scholarly journals NOTES ON THRIPIDÆ, WITH DESCRIPTIONS OF NEW SPECIES

1883 ◽  
Vol 15 (8) ◽  
pp. 151-156 ◽  
Author(s):  
Herbert Osborn

The family Thripidæ, though possessing many characters of peculiar interest, and being of no little importance economically, has received but very little attention from American Entomologists, either systematic or economic. With the exception of a few notes upon their habits, and descriptions of some four or five species by Dr. Fitch, and also a few notes by Mr. Walsh and Prof. Riley, concerning their food habits, scarcely anything has been written of our native species.Without going into a discussion of the classification of the group, or the peculiar characters which seem to ally it to different orders, it will be sufficient here to state that the wings are entirely membranous and folded flat upon the back, which, with the general conformation of the body, would seem to place it with the Homopterous division of the Hemiptera. The mouth parts, however, are free, composed of both mandibles and maxillæ, and the maxillæ and labium are palpigerous—characters very diverse from those of the group just mentioned.

2011 ◽  
Vol 20 (1) ◽  
pp. 161-173
Author(s):  
A.P. Kassatkina

Resuming published and own data, a revision of classification of Chaetognatha is presented. The family Sagittidae Claus & Grobben, 1905 is given a rank of subclass, Sagittiones, characterised, in particular, by the presence of two pairs of sac-like gelatinous structures or two pairs of fins. Besides the order Aphragmophora Tokioka, 1965, it contains the new order Biphragmosagittiformes ord. nov., which is a unique group of Chaetognatha with an unusual combination of morphological characters: the transverse muscles present in both the trunk and the tail sections of the body; the seminal vesicles simple, without internal complex compartments; the presence of two pairs of lateral fins. The only family assigned to the new order, Biphragmosagittidae fam. nov., contains two genera. Diagnoses of the two new genera, Biphragmosagitta gen. nov. (type species B. tarasovi sp. nov. and B. angusticephala sp. nov.) and Biphragmofastigata gen. nov. (type species B. fastigata sp. nov.), detailed descriptions and pictures of the three new species are presented.


2014 ◽  
Vol 12 (2) ◽  
pp. 333-342 ◽  
Author(s):  
Angela M. Zanata ◽  
Priscila Camelier

Characidium samurai, a species of the family Crenuchidae apparently endemic to rio das Almas and rio Vermelho basins, Bahia, Brazil, is described. The new species is readily distinguishable from its congeners, except C. lanei, by having a dark lateral band along the head and body that is particularly broad from the rear of the head to the end of the caudal peduncle (1.5 or 2 scales wide) and by the absence of dark bars or blotches on the ventral half of the body. Characidium samurai differs from C. laneiby having the lateral band with straight borders overall (vs.lateral band with somewhat irregular borders due to blotches extending dorsally or ventrally), anal fin ii,7-8 (vs. ii,6), and 4 horizontal scale rows above the lateral line and 4 below (vs. 5/3). It further differs from congeners by a series of features, including isthmus completely covered by scales, lateral line complete with 34-37 perforated scales, 9 scales on the transversal line, 14 scale rows around the caudal peduncle, anal fin ii,7-8, and the absence of dark bars or spots on the fins, except by a faded dorsal-fin bar. The presence of pseudotympanum in four species of Characidium is discussed.


2018 ◽  
Vol 63 (4) ◽  
pp. 766-771 ◽  
Author(s):  
Nessrine Ghanmi ◽  
David González-Solís ◽  
Lamia Gargouri

Abstract Helminthological examinations of the red mullet Mullus barbatus (Linnaeus) (Mullidae) from the Gulf of Hammamet, off Tunisia, revealed the presence of one undescribed gonad-infecting nematode species, Philometra barbata n. sp. (Philometridae). The new species as other congeneric species is mainly characterized by the shape of the caudal mound, the distribution of the caudal papillae and the shape of the gubernaculum with the presence of a dorsal protuberance consisting of two dorsolateral lamellar parts separated from each other by a smooth median field in the male. The new species differs from its gonadinfecting congeners in the body length of male, the length of spicules and gubernaculum. This is the second nominal species of Philometra reported from fishes of the family Mullidae and the 14th from the Mediterranean Sea.


Zootaxa ◽  
2019 ◽  
Vol 4563 (3) ◽  
pp. 516 ◽  
Author(s):  
RAEHYUK JEONG ◽  
ALEXEI V. TCHESUNOV ◽  
WONCHOEL LEE

A new species of the genus Thalassironus de Man, 1889 was discovered during several surveys of the offshore marine ecosystem in Korea. This new species belonging to the family Ironidae, Thalassironus koreanus sp. nov., shares general morphological traits of the genus such as an optically smooth cuticle, buccal cavity consisting of two parts with three movable teeth and thick cuticularized walls, six rounded lips with ten cephalic setae, slit-like amphid and short conical tail with caudal glands present. The new species is most closely related to T. bohaiensis, first discovered in the Bohai Sea, in terms of body ratio (a, b, c, c’) and general morphology, but differs by its generally longer and larger body structures, cervical setae at the level of the buccal cavity, paired somatic setae distributed along the body, and longer/larger spicule. A description of Thalassironus koreanus sp. nov., diagnosis of the genus, emended pictorial key for the genus and discussion of important characteristics for the genus is provided. 


2009 ◽  
Vol 60 (5) ◽  
pp. 419-430
Author(s):  
Lamara Maisuradze ◽  
Kakhaber Koiava ◽  
Silvia Spezzaferri

Taxonomic revision and new species/subspecies of Middle-Late Miocene (Bessarabian) miliolids of the Family Hauerinidae Schwager from Georgia — Eastern ParatethysThree new miliolid taxa from Bessarabian sediments from Georgia (Eastern Paratethys) are described following the classification of Łuczkowska (1972), which has never been used before by ex-Soviet micropaleontologists. They are:Varidentella luczkowskae; Varidentella reussi(Bogdanowicz) subsp.costulata; andAffinetrina voloshinovae(Bogdanowicz) subsp.eldarica.This classification takes into account the morphology of the aperture and the shape and size of teeth as criteria to distinguish the species. This study contributes important criteria which will help to unify the taxonomical inconsistencies between the Eastern, Central and Western Paratethyan miliolids.


1962 ◽  
Vol 36 (3) ◽  
pp. 243-258 ◽  
Author(s):  
S. C. Baugh

Two specimens of this fluke were collected from the nictitating membrane of the Steppe Eagle, Aquila nipalensis Hudson, shot near the lake Chinhut, about 5 miles from Lucknow, U.P.The body.(Fig. 1) is aspinose, flattened and clavate with a narrow anterior and a broadly rounded posterior end. It measures 4·5–5·9 mm. in length and 1·5–1·8 mm. in maximum width in the middle region. The oral sucker is terminal measuring 0·33–0·36 mm. X 0·47–0·49 mm. The ventral sucker is larger than the oral sucker, situated at the level of the division of. the anterior and middle-thirds of the body, and about 1·14 mm. from the anterior extremity. It measures 0·56–0·61 mm. X 0·52–0·54 mm.


Zootaxa ◽  
2017 ◽  
Vol 4323 (4) ◽  
pp. 547 ◽  
Author(s):  
GIACINTA ANGELA STOCCHINO ◽  
RONALD SLUYS ◽  
ALESSANDRO MONTANARI ◽  
RENATA MANCONI

In this paper we report a new species of Dendrocoelum from the chemoautotrophic ecosystem of the Frasassi hypogenic cave complex in the northeastern Apennines of Italy. Dendrocoelum leporii Stocchino & Sluys, sp. nov. is characterized by the presence of a muscular atrial valve, which is unique within the genus. Moreover, the new species is characterized also by a penis papilla with a pseudoflagellum, numerous testes situated in the ventral, dorsal and median body regions with the follicles extending to the far posterior end of the body, and a large adenodactyl with the so-called Balkan type of musculature. The new species represents the twelfth dendrocoelid species recorded for Italy. A summary is provided of the species of the family Dendrocoelidae Hallez, 1892 thus far reported for the mainland and the isles of Italy. 


Author(s):  
V. Lo Russo ◽  
G. Villares ◽  
A. Martelli ◽  
C.T. Pastor de Ward ◽  
C. Harguinteguy

Two new free-living marine nematodes belonging to the family Thoracostomopsidae, subfamily Enoplolaiminae and the generaEpacanthionare described from Patagonian coastal areas, Río Negro and Chubut provinces of Argentina. InEpacanthion bicuspidatumsp. nov. the main features are: two cusps on distal mandible end; presence of two rings of eight setae in the cervical region; and eight crown-shaped setae along the body, presence of one supplement distant two cloacal body diameter (cbd) from cloacae, gubernaculum and short spicule.Epacanthion ampullatumsp. nov. is characterized by having a tubular and long pre-cloacal supplement, short spicule, presence of gubernaculum, presence of three long setae on the tip of the tail, the presence of one supplement distant three cbd from cloacae and the presence of two small cusps on the distal end of the mandible.


1927 ◽  
Vol 5 (2) ◽  
pp. 89-104 ◽  
Author(s):  
D. O. Morgan

The classification of the Trematode family Opisthorchiidæ presents some difficulties to the systematist. These difficulties arise partly from the fact that a number of the existing species appear to lack any real morphological characters by which they can be differentiated, slight variations in measurements, together with a difference in host, having been considered sufficient to justify the making of new species. This view has resulted in the placing of undue importance on somewhat minor differences when they do occur in other species, such differences being considered sufficient for creating new genera.The systematist is further confronted with the difficulty of forming definite opinions on the systematic position of some of the species made by earlier workers. Their descriptions and figures are often inadequate owing to the fact that characters which, in the past, were considered of minor importance are now given much closer attention. Examples of the confusion which has arisen from such a position will be referred to in this paper.


Zootaxa ◽  
2012 ◽  
Vol 3478 (1) ◽  
pp. 553-569 ◽  
Author(s):  
SERGIO IBÁÑEZ-BERNAL ◽  
VICENTE HERNÁNDEZ-ORTIZ

New taxa of the family Ropalomeridae from Costa Rica are described, and additional records of ropalomerid flies fromMexico and Central America are provided. The new genus and species Acrocephalomyia zumbadoi can be easily distin-guished from all other ropalomerid genera by the following combination of characters: angular forward projection of head,absence of ocelli, flat face, bare arista, long scutum, and scutellum triangular-shaped and dorsally flattened with only onepair of apical bristles with bases approximated. The new species Ropalomera aterrima can be recognized from congenersby remarkable differences of the head, the shape of the scutellum, the absence of scutal vittae, fumose wings, and by theblack coloration of the body, ocellar bristles large, one postpronotal bristle, scutum without pollinose vittae and flat scutellum. Lenkokroeberia chryserea Prado and Kroeberia fuliginosa Lindner are newly confirmed for Costa Rica.


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