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Aenictus kodagura sp. nov., holotype, worker: (A) Head in full-face view, (B) Body in dorsal view, (C) Petiole and postpetiole, (D) Body in profile view, (E) Dentition on the mandibles.

Aenictus kodagura sp. nov., holotype, worker: (A) Head in full-face view, (B) Body in dorsal view, (C) Petiole and postpetiole, (D) Body in profile view, (E) Dentition on the mandibles.

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A new species of the genus Aenictus Shuckard, 1840 is described from the Western Ghats region, India, under the name A. kodagura Shakur & Bagchi, sp. nov. based on the worker caste. The new species belongs to the Aenictus pachycerus species group and shares affinities with A. sirenicus Yamane & Wang, 2015, in having a smooth head, smooth pronotum a...

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Context 1
... Fig. 2 Head: Head in full-face view slightly longer than broad (CI -83.33) with posterior and lateral margins weakly convex. Eye and typhlatta spots (a pair of large, pale patches located on the posterolateral portion of the head that contrast sharply with the remainder of the head) absent. Antenna 10-segmented, scape long (SI -98.18), ...
Context 2
... species of the A. pachycerus group are known from India: A. aitkenii (Forel, 1901), A. dentatus (Forel, 1911), A. kadalarensis, A. kodaguensis (Sahoo et al., 2024), A. pachycerus (Smith, 1858), and A. punensis (Forel, 1901). Aenictus kodagura can be distinguished from A. aitkenii, A. dentatus, A. kodaguensis, and A. pachycerus in having a smooth head and pronotum while it is microreticulated in the others. ...
Context 3
... propodeum and cuboidal petiole; it can be distinguished from A. punensis in having a subpetiolar process. 2 Promesonotum in profile with clearly convex dorsal outline; propodeum placed lower than promesonotum (Fig. 7) (Fig. 8) Larger species (HW 0.75-0.78 mm); propodeum in profile with straight dorsal outline; longest pronotal hair ca. 0.15 mm (Fig. 24) (Chapman, 1963) 9 First gastral tergite superficially shagreened (Figs 25 and 26) 10 Scapes relatively short (SI < 115), masticatory margin of mandible with 5 denticles (Fig. 29) (Fig. 42) ........ pachycerus (Smith, F 1858) 16 Dorsocaudal propodeum in profile with protruding edge that is longer than maximum length of propodeal ...
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... propodeum in profile with straight dorsal outline; longest pronotal hair ca. 0.15 mm (Fig. 24) (Chapman, 1963) 9 First gastral tergite superficially shagreened (Figs 25 and 26) 10 Scapes relatively short (SI < 115), masticatory margin of mandible with 5 denticles (Fig. 29) (Fig. 42) ........ pachycerus (Smith, F 1858) 16 Dorsocaudal propodeum in profile with protruding edge that is longer than maximum length of propodeal spiracle, very thin, acute, and far overhanging declivitous face; antennal scape longer (SI 143-152) (Fig. 43) (Malay Peninsula, Sumatra, Thailand, China, Vietnam, Borneo and Java) ........................ dentatus (Forel 1911) -Edge of dorsocaudal propodeum not longer than maximum spiracle width and not overhanging the declivitous face; antennal scape shorter (SI 110 or less than) (Fig. 44) ...
Context 5
... placed lower than promesonotum (Fig. 7) (Fig. 8) Larger species (HW 0.75-0.78 mm); propodeum in profile with straight dorsal outline; longest pronotal hair ca. 0.15 mm (Fig. 24) (Chapman, 1963) 9 First gastral tergite superficially shagreened (Figs 25 and 26) 10 Scapes relatively short (SI < 115), masticatory margin of mandible with 5 denticles (Fig. 29) (Fig. 42) ........ pachycerus (Smith, F 1858) 16 Dorsocaudal propodeum in profile with protruding edge that is longer than maximum length of propodeal spiracle, very thin, acute, and far overhanging declivitous face; antennal scape longer (SI 143-152) (Fig. 43) (Malay Peninsula, Sumatra, Thailand, China, Vietnam, Borneo and Java) ...
Context 6
... than promesonotum (Fig. 7) (Fig. 8) Larger species (HW 0.75-0.78 mm); propodeum in profile with straight dorsal outline; longest pronotal hair ca. 0.15 mm (Fig. 24) (Chapman, 1963) 9 First gastral tergite superficially shagreened (Figs 25 and 26) 10 Scapes relatively short (SI < 115), masticatory margin of mandible with 5 denticles (Fig. 29) (Fig. 42) ........ pachycerus (Smith, F 1858) 16 Dorsocaudal propodeum in profile with protruding edge that is longer than maximum length of propodeal spiracle, very thin, acute, and far overhanging declivitous face; antennal scape longer (SI 143-152) (Fig. 43) (Malay Peninsula, Sumatra, Thailand, China, Vietnam, Borneo and Java) ...

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