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What

Beetles (Order Coleoptera)

Observer

josev_ge

Date

November 14, 2021 11:20 AM -03

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Observer

bellbird20

Date

May 12, 2021 09:26 PM -04

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Observer

camilamagro

Date

October 25, 2021 10:09 AM -03

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Observer

mariana912

Date

December 13, 2021 01:44 PM -03

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Observer

danielmesa1

Date

February 3, 2022 05:03 PM -05

Description

Larvas de escarabajo alimentándose entre raíces de orquídeas. Algunas han entrado en el proceso de metamorfosis.

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Observer

caiocrelier

Date

December 15, 2020 12:00 AM -03

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Date

December 2016

Description

Fungus beetle. It wipes a leg across itself in the second and third pictures.

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Observer

carolyscarolinis

Date

November 28, 2021 12:40 PM -03

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Observer

marceloamores

Date

October 24, 2021 08:45 AM -05

Description

BIDENS ANDICOLA H.B.K., Nov. Gen. et Sp. 4:237 (186). 1820; B. andicola H.B.K. vars. normalis and heterophylla O. Kuntze, Rev. Gen. PI. 3^II^: I36. 1898; B. fruticulosa Mey. and Walp., Nov. Act. Nat. Cur. 19 Supplem. I. 271. 1843.

Descript. amplific.- Herba perennis, semi-procumbens vel etiam erecta, valde hispido-pubescens vel fere glabra, ramosa, 2-8 dm. alta, caulibus parce angulatis. Folia 1-7 cm. longa, valde polymorpha; nunc indivisa, ovata, serrata, sessilia vel alato-petiolata, ad apicem obtusa vel subacuta; nunc tripartite vel 1-3-pinnata foliolis ovatis vel lanceolatis vel linearibus et ad apicem sensim vel abrupte apiculatis. Capitula ramos terminantia, longe pedunculata, radiata; pansa ad anthesin 2-4 vel rarius etiam usque ad 5.5 cm. lata, 0.7-1.4 cm. alta. Involucrum perspicue hispidum, bracteis ex-terioribus 8-10, lanceolatis vel lineari-oblongis, ciliatis, supra saepe glabratis, apice plerumque obtusis, quam interioribus lanceolatis dense hispidis plerumque multo brevioribus. Flores ligulati saepius 8, lutei, ligula elliptico-oblanceolati, apice plerumque minute 3-denticulati, 1.2-2.5 cm. longi. Achaenia tenuiter linearia, inferne sensim attenuate, obcompresso-quadrangularia, sulcata, supra plus minusve erecto-hispida, fusco-nigra, corpore 0.7-1.4 cm. longa et 0.4-1 mm. lata et paleas demum superantia, apice bi- (vel pauca tri-) aristata, aristis tenuibus, brunneo-stramineis vel rubescentibus, re-trorsum hamosis, 1.7-3 mm. longis.

BIDENS ANDICOLA var. DECOMPOSITA O. Kuntze, I.c.; B. macrantha Griseb., Abhandl. Goett. I9:I38 I874; B. grandiflora Balb. var. breviloba 0. Kuntze, I.c.-Folia 2-3-pinnatisecta, usque ad I dm. longa, achaeniis superne valde attenuato-elongata.

For many years the identity of the South American Bidens andicola has been obscured for herbarium workers by the great multiplicity of foliage forms encountered. WEDDELL, as early as 1856 (Chloris And. 1870) described it as a polymorphous plant ("Plante polymorphe et très repande dans la chaine, mais presque exclusivement alpestre"). Later, OTTO KUNTZE, who like WEDDELL had collected in South America, commented upon the variability of the leaves ("Eine robuste Art mit einfach oder mehrfach ternatisecten Blättern, mittelgrossen gelben Strahlblüthen, ziemlich grossen Blüthenköpfen, äusseren zottig behaarten Involucralbracteen etc., aber in Bezug auf Blatttheilung wie manche andere Bidens-Art sehr variabel"; Rev. Gen. Pl. 3^II^: 136. 1898). In herbaria the numerous foliage forms are seen to simulate corresponding forms of B. triplinervia H.B.K. (B. humilis H.B.K., B. crithmifoliac H.B.K., etc.), and this has led often to confusion between the two species. Recently I was enabled, through the courtesy of OTTO BUCHTIEN (cf. SHEREFF, BOT. GAZ. 76: 151. 1923), to study a great number of specimens collected by him and displaying a wide range of variation. From these (all in Herb. Field. Mus.) and many others, totalling more than two hundred specimens, the preceding descriptions are drawn. It was found that sometimes, in poorly developed material, distinction from B. triplinervia is apparently impossible. In well developed material, however, the distinctions are usually very definite, B. andicola being coarser, its thicker heads having commonly about eight instead of commonly about five rays[4], etc. B. andicola has the paleae shorter than the mature achenes and this character separates it from the surprisingly similar aggregation of Mexican forms (Purpus 1547, 1548, 2637, 4135, 5089, 5620; Rose and Painter 6666, 7949; Pringle 4915; E. W. Nelson 3220, etc.) that in late years have passed erroneously under the name B. daucifolia DC. In the latter[5] the paleae are usually very blackish above and commonly surpass the mature achenes.

Occasionally a form of B. andicola is found with the leaves highly compound and the achenes strongly narrowed above, somewhat like those of Cosmos. If it were not for various connecting forms this would seem to be specifically distinct. KUNTZE, who himself collected specimens of it, referred at least one of them, a plant from Cochabamba, Bolivia (Herb. N.Y. Bot. Gard.) to B. andicola, naming it var. decomposita. In a careless moment he named a precisely identical form from between Cochabamba and Rio Juntas, Bolivia (Herb. N.Y. Bot. Gard.) B. grandiflora Balb. var. breviloba, although B. grandifjora is a Mexican species and is not known to occur in South America.

[4] Unfortunately, B. triplinervia produces at times an 8-rayed form. Discussion of this form must be deferred until a later date.

Sherff, E. E. (1926). Studies in the Genus Bidens. VII. Botanical Gazette, 81(1), 25-54.>>

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Observer

gasperinbio

Date

September 19, 2021 10:38 AM -03

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Observer

rstlaurent

Date

August 29, 2021 07:25 PM EDT

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Observer

egiehl

Date

December 16, 2007 12:58 PM -02

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Observer

mateus21

Date

April 28, 2020 03:05 PM -03

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What

Tiger Moths (Tribe Arctiini)

Observer

anderson62

Date

November 19, 2020 04:04 PM -03

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Observer

wellington2902

Date

October 24, 2020 10:36 AM -03

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Observer

eridiane

Date

November 13, 2016 09:15 PM -02

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Observer

flsantos

Date

October 14, 2008 11:53 PM -04

Description

Host plant: Calliandra tweediei Benth. [Fabaceae]. The nympha is camouflaged with the leaflets.

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What

Stripe-backed Bittern (Ixobrychus involucris)

Observer

edithester

Date

October 1, 2020 09:23 AM -03

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Observer

isadoraquintana

Date

August 28, 2020 12:28 AM -03

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Observer

isadoraquintana

Date

August 4, 2020 06:07 PM -03

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Observer

rontavius

Date

June 28, 2020 05:08 PM -03

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Observer

elisa_groll

Date

January 20, 2014 04:30 PM -02

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What

Tropical House Gecko (Hemidactylus mabouia)

Observer

onildo_marini

Date

May 25, 2020 10:10 AM -03

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Observer

sitiocandeias

Date

February 19, 2020

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Observer

tsssss

Date

July 2019

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What

Rufous-thighed Kite (Harpagus diodon)

Observer

joaoquental

Date

January 28, 2020 11:19 AM -03

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What

Tropical House Gecko (Hemidactylus mabouia)

Observer

jeffharding

Date

May 22, 2014 08:53 AM PDT

Description

See the full description here: Herpetological Review 47(1), 2016
HEMIDACTYLUS MABOUIA (Tropical House Gecko). PREDATION, Vecchi and Harding (2016)

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What

Chestnut-backed Tanager (Stilpnia preciosa)

Observer

lexthelorax

Date

January 15, 2020 09:22 AM -02

Description

This juvenile is sibling to the one in the previous post, and the offspring of the adult female with a similar infection (posted earlier in Jan 2020)

Photos / Sounds

Observer

fmiudo

Date

October 29, 2019 07:44 AM -03

Description

Species not registered I guess.

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