ENTOMOLOGICAL NOTES

1869 ◽  
Vol 1 (8) ◽  
pp. 65-67
Author(s):  
W. Saunders

HesPeria mystic, Edw.–Two eggs were deposited by a beaten female in a pill box, on the 20th of June, colour pale yellowish green: strongly convex above, flattened below, and depressed or slightly concave in the centre of the flattened portion. The surface appears smooth under a magnifying power of forty.five diameters, whereas in those of Hobomok, reticulations are plainly seen under a power of twenty. The egg of Mystic appears faintly reticulate under a power of eighty diameters. One specimen produced the larva on the 28th, the other on the 29th.

HortScience ◽  
2014 ◽  
Vol 49 (11) ◽  
pp. 1381-1391 ◽  
Author(s):  
Hai-Fang Yang ◽  
Hye-Ji Kim ◽  
Hou-Bin Chen ◽  
Jillur Rahman ◽  
Xing-Yu Lu ◽  
...  

Litchi trees flower at the apex of terminal shoots. Flowering is affected by the maturity of terminal shoots before growth cessation occurs during the winter. In this study, we focused on changes of flowering in three important cultivars, Guiwei, Feizixiao, and Huaizhi, from Dec. 2012 to Mar. 2013 under natural winter conditions. Flowering rate, carbohydrate accumulation, and expression of the flowering-related genes were determined at three different developmental stages of terminal shoots with dark green, yellowish green and yellowish red leaves, respectively. The results showed that the total soluble sugar and starch contents in the dark green leaves were the highest, whereas those in the yellowish red leaves were the lowest. Trees with dark green terminal shoots had the highest flowering rates, whereas those with yellowish green or yellowish red shoots had relatively lower flowering rates. SPAD was highest in dark green leaves and lowest in yellowish red leaves at the start of the trial. The SPAD value of yellowish red leaves slightly increased but did not reach the levels of the dark green leaves, whereas levels of the other leaf stages remained fairly constant. Expression level of the litchi homolog FLOWERING LOCUS C (LcFLC), the floral inhibitor in yellowish red leaves, increased from 16 Jan., whereas that in dark green leaves declined to a level lower than the yellowish red leaves on 4 Feb. Expression level of the litchi homolog CONSTANTS (LcCO), the floral promoter in dark green leaves, was higher than that of yellowish red leaves before 26 Jan. Expression level of the litchi homolog FLOWERING LOCUS T 2 (LcFT2), encoding florigen, was higher in dark green leaves than in the other two leaf types. Our results suggest that terminal shoots should be matured and leaves should turn green for successful flowering. Mature leaves had higher expression levels of the floral promoter and florigen. In litchi production, leaves of the terminal shoots (potential flowering branches) should be dark green during floral induction and differentiation stages, and winter flushes should be removed or killed.


Mind ◽  
2020 ◽  
Author(s):  
Brian Cutter

Abstract It is common for an object to present different colour appearances to different perceivers, even when the perceivers and viewing conditions are normal. For example, a Munsell chip might look unique green to you and yellowish green to me in normal viewing conditions. In such cases, there are three possibilities. Ecumenism: both experiences are veridical. Nihilism: both experiences are non-veridical. Inegalitarianism: one experience is veridical and the other is non-veridical. Perhaps the most important objection to inegalitarianism is the ignorance objection, according to which inegalitarianism should be rejected because it is committed to the existence of unknowable colour facts (for example, facts about which objects are unique green). The goal of this paper is to show that ecumenists are also committed to unknowable colour facts. More specifically, I argue that, with the exception of colour eliminativism, all major philosophical theories of colour are committed to unknowable colour facts.


2017 ◽  
Vol 26 (2) ◽  
pp. 209-211
Author(s):  
V.I. Gontar’

A new species, Isoschizoporela marisweddelli sp. nov., from the bryozoan order Cheilostomatida was described within the genus endemic for Antarctic waters. Fragments of colonies of the species were found in the Weddell Sea by the German Antarctic Expedition ANT XIII/3 on the research vessel “Polarstern” in 1996. The species is distinguished from the other species of Isoschizoporella by the incrusting colony, elongate, hexagonal and convex autozooids, semicircular primary orifice with shallow sinus, strongly convex avicularian chamber, avicularium with semicircular mandible, and additional avicularium on frontal surface of autozooid. The species belongs to the infraorder Ascophora, superfamily Schizoporelloidea.


ZooKeys ◽  
2019 ◽  
Vol 825 ◽  
pp. 123-144
Author(s):  
Boonsatien Boonsoong ◽  
Michel Sartori

Three species of the genus Prosopistoma Latreille, 1833 (Prosopistomatidae) are currently reported from Thailand. A new species, Prosopistomacarinatumsp. n., is described here based on specimens from western and southern Thailand. The new species can be easily distinguished from the other members of Prosopistoma by the following combination of characteristics: (i) the presence of two ridged longitudinal lines on each side of its carapace, (ii) antenna 7-segmented, (iii) a strongly convex carapace and (iv) nine pectinate setae on the ventral margin of the fore tibiae. A comparison between the key characteristics of P.carinatumsp. n. and the known Thai species is provided. Results of analysis of the mitochondrial cytochrome oxidase I (COI) gene (658 bp) of three species, as well as the distribution of the Thai species, are also discussed.


1956 ◽  
Vol 2 (3) ◽  
pp. 477-483 ◽  
Author(s):  
Eckhard H. Hess

A technique has been described whereby preferences of animals for a large number of stimuli can be studied simultaneously, and the responses automatically recorded. Groups of Ss are presented with a number of colored stimuli on the sides of an enclosure. Pecks are recorded on electrical counters. Data are presented showing that differential responses to colored objects do occur in chicks ( N=200) and ducklings ( N=100) that have had very limited visual experience and no opportunity for directed learning. It must therefore be supposed that these responses are innately organized. For the chicks there is a bimodal preference to color, with one peak occurring in the orange region of the spectrum and a second peak in the blue region. The ducklings, on the other hand, have a narrower range of preference with a single sharp peak within the green and yellowish-green region. The color preference curves of chicks and ducklings are obviously quite dissimilar. The dissimilarity suggests some functional determinant, but the nature of the determinant is as yet unknown.


2015 ◽  
Vol 3 (1) ◽  
Author(s):  
Benjamin Miesch

Abstract We investigate how to glue hyperconvex (or injective) metric spaces such that the resulting space remains hyperconvex. We give two new criteria, saying that on the one hand gluing along strongly convex subsets and on the other hand gluing along externally hyperconvex subsets leads to hyperconvex spaces. Furthermore, we show by an example that these two cases where gluing works are opposed and cannot be combined.


1948 ◽  
Vol 13 (4Part1) ◽  
pp. 323-325 ◽  
Author(s):  
John M. Goggin ◽  
Irving Rouse

A stone ax of West Indian type is included among the collections from north Florida in the Florida State Museum (cat. no. 3535). In view of the ever-interesting question of Antillean-Floridian relationships, this specimen seems worth considering in some detail.Information in the Florida State Museum catalog indicates that the ax was received in 1914 from A. W. Sargent of Gainesville who found it on the surface near Newnan's Lake, Alachua County. This is about five miles east of Gainesville. It was accompanied by the base of a spearhead, an arrowhead, and a sherd of St. Johns Check Stamped pottery (cat. nos. 3536-3538).The ax has a roughly rectangular blade; shallow, grooved neck; and broad butt, with a large ear-like projection on either side of the butt and a pair of smaller ones on top (Fig. 55). In cross section, one side is strongly convex and the other partially flattened, so that the artifact might more properly be called an “adze.” Its length is 15.8 cm. and its width 10.9 cm.


1988 ◽  
Vol 62 (03) ◽  
pp. 411-419 ◽  
Author(s):  
Colin W. Stearn

Stromatoporoids are the principal framebuilding organisms in the patch reef that is part of the reservoir of the Normandville field. The reef is 10 m thick and 1.5 km2in area and demonstrates that stromatoporoids retained their ability to build reefal edifices into Famennian time despite the biotic crisis at the close of Frasnian time. The fauna is dominated by labechiids but includes three non-labechiid species. The most abundant species isStylostroma sinense(Dong) butLabechia palliseriStearn is also common. Both these species are highly variable and are described in terms of multiple phases that occur in a single skeleton. The other species described areClathrostromacf.C. jukkenseYavorsky,Gerronostromasp. (a columnar species), andStromatoporasp. The fauna belongs in Famennian/Strunian assemblage 2 as defined by Stearn et al. (1988).


1967 ◽  
Vol 28 ◽  
pp. 207-244
Author(s):  
R. P. Kraft

(Ed. note:Encouraged by the success of the more informal approach in Christy's presentation, we tried an even more extreme experiment in this session, I-D. In essence, Kraft held the floor continuously all morning, and for the hour and a half afternoon session, serving as a combined Summary-Introductory speaker and a marathon-moderator of a running discussion on the line spectrum of cepheids. There was almost continuous interruption of his presentation; and most points raised from the floor were followed through in detail, no matter how digressive to the main presentation. This approach turned out to be much too extreme. It is wearing on the speaker, and the other members of the symposium feel more like an audience and less like participants in a dissective discussion. Because Kraft presented a compendious collection of empirical information, and, based on it, an exceedingly novel series of suggestions on the cepheid problem, these defects were probably aggravated by the first and alleviated by the second. I am much indebted to Kraft for working with me on a preliminary editing, to try to delete the side-excursions and to retain coherence about the main points. As usual, however, all responsibility for defects in final editing is wholly my own.)


1967 ◽  
Vol 28 ◽  
pp. 177-206
Author(s):  
J. B. Oke ◽  
C. A. Whitney

Pecker:The topic to be considered today is the continuous spectrum of certain stars, whose variability we attribute to a pulsation of some part of their structure. Obviously, this continuous spectrum provides a test of the pulsation theory to the extent that the continuum is completely and accurately observed and that we can analyse it to infer the structure of the star producing it. The continuum is one of the two possible spectral observations; the other is the line spectrum. It is obvious that from studies of the continuum alone, we obtain no direct information on the velocity fields in the star. We obtain information only on the thermodynamic structure of the photospheric layers of these stars–the photospheric layers being defined as those from which the observed continuum directly arises. So the problems arising in a study of the continuum are of two general kinds: completeness of observation, and adequacy of diagnostic interpretation. I will make a few comments on these, then turn the meeting over to Oke and Whitney.


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