NEW NORTH AMERICAN HOMOPTERA.—NO. VII

1894 ◽  
Vol 26 (4) ◽  
pp. 89-93 ◽  
Author(s):  
E. P. Van Duzee
Keyword(s):  
North American ◽  
Yellow Colour ◽  
Pale Yellow ◽  
Pale Yellow Colour ◽  
Black Band

1. Idiocerus Amœmus, n. sp.Allied to I. suturalis, but smaller. Female of a uniform pale yellow colour, pronotum and scutellum tin gedwith fulvous or ferruginous, the former with a spot behind the inner angle of each eye and a median vitta, pale. Mesonotum with a black band bordering the scutellum, at least posteriorly; extreme tip of scutellum yellow. Elytra hyaline very slightly tinged with fulvous, becoming smoky toward the apex; nervures pale yellow. Wings hyaline, highly iridescent. Eyes rufous. Oviduct ferruginous.

scholarly journals IX. On the constitution of the resins

1839 ◽  
Vol 129 ◽  
pp. 119-137
Keyword(s):  
Large Family ◽  
Yellow Colour ◽  
Pale Yellow ◽  
Whole Process ◽  
Relative Composition ◽  
Pale Yellow Colour ◽  
Higher Temperature

The object of the investigation, of which the present paper forms a part, is 1. To determine the relative composition of the various resins which occur in nature. Possessing so many properties in common, this large family of natural productions ought also to present many analogies in constitution. 2. To ascertain how far they may be considered as derivatives from one common radical; and 3. Whether it is possible to represent them all by one or more general formulæ. I. Resin of Mastic. Mastic resin is said to be obtained from the Pistacea lentiscus , and to be produced chiefly in the island of Chios. It occurs in drops or tears, which are transparent, and of a pale yellow colour. It melts at 212°, and emits a peculiar and not unpleasant odour. Fused in a retort it gives off an acid liquid in small quantity. If the heat be raised to 300° Fahr. and upwards, the melted mass froths up, and water and acid vapours are evolved. At a higher temperature a pale yellow liquid distils over very slowly, at first of the consistence of oil, but increasing in thickness as the process proceeds, water and acid being also given off during the whole process. What remains in the retort is of a black colour, and nearly insoluble in alcohol.

scholarly journals TRICHOGRAMMA PRETIOSA, RILEY: COLOUR VARIATION IN THE ADULT, WITH DESCRIPTION OF A NEW VARIETY

1906 ◽  
Vol 38 (3) ◽  
pp. 81-82 ◽  
Author(s):  
A. Arsene Girault
Keyword(s):  
Original Description ◽  
Distinct Species ◽  
New Variety ◽  
Yellow Colour ◽  
Colour Variation ◽  
Pale Yellow ◽  
Pale Yellow Colour ◽  
Trichogramma Minutum

In the original description of this insect, * Dr.Riley says that on account of its uniform pale yellow colour it is easily distinguished from Trichogramma minutum, Riley, which is black. Unfortunately, this does not hold.† Out of the hundreds of specimens of pretiosa reared during the enire season of 1904, at Paris, Texas, from the eggs of Heliothis obsoleta, Fabricius, there appeared from a lot of host eggs on Sept. 20th a number of dark individuals, which could easily have been mistaken for a distinct species.

scholarly journals II. Chemical examination of the fluid from the peritoneal cavity of the nematode entozoa

1865 ◽  
Vol 14 ◽  
pp. 69-70 ◽  
Keyword(s):  
Peritoneal Cavity ◽  
Muscular Tissue ◽  
Chemical Examination ◽  
Yellow Colour ◽  
Pale Yellow ◽  
Pale Yellow Colour ◽  
Offensive Odour

Some time ago Dr. Cobbold sent me a quantity of fluid which he had extracted from about seventy perfectly fresh specimens of the Ascaris megalocephala of the horse, and he requested me to make an analysis of it. I most willingly availed myself of this unusual opportunity of ascertaining the composition of this fluid, the sample procured by Dr. Cobbold being fortunately large enough for the purpose. The analysis of this fluid is interesting as showing that its composition is similar to that of juice of flesh in the higher animals, and consequently that the process of assimilation occurs in these worms much in the same way as in those animals where the organs of digestion and circulation are perfectly developed. It also shows that a fluid similar to that existing in muscular tissue is apparently elaborated by the intestines of the Ascarides , while in the higher animals this fluid is formed from the blood. The fluid was turbid, of a pale yellow colour, and emitted an offensive odour, although not of decomposition.

scholarly journals NEW SPECIES OF NORTH AMERICAN MYRMELIONIDAE.–I

1898 ◽  
Vol 30 (4) ◽  
pp. 93-96 ◽  
Author(s):  
Rolla P. Currie
Keyword(s):  
New Species ◽  
North American ◽  
Outer Side ◽  
Black Line ◽  
Anterior Portion ◽  
Black Band

Brachynemurus Coquilletti, new species.Male.—Length, 33 mm.; expanse of wings, 44 mm.; greatest width of anterior wing, 5.6 mm.; length of antenna, 6 mm.; luteous, marked with dark fuscous; clothed with white hairs, thickly so on abdomen; apical segments of abdomen with some black hairs among the white ones.Face flat, luteous, bordered above by a pitchy-black band separating the antennae and narrowly bordering them in front and on the outer side; a longitudinal median black line extends from this band almost to the clypeus. Circum-ocular area luteous, except along the anterior portion of the vertex, where it is fuscous, and on the margin next the eye, opposite the middle of anterior joint of maxillary palpiger, where there is a fuscous spot. Clypeus rather short, luteous, on either side anteriorly an impressed spot; above, a few black bristles. Labrum transverse, luteous; rounded laterally and narrowed anteriorly, nearly straight in front, where it is sparsely clothed with light-coloured hairs. Mandibles piceous, black at tips.

Palladium arsenide-antimonides from habira, Minas Gerais, Brazil

1974 ◽  
Vol 39 (305) ◽  
pp. 528-543 ◽  
Author(s):  
A. M. Clark ◽  
A. J. Criddle ◽  
E. E. Fejer
Keyword(s):  
Minas Gerais ◽  
Powder Pattern ◽  
Weak Anisotropy ◽  
Yellow Colour ◽  
Space Group ◽  
Pale Yellow Colour ◽  
Reflected Light ◽  
Cell Dimensions ◽  
Polysynthetic Twinning ◽  
Reflectance Measurements

SummaryThe arsenopalladinite concentrates from Itabira, Minas Gerais, Brazil, have been found to contain three arsenide-antimonides of palladium, namely arsenopalladinite, atheneïte, and isomertieite. The second and third of these are new minerals.Arsenopalladinite, redefined, is Pd5(As,Sb)2 and triclinic with a 7·399, b 14·063, c 7·352 Å, α 92° 03′, β 118° 57′, γ 95° 54′. Z = 6. Dmeas = 10·4, Dcalc = 10sd46. In reflected light arsenopalladinite is white with a yellowish creamy hue. The mineral shows complex polysynthetic twinning and is strongly anisotropic. Reflectance measurements at 470, 546, 589, and 650 nm respectively gave: in air, 46·67–48·86, 49·97–52·90, 52·82–54·96, and 55·61–57·72 in oil, 32·30–35·07, 37·12–39·40, 38·97–41·32, and 40·28–43·07. VHN100 379–449, av. 407.Atheneïte, (Pd, Hg)3As, is hexagonal, space group P6/mmm and cell dimensions a 6·798, c 3·483 Å. The strongest lines of the powder pattern are 2·423 vvs (111) , 2·246 vs (201), 1·371 s (212), 1·302 s (302), 1·259 s (321). Z =2. Dcalc = 10·16. In reflected light atheneïte is white with a faint bluish tint compared to arsenopalladinite. Anisotropy distinct. Untwinned. Reflectivities for the two grains examined are: in air, 470 nm 47·51–54·75, 47·43–51·18; 546 nm 50·79–58·01, 51·36–54·36; 589 nm 53·13–61·01, 53·24–55·86; 650 nm 55·94–63·13, 54·76–56·77; in oil, 470 nm 30·03–43·67, 33·46–37·31; 546 nm 33·42–47·75, 37·64–41·07; 589 nm 35·80–49·04, 39·40–42·24; 650 nm 38·25–50·49, 41·07–42·85. VHN100 419–442, av. 431.Isomertieite, (Pd,Cu)5(Sb,As)2, is cubic, space group Fd3m, a 12·283 Å. The strongest lines of the powder pattern are 2·356 vs (333, 511), 2·167 vvs (440), 0·8599 s (10.10.2, 14.2.2), 0·8206 s (12.8.4), 0·7996 s (10.10.6, 14.6.2), 0·7881 s (999, 1.11.1, 13·7·5, 15·3·3), 0·7801 s (12.10.2, 14.6.4). Z = 16. Dcalc = 10·33. In reflected light isomertieite is a pale yellow colour. One grain was isotropic, three others displayed weak anisotropy. Untwinned. Reflectance measurements at 470, 546, 589, and 650 nm gave respectively: in air, 44·74–46·46, 52·23–53·25, 55·05-57·49, 56·97–62·03; in oil, 31·04–31·40, 38·42–38·90, 40·80–42·16, and 42·91–45·63. VHN100 587–597, av. 592.Quantitative colour values are also given, and the chemical and optical properties are compared with the related mineral, stibiopalladinite.

scholarly journals NEW NORTH AMERICAN HOMOPTERA.—No. V

1892 ◽  
Vol 24 (10) ◽  
pp. 266-268 ◽  
Author(s):  
E. P. Van Duzee
Keyword(s):  
North American ◽  
Lateral Angle ◽  
Greenish Yellow ◽  
Anterior Edge ◽  
Black Band

Male: From of Th.quadrinotata, Fab., but with the vertex shorter and more depressed. Greenish-yellow; head yellow with a transverse black band on the anterior edge; body black the segments edged with yellow. Length 4½ mm.Head rounded before, very little longer at the middle than next the eye. Vertex a little depressed, anterior edge subacute; apex of the front two-thirds the width of the base, sides nearly parallel below the antennæ. Clypeus strongly widened apically where the width is but slightly less than the length, edge of the cheek rectilinear either side of the prominent lateral angle. Pronotum rather long, hind edge but moderately concave, the angles obvious.

scholarly journals Chromatic leucism in the flap shell turtle, Lissemys punctata from Bangladesh

2021 ◽  
Vol 10 (2) ◽  
pp. 131-131
Author(s):  
M.F. Rabbe ◽  
M.M. Alam ◽  
M.F. Jaman ◽  
M.S. Hossain ◽  
K.N.M. Sarafat ◽  
...  
Keyword(s):  
Wildlife Conservation ◽  
Freshwater Wetlands ◽  
Yellow Colour ◽  
Pale Yellow ◽  
Green Colour ◽  
Golden Yellow ◽  
Defence Strategy ◽  
Olive Green ◽  
Commercial Trade

The spotted flap shell turtle, Lissemys punctata (Bonnaterre, 1789) has a distribution in Bangladesh, India, Myanmar, Nepal and Pakistan. In Bangladesh, this species is widely distributed throughout the freshwater wetlands and the low-lying floodplains, coastal islands, and hill districts. This species is listed in CITES (Appendix II) and protected by Bangladesh Wildlife Conservation & Security Act 2012 (Schedule II), where commercial trade is strictly prohibited. Lissemys punctata has an oval and domed carapace with olive-green colour spotted by dark yellow blotches. The head is also olive green often with yellow blotches, whereas the plastron is whitish or pale yellow. The colour of this species may vary depending on its habitat and defence strategy. Colour aberration in animals may occur due to a lack of melanin. Golden yellow colour aberration (chromatic leucism) is rare in animals, especially in turtles. This might be because of the absence of melanin in the outer dermis. The presence of high xanthophores and yellow pteridine pigments in the skin are also responsible for the golden yellow colour aberration.

Pseudomonas tolaasii. [Descriptions of Fungi and Bacteria].

1987 ◽  
Author(s):  
J. F. Bradbury
Keyword(s):  
Geographical Distribution ◽  
Agaricus Bisporus ◽  
Primary Sources ◽  
Yellow Colour ◽  
Pseudomonas Tolaasii ◽  
Pale Yellow Colour ◽  
Sources Of Infection ◽  
Serious Disease ◽  
The Right ◽  
Apparently Healthy

Abstract A description is provided for Pseudomonas tolaasii. Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. HOSTS: Agaricus bisporus, A. bitorquis, A. arvensis, A. campestris, edible mushrooms. Also reported to cause losses on Pleurotus eryugii and P. ostreatus (65, 1655). DISEASE: Bacterial blotch of cultivated mushrooms. Spots of a pale yellow colour arise on the caps as they expand. These enlarge and become dark brown, often wet and sunken, and may coalesce. Stalks are also frequently attacked. The infection does not penetrate deeply, but renders the mushroom unsaleable. GEOGRAPHICAL DISTRIBUTION: Reported from China (62, 2744), India (57, 2373), Israel (60, 4791) Taiwan (59, 3507), Australia (NSW, Qd, Tas., Vict., 63, 3168), New Zealand (culture in PDDCC), Denmark, France (30: 554), Italy (50, 3375), Netherlands (37: 66), Rumania (42: 359), UK, USA (MD 37: 66, ME 64, 1386, MN, MO, PA 60, 2315). Probably much more widespread than these records suggest. TRANSMISSION: On one farm studied in England the primary sources of infection were the peat and limestone used in the casing process. One percent and two percent of samples respectively yielded the bacterium, which was apparently present as a normal constituent of the associated micro-flora. Water, soil spawn and spawned compost were all found to be free of infestation (Wong & Preece, 1980). Under the right conditions these low numbers are able to increase sufficiently to cause serious disease in beds. Agents of secondary spread within an infested farm are many and complex. Wong & Preece were able to isolate the pathogen from workers' hands, clothing, baskets, ladders, knives, and from cropping house floors. The organism was also trapped from the air inside and just outside infested houses, and in low numbers near the bed surfaces of apparently healthy houses. Spores discharged from diseased mushrooms seemed seldom to carry bacteria, but sciarid flies (Lycorilla sp.) and mites (Tyrophagus sp.) are able to carry infection.

scholarly journals A CONTRIBUTION TO THE KNOWLEDGE OF NORTH AMERICAN SYRPHIDÆ

1896 ◽  
Vol 28 (4) ◽  
pp. 87-101 ◽  
Author(s):  
W. D. Hunter
Keyword(s):  
North American ◽  
Apical Half ◽  
Black Band

Male.—Eyes contiguous for about two thirds their width above, densely long, white pilose, with a sharply defined vertical black band about one-fifth their width; above, the two bands are confluent. Occiput shining olivaceous, white pilose. Ocellar area with a tuft of ferrugineous pile. Spot above the antennæ bare, shining black. Face shining black, except the tip of the indistinct tubercle, which is opaque; covered, except an indistinct median stripe, and more densely below, with abundant long light yellowish pile; very indistinctly concave below the antenné. Cheeks shining olivaceous, except ati anterior velvety cross-band and an indistinct spot below the lowest margin of the eyes; long yellow pilose. Palpi clavate, testaceous at base, apical half black.

A NEW SPECIES OF PSEUDOHAZIS FROM WASHINGTON (LEPIDOPTERA, SATURNIIDAE)

1944 ◽  
Vol 76 (5) ◽  
pp. 112-112
Author(s):  
W. P. Medlar
Keyword(s):  
New Species ◽  
Anterior Margin ◽  
Brilliant Yellow ◽  
Pale Yellow ◽  
Bright Yellow ◽  
Black Band ◽  
Deep Yellow ◽  
A New Species

Male lappets vivid deep yellow. Dorsal and ventral sides of abdomen deep bright yellow with a narrow black band on the anterior margin of each segment. The appearance of the species is intermediate between eglanterina and hera, differing most conspicuously from these two in wing color. Primaries pale yellow faintly tinged with pink, but much less intense than in eglanterina. Secondaries brilliant yellow.

Sign in / Sign up

Export Citation Format

Share Document