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| Registros recuperados: 191 | |
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| Ritsema Cz., C.. |
| Length without the head 20,5 mm., that of the head with the protuberances 4,5 mm.; breadth at the shoulders 11 mm. — Head bronzy green with coppery tinges, especially at the front margin of the protuberances; palpi and antennae dark brown red with metallic green tinges; the basal joint of the antennae green. Pronotum and scutellum opaque green, the margins smooth and shining. The elytra sub-opaque green, the suture and lateral margins smooth and shining. Pygidium, body beneath and legs shining green, partially with rich coppery tinges. The whole insect, except the clypeus and the outer surface of the cephalic protuberances, the raised lateral border of the prothorax and elytra, the lateral margins of the scutellum, the suture (partially), the under surface... |
| Tipo: Article / Letter to the editor |
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| Ano: 1879 |
URL: http://www.repository.naturalis.nl/record/509049 |
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| Ritsema Cz., C.. |
| Years ago I received from his Excellency, the Ex-Governor General of Dutch India J. W. van Lansbercre, a lot of beetles from Sintang (Borneo), containing a. o. a male Cyclommatus of minor development, which I believed to belong to an uudescribed species. I abstained, however, from describing it for want of the major development, but gave it the provisory name of squamosus, making allusion to the large scales by which the insect is covered on its upper surface. Now, a few days ago, my friend Neervoort van de Poll handed to me for identification a male Cyclommatus of major development from Brunei (Borneo), captured by Mr. Waterstradt, and I was highly surprised to find that it belonged to the same, still uudescribed species as my small male from Sintang.... |
| Tipo: Article / Letter to the editor |
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| Ano: 1892 |
URL: http://www.repository.naturalis.nl/record/508686 |
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| Ritsema Cz., C.. |
| This new species belongs to Parry’s ¹) Section A (mandibles robust, with a recurved process at the base), b (prothorax smooth, non-foveate; the anterior angles produced, non-emarginate) and is therefore allied to Nigidius laevicollis Westw. ²) of tlie Philippine islands, but at once to be distinguished from that species by the different punctuation of the sides of the prothorax and that of the sulci of the elytra. I propose to name the new species in honor of the well known and sagacious inquirer of insect-life Mr. Jules Lichtenstein of Montpellier: Nigidius Lichtensteinii, sp. n. |
| Tipo: Article / Letter to the editor |
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| Ano: 1879 |
URL: http://www.repository.naturalis.nl/record/508657 |
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| Ritsema Cz., C.. |
| Length of the ♂ 22 mm., breadth at the shoulders 6,5 mm.; length of the ♀ 27 mm., breadth at the shoulders 8,5 mm. — Black, covered with a black velvety pubescence, and provided with markings of short white hairs. The head with a faint purplish hue and provided with two white stripes on the face, bordering the inner orbits and joining the anterior basal angle of the mandibles; with a white transverse band behind the base of the eyes and with two closely approximated stripes on the vertex, running from between the antennary tubers to the front margin of the thorax and being suddenly constricted in the middle ¹). The head is sparsely and irregularly covered with large and deep punctures. The antennae are covered with a dense whitish pile and the derm of the... |
| Tipo: Article / Letter to the editor |
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| Ano: 1892 |
URL: http://www.repository.naturalis.nl/record/509332 |
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| Ritsema Cz., C.. |
| Characteristics of the genus Batocera, but with acutely produced mesosternum, entire scape which is neither incised nor scarred at the tip, and smooth antennae and forelegs. Moreover the apical joint of the antennae is transversely divided behind the middle, although not so distinctly as in the genus Apriona. I have named this genus in honor of the well known traveller in the Malayan Archipelago Baron C. B. H. von Rosenberg, who has brought home one of the two species which will here be described. |
| Tipo: Article / Letter to the editor |
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| Ano: 1881 |
URL: http://www.repository.naturalis.nl/record/508892 |
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| Ritsema Cz., C.. |
| To an interesting lot of Longicorn Beetles, communicated to me by Mr. René Oberthür, was joined the unique type-specimen of the genera Hysterarthron (collare) Thoms. and Camira (sexmaculata) Thoms., both described by the author as belonging to the family of the Cerambycidae ¹). I was astonished to find that the first did not at all belong to the named family, its anterior tarsus being composed of five joints²) (the middle legs are wanting). A further examination showed me that Hysterarthron collare Thoms. belongs to the family of the Lagriidae, and that it will find its place in the neighbourhood of the genera Statira Serv. and Casnonidea Fairm. |
| Tipo: Article / Letter to the editor |
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| Ano: 1892 |
URL: http://www.repository.naturalis.nl/record/509455 |
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| Ritsema Cz., C.. |
| This handsome species is closely allied to Helota curvipes Oberth. ¹) from the Himalaya, but at once distinguished by its more robust shape, by the coppery colour of the upper surface, by the broad fulvous streaks on the sides of the pronotum, and by the broadly subtruncate apices of the elytra in the male sex. Length 10 mm. — Shining; above coppery with shades of green; the scutellum brassy, the extreme lateral margins of the elytra bronze green; the antennae pale testaceous, the terminal joint of the club infuscate; the sides of the pronotum broadly margined with fulvous, which colour is not sharply separated from the dark metallic colour of the disk; the elytra provided with two pairs of yellow convex spots, the anterior pair placed between the 4th and... |
| Tipo: Article / Letter to the editor |
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| Ano: 1893 |
URL: http://www.repository.naturalis.nl/record/509248 |
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| Ritsema Cz., C.. |
| Length 13 mm., breadth at the shoulders 7 mm. — Black; head, thorax and abdomen with a faint coppery hue, scutellum and elytra with a faint metallic green hue mixed with coppery; antennae pale fulvous, the palpi slightly darker. Head and thorax lustreless, elytra and abdomen subshining. — Clypeus densely punctured, broadly rounded, front margin turned upwards; separated from the face by a shining impunctate streak. Face strongly and deeply punctured, the punctures a trifle larger than those on the pronotum. — Pronotum exceedingly densely and regularly punctured, the narrow interspaces between the punctures forming irregular longitudinal and oblique fine ridges; the anterior lateral angles flattened, rather acutely protruding, shining, with a few punctures... |
| Tipo: Article / Letter to the editor |
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| Ano: 1913 |
URL: http://www.repository.naturalis.nl/record/508579 |
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| Ritsema Cz., C.. |
| Length with mandibles 27,5 mm., that of the left mandible (which is a little longer than the right one) 8 mm. — Ground-color black, covered all over (with the exception however of the tip, the inner margin and the undersurface of the mandibles, the tip of the cephalic horn, and the clypeus) with a delicate brownish grey crust which does not hide the punctuation. The uppersurface of the mandibles, the margins of the thorax and of the elytra, and the scutellum, are densely beset with pale dirty yellow scales; moreover very small scales are present on the whole undersurface, whereas a small number of larger scales are arranged in ten longitudinal rows on the elytra. The tibiae seem to be sharply edged which is caused by rows of densely set erect scales The... |
| Tipo: Article / Letter to the editor |
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| Ano: 1885 |
URL: http://www.repository.naturalis.nl/record/508486 |
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| Ritsema Cz., C.. |
| Mr. René Oberthür of Rennes again sent me for identification four Helota-specimens from Upper-Burma, collected by Mr. Doberty in the neighbourhood of the » Mines des Rubis” at an elevation of 1200—2300 meter above the level of the sea. These specimens belong to three species of which two are new to science; the third species, Helota notata Rits. ²), was represented by a female specimen which is now in the collection of the Leyden Museum. |
| Tipo: Article / Letter to the editor |
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| Ano: 1891 |
URL: http://www.repository.naturalis.nl/record/508452 |
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| Ritsema Cz., C.. |
| Closely allied to A. sulcata Kolbe ¹), but at once distinguished by its strong metallic colour (sulcata is deep black), more robust shape and only slightly emarginate front margin of the clypeus (in sulcata the clypeus is deeply emarginate in both sexes). Length 11 mm. — Above glabrous, very shining, bright metallic purplish with metallic green tinges; beneath the metallic hue is less distinct, especially on the prosternum and sides of metasternum; the legs black, the tarsi dark pitchy with rufous hairs; the punctures on the under surface of the body and on the legs with a minute decumbent white hair. Antennae, palpi and claws dark rufous. |
| Tipo: Article / Letter to the editor |
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| Ano: 1913 |
URL: http://www.repository.naturalis.nl/record/508563 |
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| Ritsema Cz., C.. |
| Very closely allied to, and strongly resembling P. bipunctatus Dalm., but at once distinguished from that species by the antennae being annulated with grey and black. Length 32 mm. — Black; covered with a short olivebrown pubescence which is slightly darker on the elytra; the latter have each a small glabrous spot just behind the middle and are speckled with fulvous; the head is variegated on the mandibles, face, cheeks and vertex with small spots of a coarse fulvous pubescence which likewise covers the scutellum except a glabrous stripe at the middle of its base; the antennae are covered with a dense grey pubescence, the 3rd and following joints ringed with black at the apex. |
| Tipo: Article / Letter to the editor |
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| Ano: 1895 |
URL: http://www.repository.naturalis.nl/record/508498 |
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| Ritsema Cz., C.. |
| Mr. René Oberthür of Rennes has received from his friend the R. P. Bretaudeau an interesting lot of Helotidae brought together in the environs of Kurseong. This lot, sent to me for identification by Mr. Oberthür, contains the following species: Fairmairei Rits., several examples of both sexes. Desgodinsi Rits., a single female described in this Note. attenuata n. sp., two female specimens, described in this Note. |
| Tipo: Article / Letter to the editor |
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| Ano: 1894 |
URL: http://www.repository.naturalis.nl/record/508682 |
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| Ritsema Cz., C.. |
| It is very closely allied to Zonopterus magnificus Bates ¹) from Mount Kina Balu (North Borneo) and strongly resembles that species of which I have a female example from Mr. Oberthür’s collection before me. The new species, of which Dr. J. Bosscha captured a female specimen near Sambas (West Borneo), differs however from magnificus by the narrower and more orange yellow coloured elytral fascia, which moreover is farther removed from the base of the elytra, by the somewhat otherwise coloured antennae (the three basal joints and the basal half of the 4th joint are black), by the fulvous anterior tarsi, by the more slender posterior legs and, last not least, by the shape of the apex of the last (5th) ventral segment which is deeply notched in the middle in... |
| Tipo: Article / Letter to the editor |
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| Ano: 1894 |
URL: http://www.repository.naturalis.nl/record/509061 |
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| Ritsema Cz., C.. |
| Judging from the description this species must be allied to Dichodontus coronatus Burm. ¹) from the coast of Malabar, by the shape of its prothorax which resembles more or less that of Coelosis biloba Fabr. in outline, but may readily be distinguished by the different punctuation. Length 31 mm., width of the shoulders of the elytra 17 mm. — Uppersurface, tibiae and tarsi dark pitchybrown approaching to black; undersurface, club of the antennae, palpi, coxae and femora reddish brown; the pubescence of the sternum pale ferruginous, that of the undersurface of the head, sides of prosternum, legs and abdomen dark brown-red. |
| Tipo: Article / Letter to the editor |
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| Ano: 1882 |
URL: http://www.repository.naturalis.nl/record/508906 |
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| Ritsema Cz., C.. |
| 1. Parastasia Zoraidae Gestro, Ann. Mus. Civ. di Genova. VIII (187G). p. 514= Coelidia marginata Boisd., Voyage de l’Astrolabe. Entom. pl. 6 , fig. 17 et Faune Entom. de l’Océanie. II (1835). p. 187. 2. Parastasia degenerata Voll., Tijdschr. v. Entom. VII (1864). p. 147 = Parastasia puncticollis Deyr. in litt. = Parastasia rugosicollis Blanch., Cat. Coll. Ent. Mus. Paris (1850). p. 217. |
| Tipo: Article / Letter to the editor |
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| Ano: 1885 |
URL: http://www.repository.naturalis.nl/record/509444 |
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| Registros recuperados: 191 | |
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