New injurious Curculionidae (Col.)

1931 ◽  
Vol 22 (3) ◽  
pp. 417-421 ◽  
Author(s):  
Guy A. K. Marshall
Keyword(s):  
Median Carina ◽  
Basal Half ◽  
Transverse Stria ◽  
Apical Half ◽  
Basal Width

Aedophronus echinatus, sp. n. (Pl. xxi, fig. 2).Derm black, with dense brown scaling, usually with an indefinite mottling of darker and paler scales ; the inflexed margins of the elytra fuscous.Head not very convex, with the median stria extending to the vertex and the anterior transverse stria slightly curved ; the infra-ocular margin much narrower than the base of the scape and not projecting ; the setae short, stout and curved backwards ; the eyes comparatively large, highest much behind the middle, and with the hind margin devoid of scaling. Rostrum longer than the head (5·5 : 4), much shorter than its basal width (5·5 : 7·5), narrowed in front, straight at the sides, with a shallow impression on the apical half and with no median carina ; the marginal carina of the epistome obtuse but distinct. Prothorax transverse (3·5 : 6), strongly rounded at the sides, widest at the middle, subtruncate at the apex, which is only slightly narrower than the base ; the dorsum with an abbreviated median stria on the basal half and bearing on the disk short curved setae like those on the head, the lateral ones much longer, stout, straight and pointed (when unbroken), the longest being about as long as the scape.

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.

New injurious Curculionidae from Africa (Col.)

1944 ◽  
Vol 35 (1) ◽  
pp. 43-48
Author(s):  
A. K. Marshall
Keyword(s):  
Outer Edge ◽  
Apical Margin ◽  
Apical Angle ◽  
Median Carina ◽  
Deep Incision ◽  
Dorsal Edge ◽  
Apical Half ◽  
Basal Width

♂♀. Derm black, with uniform dense grey scaling that has a coppery reflection.Head separated from rostrum by a narrow bisinuate stria; frons depressed below the level of the eyes and separated from them by a deep incision on each side, obliquely striolate and with a deep median sulcus; eyes moderately convex, extended sharply backwards for about one-third of their length, the orbit not projecting on the hind margin. Rostrum very slightly longer than its basal width, widest at base, gradually narrowing for two-thirds its length and thence more rapidly; dorsum broadly depressed, with longitudinally confluent punctures and a fine median carina. Antennae piceous; scape slightly exceeding hind margin of eye; funicle with joint 1 nearly twice as long as 2,3–7 subequal, about as long as broad and slightly widening distally. Prothorax nearly twice as broad as long, unusually flat, being only gently convex transversely, widest at the strongly arcuate base, the angles of which project laterally, with the sides almost straight and rapidly converging anteriorly, the apical margin being deeply sinuate on each side behind the eyes; dorsum flat longitudinally in the middle, densely squamose, each scale covering a minute granule. Elytra ovate, broader in ♀, widely sinuate at base, which is marginate, with the lateral angles projecting outwards and forwards, and the sides sinuate behind the angles; the dorsal outline moderately convex, sloping at the base; the shallow striae containing close deep punctures, which show through the scaling though partly covered and disappear behind, where the striae become deeper; intervals almost flat, with minute inconspicuous recumbent setae. Legs piceous, with dense concolorous scaling and their lower edges with a fringe of stiff erect setae; front tibiae compressed, with the outer edge carinate and the external apical angle produced laterally, the spines on the apical margin much reduced; hind tibiae with the inner face flattened and sinuate on the apical half, the corbels bare and ascending the dorsal edge more than usual, with the upper end angulate. Venter squamose laterally, but clothed elsewhere with dense stiff suberect setae.

scholarly journals Effect of CO2 treatment on dormancy duration, sprout growth and sugar content in two potato cultivars: Short communication

2011 ◽  
Vol 32 (No. 2) ◽  
pp. 68-73
Author(s):  
R. Ezekiel ◽  
B. Singh
Keyword(s):  
Short Communication ◽  
Sugar Content ◽  
Fold Increase ◽  
Potato Cultivars ◽  
Total Sugars ◽  
Apical Buds ◽  
Basal Half ◽  
Apical Half ◽  
Subsequent Storage ◽  
Sprout Growth

Dormant tubers of two potato cultivars Kufri Jyoti and Kufri Chandramukhi were treated for 7 days with 5, 10, 15 and 20% CO<sub>2</sub> concentrations at 18 &plusmn; 1&ordm;C and 90&ndash;95% RH, and compared with GA treated tubers and with untreated tubers serving as control. During subsequent storage at the same temperature and RH, dormancy duration was reduced by 20 days with CO<sub>2</sub> treatment and by 35 days with GA treatment. In Kufri Jyoti, GA treatment caused 2.6 fold increase in the concentration of reducing sugars and 0.8 fold increase in total sugars in the apical half of the tubers leading to early release of dormancy in apical buds but this increase in sugar content was not observed in the basal half where the buds remained dormant. &nbsp;

SOME NEW CANADIAN CHRYSOMELIDAE

1938 ◽  
Vol 70 (2) ◽  
pp. 35-38 ◽  
Author(s):  
W. J. Brown
Keyword(s):  
Basal Segment ◽  
Body Form ◽  
Tarsal Segment ◽  
Basal Half ◽  
Apical Half

Length 3.7 mm.; width 1.7 mm. Body form as in palustris Blatch. Black; the elytra with a greenish lustre, not at all bluish: the basal half of the head, antennae, and legs pale red; the basal segment and four terminal segments of each antenna distinctly infuscate; femora and the apical half of each terminal tarsal segment heavily infuscate.

The Role of Transpiration in Phototropism of the Avena Coleoptile: Evidence of Stomatal Control of the Phototropic Response

1994 ◽  
Vol 21 (3) ◽  
pp. 359 ◽  
Author(s):  
GI Mcintyre
Keyword(s):  
Positive Curvature ◽  
Tritiated Water ◽  
Petroleum Jelly ◽  
Phototropic Response ◽  
Avena Coleoptile ◽  
Nail Polish ◽  
Basal Half ◽  
Apical Half ◽  
Effect Of Light

The hypothesis that phototropism is caused by the effect of light on transpiration seemed at variance with the observation that Avena coleoptiles respond phototropically while submerged in water. Further investigations, however, provided evidence that phototropism of submerged coleoptiles may be caused by the light-induced promotion of stomatal guttation. Evidence of guttation by submerged coleoptiles was provided by measuring tritium accumulation in a water jacket surrounding the coleoptile when tritiated water (THO) was supplied to the roots. It was shown that the application of nail polish to the coleoptiles induced almost immediate guttation from the stomata. This response, measured quantitatively by image analysis, occurred predominantly on the irradiated side of coleoptiles previously stimulated phototropically with blue light while submerged in water, and was much reduced and more uniformly distributed when the phototropic response had been eliminated by saturating the water with CO2. Small curvatures exhibited by coleoptiles kept in the dark at high humidity were almost invariably towards the side from which guttation occurred from the apical (hydathode) stomata. Application of petroleum jelly (Vaseline) to the stomata on the illuminated side of coleoptiles stimulated phototropically in moist air induced a negative curvature in the apical half of the coleoptile and reduced the positive curvature in the basal half. In contrast, vaseline applied to the middle of one of the broad sides of the coleoptile, where no stomata occur, had relatively little effect. These results are consistent with the hypothesis that phototropism of the Avena coleoptile is caused by light-induced loss of water from the stomata. It is also postulated that the mechanism is essentially the same whether water is lost by transpiration or guttation.

New injurious Curculionidae (Col.) from Tropical Africa

1946 ◽  
Vol 36 (2) ◽  
pp. 177-180 ◽  
Author(s):  
A. K. Marshall
Keyword(s):  
Apical Margin ◽  
Median Lobe ◽  
Tropical Africa ◽  
Median Carina ◽  
Single Row ◽  
Strongly Convex ◽  
Basal Joint ◽  
Basal Half

♂♀. Derm black, with uniform dense sandy-brown scaling above and opalescent scaling beneath.Head short, not transversely impressed, the temples less than half as long as an eye; frons with the median stria partly obscured by scaling and with a few erect spatulate setae on each side; eyes strongly convex, highest behind the middle. Rostrum similar in the two sexes, a little longer than broad, about as wide at the genae as at the base, and with the sides slightly sinuate; dorsum with a high bare median carina that expands apically into a broad bare epistomal area, which is unevenly punctate and not marginate, the epistomal setae being rather sparse and narrow, the areas on each side of the carina densely squamose and obliquely impressed in the middle; mandibles less densely setose than usual and without scales; mentum with only a single row of setae along the apical margin. Antennae black, densely squamose throughout, scape straight, widening from base to apex; funicle with joints 1 and 2 equal, 3 as long as broad, 4–7 subequal and transverse; club with the basal joint pedunculate. Prothorax transverse (2:3), broadly rounded laterally in the basal half, widest at one-third from base, the basal angles rounded obtuse angles, not constricted apically, the base shallowly bisinuate with the median lobe short and broadly rounded; dorsum smooth, with dense overlapping striolate scales and short appressed spatulate setae, concealing the median stria, and with a large shallow impression in the basal angles.

scholarly journals SOME NEW NORTH AMERICAN SPIDERS

1900 ◽  
Vol 32 (4) ◽  
pp. 96-102 ◽  
Author(s):  
Nathan Banks
Keyword(s):  
North American ◽  
Basal Half ◽  
Apical Half ◽  
Eye Region

Sergiolus bicolor, n. sp.Length, ♀, 8 mm. Cephalothorax and legs pale reddish-yellow, mandibles and sternum scarcely darker, basal half of abdomen pale gray, apical half and spinnerets jet black, the line separating the two slightly convex in front; venter pale gray except the apical two-fifths, which is black, but broadly indented by the gray in the middle. Cephalothorax rather slender, about one and three-fourths as long as broad, plainly longer than patella plus tibia IV., not much narrowed in front, no trace of a dorsal groove. Posterior eye-row plainly recurved, the P. M. E. round, about twice their diameter apart, and about as far from the scarcely larger P. S. E. Anterior eye-row much shorter than posterior, nearly straight, the A. M. E. slightly smaller than P. M. E., more than their diameter apart, and rather nearer to the slightly larger A. S. E., several stiff black bristles in eye-region.

A Revision of the Indo-Australian Species of the Genus Apanteles (Hym. Bracon.).—Part II

1928 ◽  
Vol 19 (2) ◽  
pp. 109-146 ◽  
Author(s):  
D. S. Wilkinson
Keyword(s):  
Australian Species ◽  
Basal Half ◽  
Apical Half ◽  
Wing Veins

39. Apanteles taeniaticornis, sp. n.♀. Black; the four front legs (except their coxae), the basal third of the hind tibiae, red testaceous; hind femora red to red-black; basal ventrites and the lateral membranous margins of the 1st tergite pale reddish; palpi and hind tibial spurs white; the 9th to the 12th flagellar joints inclusive entirely cream-white; the apical half of the 8th, and the basal half of the 13th joint, rather pale; ovipositor red; stigma and wing veins dark brown; wings infumated.

The second representative of the genus Polididus (Hemiptera: Heteroptera: Reduviidae) in Southeast Asia, with partial redescription of P. armatissimus

Zootaxa ◽  
2008 ◽  
Vol 1740 (1) ◽  
pp. 45
Author(s):  
TADASHI ISHIKAWA ◽  
KETUT SUMIARTHA ◽  
SHÛJI OKAJIMA
Keyword(s):  
New Species ◽  
Southeast Asia ◽  
Female Genitalia ◽  
Wing Dimorphism ◽  
Male And Female ◽  
Brownish Yellow ◽  
Basal Half ◽  
Apical Half ◽  
First Time ◽  
A New Species

A new species of the harpactorine genus Polididus is described from Flores, Indonesia, on the basis of female specimens under the name P. dimorphopterus sp. nov. as the second representative of the genus in Southeast Asia. This species is unique among the congeners in showing wing dimorphism and is easily recognized by the pronotum dark brown to blackish with a pair of brownish yellow longitudinal stripes, setiferous spines on the pronotal humeri, scutellum and laterotergites IV to VII blackish in the basal half and brownish yellow in the apical half, the femur of each leg blackish in the apical fifth, the mesoand metatibiae lacking setiferous spine, the metatibia with a blackish narrow annulation subbasally. Polididus armatissimus is recorded from Bali for the first time, with descriptions and illustrations of the male and female genitalia.

A method to collect isolated myocytes and whole tissue from the same heart

2007 ◽  
Vol 293 (3) ◽  
pp. H2004-H2006 ◽  
Author(s):  
Yue-Feng Chen ◽  
Suleman Said ◽  
Scott E. Campbell ◽  
A. Martin Gerdes
Keyword(s):  
Cardiac Myocytes ◽  
Heart Tissue ◽  
Adult Rats ◽  
Cut Edge ◽  
Basal Half ◽  
Apical Half ◽  
Isolated Cardiac Myocytes ◽  
Basal Portion ◽  
Isolated Myocyte ◽  
Whole Heart

A technique for isolation of cardiac myocytes and collection of whole heart tissue from individual hearts of adult rats is described in this study. After excision of the apical half of the left ventricle (LV) and cauterization of the cut edge, aortas were cannulated and high-quality isolated cardiac myocytes were collected after collagenase perfusion of the basal portion. Myocyte dimensions from the basal portion of cauterized and noncauterized hearts from matching rats were identical. Additionally, myocyte dimensions from the basal and apical halves of the LV were compared with the use of whole heart-isolated myocyte preps. No regional differences between basal and apical LV myocyte size were found. Therefore, this cauterization method can be used to collect isolated myocytes from the basal half and whole heart tissue from the apical half, with each half being representative of the other with respect to myocyte dimensions.

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