impressed at declivity; male genitalia with aedeagus having length: breadth ratio 10:1 (fig. 222–223), spiculum gastrale with shaft as long as the median lobe (fig. 176).................................................................................................................... ajaykumari sp. nov.
8. Elytral vestiture with predominant scales ovate, with 5–6 ridges (fig. 126); male genitalia with median lobe having length: breadth ratio 5.5:1 (figs. 225–226), tegmen with dorsal piece 5x as broad as its basal piece, manubrium very short, only 0.31x as long as the median lobe (fig. 227); female genitalia having its spiculum ventrale with ratio of length of basal plate to that of shaft 1:4.8 (fig. 156)......................................................................... mangalai sp. nov.
- Elytral vestiture with predominant scales ovate, but with patches of granulated areas; male genitalia with median lobe having length: breadth ratio 8.5:1 (figs. 207–208), tegmen with dorsal piece only 2.5x as broad as its basal piece, manubrium 0.52x as long as the median lobe, its apex broadened and subconical (fig. 209); female genitalia with spermatheca having its proximal arm 3x as broad and 1.3x as long as the distal arm (fig. 140), spiculum ventrale with ratio of length of basal plate to that of shaft 1:4.3 (fig. 150)..................................... acutipennis (Boheman)
9. Rostrum with the anterior margin 0.85x as broad as the posterior margin; prothorax with anterior margin 0.62x as broad as posterior margin; male genitalia with aedeagus having its apophyses 0.44x as long as the median lobe (fig. 240–241), tegmen with dorsal piece 2.5x as broad as its basal piece (fig. 242), spiculum gastrale with its shaft 0.88x as long as the median lobe (fig. 182) ....................................................................................... sharanagoudai sp. nov.
- Rostrum with the anterior margin only 0.54x as broad as the posterior margin; prothorax with anterior margin 0.83x as broad as posterior margin; male genitalia with aedeagus having its apophyses 0.63x as long as the median lobe (figs. 234–235), tegmen with dorsal piece 5x as broad as its basal piece (fig. 236), spiculum gastrale with its shaft 1.06x as long as the median lobe (fig. 179) ..................................................................................... kriparami sp. nov.
10. Elytra with basal margin only slightly raised, external angle obtuse (Fig. 80, 81) .................................................... 11
- Elytra with basal margin strongly raised, external angle perpendicular or acute (Fig. 84, 85) .................................. 12
11. Head as long as rostrum, antennae with first funicle segment only 0.85x as long as the second (fig. 62), rostrum 1.1x as broad as long; elytra with their apices mucronate in both sexes, interval three distinctly raised over two at the posterior declivity near apex; male genitalia having tegmen with its dorsal piece very long, 0.2x as long as the manubrium, and 3x as broad as the basal piece (fig. 215)...................................................................... prasinus (Boheman)
- Head 1.1x as long as rostrum, antennae with first funicle segment 1.1x as long as the second (fig. 60), rostrum as broad as long, with scrobes much longer, 0.8x as long as rostrum; elytra with their apices scarcely or not mucronate, stria with large and deep punctations, intervals three and five 1.33x as broad as others and more raised; male genitalia with tegmen having its dorsal and basal piece equal, length: breadth ratio of median lobe 5.3:1 (figs. 219– 220)............................ ........................................................................................................................ lividus (Marshall)
12. Rostrum strongly impressed at the middle dorsally (Fig. 16, 22, 37, 39)................................................................... 13
- Rostrum plain dorsally or at the most very shallowly impressed at the middle (Fig. 20) .......................................... 17
13. Antennae with first funicle segment either shorter or only slightly longer (1.1:1) than second; elytra with intervals four, five and six not impressed on their posterior declivity....................................................................................... 14
- Antennae with first funicle segment at least 1.3–1.5x as long as the second; elytra with intervals four, five and six either slightly or deeply impressed on their posterior declivity.................................................................................. 15
14. Prothorax as long as broad, upper surface with shallow, confluent punctations; elytra with intervals coriaceous, humeral fold much less developed, their apices mucronate in both sexes, vestiture with the less predominant scales oval, bluish orange with bifurcated ridges (fig. 98); male genitalia with aedeagus having the length: breadth ratio of median lobe 7:1, apophyses 0.66x as long as the median lobe (figs. 204–205), tegmen with parameres very long and 0.33x as long as the manubrium (fig. 206) .................................................................................. praeteritus (Marshall)
- Prothorax 1.06x as broad as long, upper surface rugosely punctate with interspaces granulate; elytra with their apices rounded, humeral fold prominent, vestiture with the less predominant scales elongate, their inner core opaque and granulated with four ridges (fig. 123); male genitalia with aedeagus having the length: breadth ratio of median lobe 6:1, apophyses only 0.42x as long as the median lobe (figs. 237–238), spiculum gastrale with the apex of its shaft clefted (fig. 180); venter with segments one and two having long, fine and recumbent setae ... premlali sp. nov.
15. Elytra with their apices rounded, vestiture with the predominant scales circular, reddish brown, with patches of granulated areas (fig. 116), humeral fold small and not projecting; male genitalia with tegmen having its dorsal piece 3x as broad as the basal piece, manubrium with apex enlarged and rounded (fig. 230) ............... ramakrishnani sp. nov.
- Elytra with their apices either distinctly mucronate or at least separately pointed, vestiture with the predominant scales either elongate or subrectangular, but invariably with ridges .......................................................................... 16
16. Head as long as rostrum, rostrum as long as broad, median furrow club shaped, ending in a narrow, faint line before reaching the vertex; elytral vestiture with the predominant scales curved, elongate, reddish brown with a short pedicel, their inner core opaque with 2–4 ridges (fig. 114). Female genitalia with spiculum ventrale having its basal plate spatulate and slighlty longer than broad (1.1:1) (fig. 155).............................................................. rajendrani sp. nov.
- Head only 0.8x as long as rostrum, rostrum 1.05x as long as broad, median furrow short, broad and oval; elytral vestiture with the predominant scales subrectangular to subovate, yellow, with 9–10 ridges (fig. 118); male genitalia with aedeagus having the length: breadth ratio of median lobe 9:1, apophyses 0.77x as long as the median lobe (figs. 231–232), tegmen with dorsal piece 7x as broad as basal piece (fig. 233)................................. maicykuttyae sp. nov.
17. General colour always characterized by a bright yellow, powdery vestiture; elytra with apices scarcely mucronate in male and with a short mucro in female; rostrum with lateral carinae gradually convergent behind; legs with second joint of tarsi bearing at least a few scales.................................................................................. sulphuratus (Marshall)
- General colour never characterized by a yellow vestiture, either grey or green or metallic green; elytral with apices rounded in male, either pointed separately or scarcely mucronate or with well defined mucro in female ................ 18
18. Antennae with first funicle segment distinctly longer than second (1.3 to 1.5:1) (Fig. 57, 65) ................................. 19
- Antennae with first funicle segment either equal to or only slightly longer than the second (1.1:1) (Fig. 53, 54, 55, 56, 76) ......................................................................................................................................................................... 20
19. Head with nine distinct rows of elongate, curved scales, slightly shorter than rostrum (1:1.1); elytral vestiture with the predominant scales elongate, reddish brown with their base truncate and apex rounded, with 4–5 ridges (fig. 111); female genitalia with spermatheca having nodulus rounded (fig. 145), spiculum ventrale with the basal plate laminate, apical half subconical and basal half trapezoidal (fig. 149).............................................. marshalli sp. nov.
- Head with a faint, broad, transparent impression behind the eyes, vertex with a median fovea, elytra with disk as far as the fourth stria covered mainly with black vestiture, first interval somewhat raised at apex, elytral vestiture with predominant scales subcircular, light brown, with surface irregularly impressed (fig. 94). Male genitalia with manubrium very short, only 0.17x as long as the median lobe (fig. 200) ................................................ beesoni (Marshall)
20. Elytra with humeral fold only slightly developed, its longitudinal curvature less convex or almost flat, deepest near the base and becoming abruptly steeper towards the apex, ratio of length of elytra from basal margin to the posterior declivity and from the posterior declivity to apex 4:1; head 1.1x as long as rostrum; male genitalia with aedeagus having its length: breadth ratio of median lobe 9:1 (figs. 192–193), tegmen with manubrium only 0.33x as long as the median lobe, bent at apex (fig. 194), spiculum gastrale with its shaft only 0.66x as long as the median lobe (fig. 166) ............................................................................................................................................... decipiens (Marshall)
- Elytra with the humeral fold prominent, its longitudinal curvature either moderately or much convex, deepest near the middle and gradually sloping behind, male genitalia with tegmen having its manubrium never less than 0.5x as long as the median lobe, and never bent at apex, spiculum gastrale with shaft at least equal to slightly longer than median lobe ................................................................................................................................................................ 21
21. Elytra with intervals five and six with an impression at base; prothorax with a uniformly broad median stria, rounded at both ends, and running in the posterior two thirds; male genitalia with aedeagus having the length: breadth ratio of median lobe 10:1, apophyses 0.85x as long as the median lobe, endophallus with a sclerotized patch (figs. 252–253) ..................................................................................................................................................... yercaudensis sp. nov.
- Elytra with intervals five and six without any impression at base; prothorax without any median stria; male genitalia with aedeagus having its apophyses only 0.5–0.6x as long as the median lobe, endophallus never with a sclerotized
patch ............................................................................................................................................................................ 22 22.General vestiture metallic or bluish green, elytra with a yellow patch at the base and at the apex of intervals four and five, with inflexed margins of prothorax and elytra with yellow powdering, elytral vestiture with the scales having pedicel (figs. 89–91); male genitalia with tegmen having its dorsal piece 7x as broad as the basal piece and 0.44x as long as the median lobe (fig. 197); female genitalia with spermatheca having its proximal arm without any distinction between nodulus and ramus, distal arm almost parallel to the proximal arm, and the angle between them steeply acute (fig. 139) .................................................................................................................................... frater (Marshall)
- General vestiture pale green or grey, but never metallic green; elytra without any yellow patch at the base of intervals; elytral vestiture with scales devoid of pedicel; female genitalia with spermatheca having its nodulus and ramus distinct, distal arm never parallel to the proximal arm and angle between them obtuse ............................................ 23
23. Elytra with vestiture uniform pale green, without any pollinose, lateral stripe, its longitudinal curvature much convex, deepest near the middle, gradually sloping behind, ratio of length of elytra from basal margin to the posterior declivity and from posterior declivity to the apex 0.9:1, apices rounded in male, pointed in female; female genitalia with spermatheca having its nodulus globular, spiculum ventrale with the ratio of length of basal plate to that of shaft 1:3; male genitalia with aedeagus having the length: breadth ratio of median lobe 5.8:1, tegmen with dorsal piece 3x as broad as the basal piece .................................................................................................................. cretaceus (Faust)
- Elytra with an ochreous yellow, lateral stripe on intervals six and seven, extending inwards at the base and near apex as far as interval four and with a similar stripe on the prothorax, its longitudinal curvature moderately convex, their apices pointed in male and mucronate in female; female genitalia with spermatheca having nodulus small and notched, spiculum ventrale with the ratio of length of basal plate to that of shaft 1:5 (fig. 158); male genitalia with aedeagus having the length: breadth ratio of median lobe 9:1 (figs. 210–211), tegmen with dorsal piece 8x as broad as basal piece (fig. 212)........................................................................................................... anamalainus (Marshall)
24. General body size with length at least 3x or more as the breadth .............................................................................. 25
- General body size with length: breadth ratio never more than 3:1 ............................................................................. 26
25. Rostrum with lateral carinae extending posteriorly beyond the anterior margins of eyes, at least to a distance of 0.25x the length of an eye; prothorax only 1.01x as broad as long, without any median stria; antennae with first funicle segment only 1.25x as long as the second (fig. 75); male genitalia with aedeagus having its apophyses 0.66x as long as the median lobe (figs. 249–250), spiculum gastrale with its shaft truncate at apex (fig. 184) ... dubeyi sp. nov.
- Rostrum with lateral carinae not extending beyond the anterior margin of eyes; prothorax at least 1.25x as broad as long, and with a deep, median stria in it’s the posterior two thirds; antennae with first funicle segment at least 1.43x as long as the second (fig. 64); female genitalia with spiculum ventrale having its basal plate ovate, only 0.2x as long as its shaft and 1.5x as long as broad (fig. 160) ................................................................................. albizziae sp. nov.
26. Rostrum as long as broad, shallowly impressed dorsally, a juxta marginal carina runs from its apex to just above the eye; prothorax longer than broad and sharply constricted at apex, its greatest breadth almost equal to that of elytra, with a fine median stria which does not reach apex ............................................................................. kraatzi (Heller)
- Rostrum 1.2x as broad as long, deeply impressed dorsally, without any juxta marginal carina; prothorax 1.2x as broad as long, without any constriction at its apex, its greatest breadth never equal to that of elytra, with a deep median stria which is rounded posteriorly and straight anteriorly, restricted to posterior one thirds.. menoni sp. nov.
description: Published as part of Y, R A M A M U Rt H & Ayri, Shaloo, 2010, Revision of the genus Indomias Marshall (Coleoptera, Curculionidae, Entiminae, Tanymecini) from India, pp. 1-49 in Zootaxa 2357 on pages 5-7, DOI: 10.5281/zenodo.193586