scholarly journals TWO NEW HOMOPTERA FROM AFRICA, AND SYNONYMICAL NOTES

1906 ◽  
Vol 38 (5) ◽  
pp. 154-156 ◽  
Author(s):  
G. W. Kirkaldy
Keyword(s):  
Posterior Margin ◽  
The Other ◽  
Marginal Cell ◽  
Outer Branch

Scaphoideus Anneœ, sp. nov.—Different from all the other species of Scaphoideus known to me, by the presence of only one median subapical cell in the tegmina, instead of two: the subcostal (marginal) cell widens apically, the outer branch of the raidal vein being continuous up to the apex of the tegmen, not ending at the base of teh subapical cells as in the other species. The interolateral margins of the eyes are straight, diverging very slightly towards the dorsal apex, and the posterior margin of the pronotum is a little more emarginate.

Stolephorus grandis, a new anchovy (Teleostei: Clupeiformes: Engraulidae) from New Guinea and Australia

Zootaxa ◽  
2021 ◽  
Vol 5004 (3) ◽  
pp. 481-489
Author(s):  
HARUTAKA HATA ◽  
HIROYUKI MOTOMURA
Keyword(s):  
New Species ◽  
Posterior Margin ◽  
New Guinea ◽  
Gill Arch ◽  
The Other ◽  
Gill Rakers ◽  
Caudal Peduncle ◽  
Dorsal Fin ◽  
Pelvic Fin

The new anchovy Stolephorus grandis n. sp., described on the basis of 10 specimens collected from Papua, Indonesia, and Australia, closely resembles Stolephorus mercurius Hata, Lavoué & Motomura, 2021, Stolephorus multibranchus Wongratana, 1987, and Stolephorus rex Jordan & Seale, 1926, all having double pigmented lines on the dorsum from the occiput to the dorsal-fin origin, a long maxilla (posterior tip just reaching or slightly beyond the posterior margin of preopercle), and lacking a predorsal scute. However, the new species clearly differs from the others in having fewer gill rakers (35–39 total gill rakers on the first gill arch in S. grandis vs. > 38 in the other species), a greater number of vertebrae (total vertebrae 42–43 vs. fewer than 41), longer caudal peduncle (21.9–23.7% SL vs. < 20.8%), and the depressed pelvic fin not reaching posteriorly to vertical through the dorsal fin-origin (vs. reaching beyond level of dorsal-fin origin).

scholarly journals TENTHREDO (?) DELTA, PROV.

1886 ◽  
Vol 18 (2) ◽  
pp. 32-33
Author(s):  
W. Hague Harrington
Keyword(s):  
Posterior Margin ◽  
The Other ◽  
Careful Examination ◽  
Triangular Form ◽  
Past Season ◽  
The Past ◽  
Typical Form

Among the Tenthredinidæ captured by me during the past season was a good series of Tenthredo delta Prov, consisting of 12 females and 26 males. In pinning them I was frequently struck by the evident irregularity of the venation of the wings, and on a more careful examination of the specimens I find these irregularities to be both numerous and remarkable. No other species represented in my cabinet show any such divergencies from the typical form, except in rare instances. Provancher describes the female (page 210, “Petite Faune Entomologique du Canada”) as having two discoidal cells in under wings, and Cresson (“Trans. Am. Ent. Soc.,” vol. viii., page 44) as having one or two middle cells. One middle cell appears to be the rule, and any deviation therefrom to be an exception. Of my 12 specimens, 10 have one middle cell each, one has two middle cells, and the other none. The males are more uniform apparently in their venation, as none of my 26 specimens have middle cells in the under wings, thus agreeing with the description given by Cresson (loc. cit). Apart from the varying number of middle cells, the under wing of the females have the cells varying much in shape, especially the middle one, which ranges from a small triangular form to a large foursided (square or irregular) one. There are also occasionally small additional cells on the posterior margin.

Braconidae : Notes and new Species

1931 ◽  
Vol 22 (1) ◽  
pp. 75-82 ◽  
Author(s):  
D. S. Wilkinson
Keyword(s):  
New Species ◽  
Posterior Margin ◽  
The Other ◽  
Lateral Carina ◽  
Median Carina ◽  
Other Hand ◽  
Basal Half ◽  
Apical Half

Rhaconotus mahensis, sp. n.♀♂. Black ; scape and all legs red testaceous ; ovipositor bright red ; flagellum red-brown, possibly rather darker at apex ; wings hyaline, the setae with a distinctly fulvous tinge, and the stigma hyaline (at least not darkened).♀♂. The integument is not coriaceous throughout, and is only sparsely clothed with setae (except on the flagellum and possibly the legs). Head smooth and highly shining, not coriaceous, impunctate, the vertex and occiput almost entirely devoid of setae ; antennae longer than head, thorax, and abdomen together ; flagellar joints in ♀ 29–33, in ♂ 26–28. Thorax : mesonotum dully shining, coriaceous ; the notauli well marked, joining slightly before reaching the posterior margin of the mesonotum ; propodeon with five longitudinal carinae, one in the middle and two on each side, these latter rather more closely placed to each other than to the median carina ; this median carina is discernible as such only in the basal half of the propodeon, thereafter becoming lost amongst the reticulate wrinkles with which the apical half of the propodeon abounds ; the lateral carinae, on the other hand, are discernible more or less throughout their length, particularly the inner pair which can generally be traced to the median apex of the propodeon where they join each other ; the integument of the basal half of the propodeon coriaceous on each side of the median carina as far as the first lateral carina, thereafter wrinkled as in the apical half.

XVII.—On some Cretaceous Echinoidea from the Neighbourhood of Lobito Bay

1917 ◽  
Vol 51 (3) ◽  
pp. 585-587 ◽  
Author(s):  
J. W. Gregory
Keyword(s):  
Posterior Margin ◽  
The Other ◽  
Variable Species

Nine species of Echinoidea were described by De Loriol From Benguella and mainly from the neighbourhood of Dombe Grande.1. One of his species, Epiaster catumbellensis, is common in the Lobito district. It is recorded by Be Loriol from the Inflata beds at Catumbella, and the younger Cyprina ivensi sandstone at Dombe Grande. It is a variable species. According to the dimensions given by De Loriol, the length varies from 25 to 36 mm., and the breadth varies from 88 to 94 per cent, of the length and the height from 66 to 77 per cent, of the length. His illustrations show that the species has two chief forms: in one the shape is depressed and the posterior margin is nearly vertical; in the other the posterior interambulacrum is subcarinate, and the posterior margin is more sloping owing to the projection of the lower posterior corner. In De Loriol's figure, pl. viii, No. 4, the posterior margin has a slope of only 7° from the vertical; in his fig. 5 this slope is 15° from the vertical.

The first record of Macrogyrodactylus species (Monogenea, Gyrodactylidae) on freshwater fishes in Senegal with the description of Macrogyrodactylus simentiensis sp. nov., a parasite of Polypterus senegalus Cuvier

2008 ◽  
Vol 53 (1) ◽  
pp. 1-8 ◽  
Author(s):  
Iva Přikrylová ◽  
Milan Gelnar
Keyword(s):  
Freshwater Fish ◽  
Posterior Margin ◽  
First Record ◽  
Freshwater Fishes ◽  
Marginal Hook ◽  
The Other ◽  
New Host ◽  
Polypterus Senegalus ◽  
New Host Records ◽  
Macrogyrodactylus Congolensis

AbstractThe first record of monogenean parasites of the genus Macrogyrodactylus Malmberg, 1957 on freshwater fish in Senegal is presented. Macrogyrodactylus congolensis Prudhoe, 1957 from the skin and Macrogyrodactylus heterobranchii N’Douba et Lambert, 1999 from the gills of Clarias anguillaris L. were found, representing new host records for these parasites. On Polypterus senegalus Cuvier, three Macrogyrodactylus species were identified, Macrogyrodactylus polypteri Malmberg, 1957, Macrogyrodactylus simentiensis sp. nov. and Macrogyrodactylus sp. M. simentiensis sp. nov. can be readily distinguished from the other Macrogyrodactylus species by the size of its hamuli and the shape of its marginal hook sickles. The marginal hooks on the anterolateral lobes of M. simentiensis differ in size and shape from those on the posterior margin of the haptor. Measurements and drawings of the haptoral sclerites of all five identified species are provided.

A new species of Cryptonympha Lugo-Ortiz & McCafferty (Ephemeroptera, Baetidae) from Cerro Duida (Venezuela)

Zootaxa ◽  
2018 ◽  
Vol 4377 (4) ◽  
pp. 587
Author(s):  
TOMÁŠ DERKA ◽  
CAROLINA NIETO
Keyword(s):  
New Species ◽  
Posterior Margin ◽  
The Other ◽  
Nymphal Stage ◽  
Blackwater Stream ◽  
Tracheal Gills ◽  
A New Species ◽  
Half Length

The genus Cryptonympha includes three species: C. copiosa Lugo-Ortiz & McCafferty, 1998; C. dasilvai Salles & Francischetti, 2004 and C. genevievae Thomas, Manchon & Glémet, 2013, known only from the nymphal stage. A description of the nymph of a fourth representative, Cryptonympha tracheata sp. n. is provided here, based on material collected in a blackwater stream on the slopes of the Cerro Duida mountain in south-western Venezuela. The nymph of the new species can be easily distinguished from the other species of the genus by very long tracheal gills II–VII, 2.5 times the length of each tergum, gill I small, nearly half length of gill IV and by posterior margin of terga with rounded spines. A complete description of the new species and a key for nymphs of all known Cryptonympha species are provided. 

Sycanus aurantiacus (Hemiptera: Heteroptera: Reduviidae), a new harpactorine species from Bali, Indonesia, with brief notes on its biology

Zootaxa ◽  
2007 ◽  
Vol 1615 (1) ◽  
pp. 21-27
Author(s):  
TADASHI ISHIKAWA ◽  
WATARU TORIUMI ◽  
WAYAN SUSILA ◽  
SHÛJI OKAJIMA
Keyword(s):  
New Species ◽  
Posterior Margin ◽  
Antennal Segment ◽  
The Other ◽  
Lepidopteran Pests ◽  
Assassin Bug ◽  
A New Species

A new species, Sycanus aurantiacus, of the assassin bug subfamily Harpactorinae is described on the basis of specimens collected from Bali, Indonesia. This species is distinguished from the other species of Sycanus by its antennal segment I having two orange annulations; the posterior pronotal lobe being weakly tumid in the middle near the posterior margin; the scutellar spine being erect, short, and rounded at the apex; each femur having two incomplete orange annulations; the hemelytral corium being blackish with the veins yellow to yellowish brown; and the abdominal laterotergites being weakly extended dorsad. This species is notable because it feeds on some serious lepidopteran pests of cabbage.

scholarly journals Perforated ray cells

1933 ◽  
Vol 113 (780) ◽  
pp. 82-92 ◽  
Keyword(s):  
The Other ◽  
Careful Study ◽  
Vessel Segment ◽  
Marginal Cell ◽  
Ray Cells ◽  
Vessel Structure ◽  
Fusiform Initials ◽  
Side Walls ◽  
Ray Cell ◽  
Lateral Walls

In certain woods, whose rays have extensive uniseriate margins, an individual marginal cell may sometimes be modified, by the perforation of its side walls, to connect two vessel segments on opposite sides of the ray. This feature does not appear to have been previously described though it is by no means uncommon; it has been observed by the authors in woods of many widely separated families. It is limited to woods with particular types of ray and vessel structure, but its occurrence seems to be primarily determined by the manner in which the vessels develop. Large ray cells which appeared to have scalariform perforations in the side walls were first observed by the authors in the wood of Lacistema aggregatum (Berg). Rusby. (Lacistemaceæ); examination of macerated material, fig. 1, has shown that the side walls of these cells are exactly similar to the end walls of the vessel segments, and though it has not been possible to demonstrate the absence of a membrane, the authors are convinced from a careful study of the sections, that these walls are actually perforated, and that each forms a link between two vertical series of vessel segments. The course of the vessel is unusual; instead of continuing up and down between the rays, it periodically passes obliquely through a ray, and continues on the other side. The ray is usually uniseriate at the point at which it is crossed, and the ray cell involved becomes slightly swollen, rather in the manner of an oil or mucilage cell but without visible contents. The lateral walls are perforated, so that the cell resembles a very short vessel segment, and presumably functions as such. From the position and shape of these cells, however, it is clear that they have been derived from ray initials and not from fusiform initials. Attention was first drawn to this phenomenon by the presence of scalariform bars in the walls of cells which, from their shape, appeared at first sight to be oil or mucilage cells; simple perforations in such cells are obviously more easily overlooked, and it was not until a special search was made that they were found to be by no means uncommon, and to occur in woods of several different families.

scholarly journals A NEW SPECIES OF HYPOLÆPUS, KIRBY

1903 ◽  
Vol 35 (2) ◽  
pp. 47-47
Author(s):  
J. Chester. Bradley
Keyword(s):  
New Species ◽  
Narrow Band ◽  
The Other ◽  
Base Length ◽  
Marginal Cell ◽  
A New Species

Hypolæpus Viereckii, sp. nov.—Dark, abdomen whit beneath, legs partly white, wings hyaline, nervures whit at base. Length, 7–8 mm.♀. — Head shining black; face below the insertion of the antennæ, a narrow band between the antennæ and the eyes, head above the eyes, and the temples, white; antennæ black, nine-jointed, third slightly arcuate, thicker and longer than the fourth, which is in turn longer than the fifth, and so on to the last. Thorax shining black, laterally in front of wings white; wings hyaline, nervures brown, whitish at base of wing; first transverse cubitus transparent, without colour, second submarginal cell receiving two recurrent nervures, lanceolate cell petiolate, only one marginal cell; legs dark brown, all coxæ and trochanters, tibiæ execpt tips and basal third of posterior femora, white; posterior tibiæ slightly enlarged, longitudinally sulcate, first joint of posterior tarsi as long as the other three combined, the last joint being especially short.

Review of the subgenus Xizicus (Xizicus) Gorochov, 1993 (Orthoptera: Tettigoniidae: Meconematinae) from China

Zootaxa ◽  
2017 ◽  
Vol 4247 (1) ◽  
pp. 68
Author(s):  
JIYUAN FENG ◽  
FUMING SHI ◽  
SHAOLI MAO
Keyword(s):  
Posterior Margin ◽  
Type Species ◽  
Abdominal Tergite ◽  
The Other ◽  
Subgenital Plate ◽  
Lateral Margins

Gorochov (1993) erected the subgenus Xizicus (Xizicus), with the type species Xizicus (Xizicus) fascipes (Bey-Bienko, 1955). This subgenus is distinguished from the other subgenera of Xizicus by the following characters: male tenth abdominal tergite with a pair of contiguous posterior processes in the middle; subgenital plate simple, styli slender, located on the apices or subapices of lateral margins; posterior margin of female subgenital plate rounded. 

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