32,906 research outputs found
Ochicanthon vazdemelloi Latha & Sabu, sp. nov.
No full textOchicanthon vazdemelloi Latha & Sabu sp. nov. (Figs. 61–65) Description. Body (Fig. 61) predominantly black. Dorsal surface of head glabrous, with annular punctures separated by intervals fairly equal to their diameter. Pronotum moderately convex in lateral view, outline at base almost in line with that of elytral suture; laterobasal paramarginal ridge absent. Pronotal punctations (Fig. 62) similar to that on head, but becoming sparser medially; setae almost indistinct, straight and recumbent. Elytra strongly convex, lacking tubercles, suture conspicuously raised, except on apical quarter; striae shallow, wide, consisting of chains of circular depressions joined by straight sulci (Fig. 62); interstriae moderately convex, uneven, covered with fine, sparse setiferous punctures arranged in two rows; background microsculpture smooth; setae stout, arcuate and semi-erect, but never scale-like; lateral ridge posteriorly extended to level of apex of second stria. Mesosternum impunctate, meso-metasternal line subangulate; metasternal shield coarsely punctate, except in the centre, which is smooth (Fig. 63). Pygidium rather uniformly covered with shallow annular setiferous punctures. Male with base of metafemur forming a distinct angle and base of metatibia slender and arcuate. Protrochanter with outer margin arcuate. Hind wings absent. Aedeagus as in Figs. 64–65. Measurements (mm; n = 5): TL = 4.3 –5.0; BW = 2.7– 3.2; PL = 1.3–1.7; PW = 2.3–2.7; EL = 2.4–2.7. Type material: Holotype (male, in NPC): “ India, Kerala, Palghat District, Silent Valley National Park, 2010 m, montane evergreen forest, dung baited pit fall trap, 5.vi. 2009, leg. Vinod, K.V.” Paratypes (4): Same data as holotype, 3 females in NPC, SJC and ZSI-Ca; “ India, Kerala”, 1 male in MHNG. Distribution and natural history. Southwest India ( upper montane cloud forests at Silent Valley in the South Western Ghats montane rain forest ecoregion). Etymology. Named in honor of Fernando Z. Vaz-de-Mello, Veracruz, Brazil, who renamed the genus in 2003. Diagnosis. Only two Indian Ochicanthon species, O. devagiriensis and O. vazdemelloi, have the elytral pubescence arranged in rows. Ochicanthon vazdemelloi can be readily distinguished from O. devagiriensis by its indistinct pronotal pubescence. See diagnosis under O. besucheti and O. devagiriensis.Published as part of Latha, Mathews, Cuccodoro, Giulio & Sabu, Thomas K., 2011, Taxonomy of the dung beetle genus Ochicanthon Vaz-de-Mello (Coleoptera: Scarabaeidae: Scarabaeinae) of the Indian subcontinent, with notes on distribution patterns and flightlessness, pp. 1-29 in Zootaxa 2745 on page 22, DOI: 10.5281/zenodo.27662
Onthophagus tnai Nithya & Sabu, new species
No full textOnthophagus tnai Nithya & Sabu, new species (Figs. 1–3) Description. Male (holotype). Body (Fig. 1) shiny black, head and pronotum dark coppery, antennae and tarsi red, body clothed with long yellow setae. Head. Broad, ocular lobes gently rounded laterally; clypeus truncate without sinuation; anterior margin reflexed. Head with backwardly produced, elevated lamina with emargination. Clypeus with large punctures laterally; close punctures on the lobes of emargination on head; middle smooth with sparse, fine punctures. Eyes small, moderately elliptic. Frontal carina absent (Fig. 2). Pronotum. Convex; bearing close punctures; with a small, smooth, shiny elongate patch in the middle of the dorsal surface. Front angles produced anteriorly, hind angles obtuse, base strongly rounded. Anterior side of the pronotum smooth with some punctures. Elytra. Black, shiny, finely striate; intervals flat, bearing setiferous punctures; elytron with 7 reddish-yellow patches, 1 at the shoulder, 1 near the middle of the outer margin, 3 at the apical angle, a pair near the base and the suture. Wings. Hind wings present. Ventral surface. Pygidium basally bordered; shiny; with moderately close, large punctures. Mesosternum and metasternum with scattered punctures except medially. Legs. Profemur unmodified; protibia elongate, quadridentate externally with serration between teeth; mesofemur and metafemur unmodified; mesotarsi and metatarsi as long as tibia. Male genetalia. Parameres angled relative to basal piece and pointed towards the apex (Fig. 3). Female. Unknown. Measurements (mm; n = 1: holotype). TL = 7.0, BW = 4.0, PL = 2.0 4, PW = 3.84, EL = 3.3. Paratypes (2 males): TL = 6.75–7.17, BW = 3.9–4.2, PL = 1.95–2.1, PW = 3.3–3.9, EL = 3.3–3.4. Type material. Holotype: (male, in ZSI- Ca): “ India, Kerala, Palghat, Silent valley National Park, Syrandri, 1000 m, evergreen forest, dung baited pit fall trap, 9.v. 2008, Vinod, K.V.” Paratypes (2): 1 male in NPC; “ India, Kerala, Panathady, 900 m, semi evergreen forest, dung baited pit fall trap, 3.xii. 2007, Shiju, T.R.”, 1 male in SJC; Same data as holotype. Distribution. India (South Western Ghats montane rain forests ecoregion). Etymology. This species is named in honor of the doyen of Indian entomology, Prof. T.N. Anathakrishnan (TNA), Chennai, India. Remarks. Onthophagus tnai has strong similarities to O. kchatriya in having black elytra with yellow markings, a pattern of yellow markings on the elytra, and the presence of a backwardly raised lamina on the head. But O. tnai differs from O. kchatriya in the presence of a punctate pronotum and the absence of horns on the head. Onthophagus tnai is similar to O. lemniscatus with a punctate pronotum and broadly truncate front margin of clypeus. It differs from O. lemniscatus in the presence of black elytra with yellow markings in contrast to yellow elytra with black markings, and the distribution pattern of black markings on the elytra and lack of horns on the head. Variation. The paratype collected from the same locality as the holotype does not vary in any significant way; the other paratype has two punctate gibbosities on the anterior side of the pronotum, which contrasts with the lack of punctate gibbosities in other two specimens.Published as part of Sathiandran, Nithya & Sabu, Thomas K., 2012, New species, new synonym, and redescription of Onthophagus (Coleoptera: Scarabaeidae: Scarabaeinae) from the Western Ghats, India, pp. 53-58 in Zootaxa 3526 on pages 54-56, DOI: 10.5281/zenodo.21336
A new species of the genus Clypeuspinus Balkenohl, 2021 (Coleoptera: Carabidae Scaritinae) from India
No full textNeethu, V.P., Sabu, K. Thomas (2023): A new species of the genus Clypeuspinus Balkenohl, 2021 (Coleoptera: Carabidae Scaritinae) from India. Zootaxa 5296 (4): 589-594, DOI: 10.11646/zootaxa.5296.4.8, URL: http://dx.doi.org/10.11646/zootaxa.5296.4.
Taxonomy of Euschizomerus Chaudoir 1850 (Coleoptera: Carabidae: Panagaeinae) from India with a new species and new synonym
No full textJithmon, V.A., Thomas, Sabu K. (2018): Taxonomy of Euschizomerus Chaudoir 1850 (Coleoptera: Carabidae: Panagaeinae) from India with a new species and new synonym. Zootaxa 4471 (2): 361-368, DOI: 10.11646/zootaxa.4471.2.
Ochicanthon devagiriensis Sabu & Latha, sp. nov.
No full textOchicanthon devagiriensis Sabu & Latha sp. nov. (Figs. 13–17) Description. Body (Fig. 13) predominantly black. Dorsal surface of head glabrous, with annular punctation separated by intervals approximately equal to their diameter. Pronotum in lateral view strongly convex, outline at base obtusely angled with that of elytral suture; laterobasal paramarginal ridge absent. Pronotal punctation (Fig. 14) consists of annular setiferous punctures separated by interval approximately equal to their diameter, becoming larger laterally and posteriorly; setae conspicuous, arcuate and semi-erect. Elytra in lateral view strongly convex, bearing about a dozen tubercles, some on posterior portion of disc projecting conspicuously; suture conspicuously raised, except on apical quarter; striae shallow, wide, consisting of chains of discoidal depressions joined by straight sulci (Fig. 14); interstriae moderately convex, uneven, covered with fine, sparse setiferous punctures arranged in two rows; background microsculpture smooth; setae stout, arcuate and semi-erect, never scale-like; lateral ridge posteriorly extended to level of apex of second stria. Mesosternum with sparse punctures towards base; meso-metasternal line angulate; metasternal shield with uniform punctation separated by intervals fairly equal to their diameter (Fig. 15). Pygidium rather uniformly covered with shallow annular setiferous punctures. Protrochanter with outer margin arcuate. Hind wings absent. Male lacking obvious secondary sexual characters. Aedeagus as in Figs 16–17. Measurements (mm; n = 27): TL = 3.8–4.3; BW = 2.2–2.4; PL = 1.3–1.4; PW = 2.1–2.3; EL = 1.9–2.2. Type material. Holotype (male, in NPC): “ India, Kerala, Idikki District, Umayamalai (Eravikulam National Park), 2368 m, upper montane evergreen forest, dung baited pit fall trap, 1. IX. 2007, Shiju, T.R.” Paratypes (26): Same data as holotype, 15 females in SJC and ZSI-Ca; same data as holotype, but 2. IX. 2007, 5 females in KFRI; “ India, Kerala, Idikki District, Rajamalai (Eravikulam National Park), 2114 m, montane evergreen forest, dung baited pit fall trap, 5. XII. 2006, Vinod, K.V,” 4 females in NPC; “ India, Kerala,” 1 male and 1 female in MHNG. Distribution and natural history. South India (upper montane evergreen forests at Eravikulam National Park, in the South Western Ghats montane rain forest ecoregion). Etymology. Named after the local name ‘Devagiri’ of St. Joseph’s College, Calicut, Kerala State, India. Diagnosis. Within the genus, the presence of projecting tubercles on elytral disc is unique to O. devagiriensis. Among the four wingless Indian species of Ochicanthon (see diagnosis under O. besucheti), only O. devagiriensis and O. vazdemelloi have the elytral pubescence arcuate, semi-erect and arranged in rows. The only other Ochicanthon species to possess erect elytral pubescence arranged in rows is O. hanskii Krikken & Huijbregts, 2007, from Borneo, which is interestingly also the only non-Indian wingless species of the genus.Published as part of Latha, Mathews, Cuccodoro, Giulio & Sabu, Thomas K., 2011, Taxonomy of the dung beetle genus Ochicanthon Vaz-de-Mello (Coleoptera: Scarabaeidae: Scarabaeinae) of the Indian subcontinent, with notes on distribution patterns and flightlessness, pp. 1-29 in Zootaxa 2745 on pages 7-10, DOI: 10.5281/zenodo.27662
Bombardier beetles of the genus Pheropsophus Solier 1833 (Carabidae: Brachininae: Brachinini) from Indian subcontinent
No full textVenugopal, Akhil S., Thomas, Sabu K. (2019): Bombardier beetles of the genus Pheropsophus Solier 1833 (Carabidae: Brachininae: Brachinini) from Indian subcontinent. Zootaxa 4608 (1): 65-89, DOI: https://doi.org/10.11646/zootaxa.4608.1.
Comparison of the Arboreal Dung Beetles (Coleoptera: Scarabaeidae: Scarabaeinae) of the Wet and Dry Forests of the Western Ghats, India
No full textSabu, Thomas K., Nithya, Sathiandran (2016): Comparison of the Arboreal Dung Beetles (Coleoptera: Scarabaeidae: Scarabaeinae) of the Wet and Dry Forests of the Western Ghats, India. The Coleopterists Bulletin 70 (1): 144-148, DOI: 10.1649/072.070.0121, URL: http://dx.doi.org/10.1649/072.070.012
FIGURES 4–6 in New species, new synonym, and redescription of Onthophagus (Coleoptera: Scarabaeidae: Scarabaeinae) from the Western Ghats, India
No full textFIGURES 4–6. Onthophagus sahai: dorsal habitus—male (4), female (5), aedeagus, lateral view (6). Scale bar = 1 mm.Published as part of Sathiandran, Nithya & Sabu, Thomas K., 2012, New species, new synonym, and redescription of Onthophagus (Coleoptera: Scarabaeidae: Scarabaeinae) from the Western Ghats, India, pp. 53-58 in Zootaxa 3526 on page 57, DOI: 10.5281/zenodo.21336
FIGURES 1–3 in New species, new synonym, and redescription of Onthophagus (Coleoptera: Scarabaeidae: Scarabaeinae) from the Western Ghats, India
No full textFIGURES 1–3. Onthophagus tnai (holotype): dorsal habitus (1), head (2), aedeagus, lateral view (3). Scale bar = 1 mm.Published as part of Sathiandran, Nithya & Sabu, Thomas K., 2012, New species, new synonym, and redescription of Onthophagus (Coleoptera: Scarabaeidae: Scarabaeinae) from the Western Ghats, India, pp. 53-58 in Zootaxa 3526 on page 55, DOI: 10.5281/zenodo.21336
Thomas Grisell letter to Thomas Rotch, 2nd mo 19th 1823
No full textThomas Grisell's letter reached the Rotch household several months before the unexpected death of Thomas Rotch in August, 1823. This is the last letter of the series and presumably the author learned of his friend's death before another letter was penned. 7.95" x 10" (20.2 by 25.5 cm
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