Strattis, Pascoe, 1883

Devi, Salam Rita, Ray, D. C. & Ramamurthy, V. V., 2016, Descriptions of three new species of Strattis Pascoe, 1883 (Coleoptera: Curculionidae: Cryptorhynchinae) from the Indian subcontinent, Zootaxa 4085 (2), pp. 199-218 : 200-201

Key to the species of Strattis

1. Antennae with article 1 of funicle longer than article 2 of funicle ( Fig. 90 )........................................2

- Antennae with article 1 of funicle shorter than or as long as article 2 of funicle ( Figs 50 , 101 )......................... 3

2. Elytra with strial punctures shallow; with small, well defined, dusty white spot medially in each stria. Pronotum distinctly convex above. Body size small 3–4 mm........................................................ S. biguttatus Pascoe

- Elytra with strial punctures deep, without any median white spot, instead with greenish brown scales basally on striae 1 to 3 and interstriae 2 to 4 ( Figs 7 , 21 ). Pronotum feebly convex above ( Fig. 9 ). Body size large 4–7 mm....................................................................................................... S. srilankaiensis sp. nov.

3. Pronotum with whitish scales, variegated with two pairs of blackish spots, one apical, another median, and with distinct patches basally ( Figs 1 , 13). Elytra with dusty greyish scales beyond middle, and variegated with whitish scales apically ( Fig. 1 ). Ventrites 3 to 5 with blackish scales, except laterally on each side (Fig. 19). Body size 3–6 mm...... S. pascoei sp. nov.

- Pronotum without any whitish scales and blackish spots (Fig. 14). Elytra without any dusty greyish and whitish scales as above ( Figs 4 , 20 ). Body size 5–6 mm.......................................................................... 4

4. Elytra with indistinct, obsolete, dirty white patches, assuming a band like form towards the posterior part or the entire apical third more or less whitish................................................................. S. vestigialis Pascoe

- Elytra with X-shaped markings of whitish scales over the dusty greyish scales, and two triangular patches of blackish scales medially ( Figs 4 , 20 )................................................................... S. maculatus sp. nov.

Figures

FIGURES 89 – 99. Line illustration of S. biguttatus Pascoe: Fig. 89. Pronotum, Fig. 90. Antennae, Fig. 91. Adult, ventral view, Figs 92 – 93. Aedeagus, dorsal and lateral, Fig. 94. Tegmen, Fig. 95. Spiculum gastrale, Fig. 96. Spermatheca, Fig. 97. Spiculum ventrale, Fig. 98. Tergite VII, Fig. 99. Tergite VIII.

FIGURES 49 – 57. Line illustration of S. pascoei sp. nov.: Fig. 49. Pronotum, Fig. 50. Antennae, Fig. 51. Basal portion of tibae, Fig. 52 Tibial apex, Fig. 53. Spermatheca, Fig. 54. Stylus, Fig. 55. Spiculum ventrale, Fig. 56. Tergite VII, Fig. 57. Tergite VIII.

FIGURES 100 – 112. Line illustration of S. vestigialis Pascoe: Fig. 100. Pronotum, Fig. 101. Antennae, Fig. 102. Adult, ventral view, Figs 103 – 104. Rostrum, dorsal and ventral, Figs 105 – 106. Aedeagus, dorsal and lateral, Fig. 107. Tegmen, Fig. 108. Spiculum gastrale, Fig. 109. Tergite VII, Fig. 110. Spermatheca, Fig. 111. Spiculum ventrale, Fig. 112. Tergite VII, Fig. 113. Tergite VIII.

FIGURES 1 – 9. Habitus (dorsal, ventral and lateral view) of Strattis Pascoe: Figs 1 – 3. S. pascoei sp. nov., Figs 4 – 6. S. maculatus sp. nov., Figs 7 – 9. S. srilankaiensis sp. nov.

FIGURES 20 – 21. Elytra: Fig. 20. S. maculatus sp. nov., Fig. 21. S. srilankaiensis sp. nov.