Context: The bee hummingbird, zunzuncito or Helena hummingbird ("Mellisuga helenae") is a species of hummingbird., Brazil, officially the Federative Republic of Brazil, is the largest country in both South America and Latin America. As the world's fifth-largest country by both area and population, it is the largest country to have Portuguese as an official language and the only one in the Americas. Bounded by the Atlantic Ocean on the east, Brazil has a coastline of . It borders all other South American countries except Ecuador and Chile and covers 47.3% of the continent's land area. Its Amazon River basin includes a vast tropical forest, home to diverse wildlife, a variety of ecological systems, and extensive natural resources spanning numerous protected habitats. This unique environmental heritage makes Brazil one of 17 megadiverse countries, and is the subject of significant global interest and debate regarding deforestation and environmental protection., Birds (Aves), also known as avian dinosaurs, are a group of endothermic vertebrates, characterised by feathers, toothless beaked jaws, the laying of hard-shelled eggs, a high metabolic rate, a four-chambered heart, and a lightweight but strong skeleton. Birds live worldwide and range in size from the bee hummingbird to the ostrich. They rank as the class of tetrapods with the most living species, at approximately ten thousand, with more than half of these being passerines, sometimes known as perching birds or, less accurately, as songbirds., Hummingbirds are birds from the Americas that constitute the family Trochilidae. They are among the smallest of birds, most species measuring . Indeed, the smallest extant bird species is a hummingbird, the 5-cm bee hummingbird weighing less than a U.S. penny (2.5 g)., Chlorostilbon is a genus of hummingbird in the family Trochilidae , known as emeralds ( as are some hummingbirds in the genera Amazilia and Elvira ) . A single species , the blue - chinned sapphire is variously placed in the monotypic genus Chlorestes or in Chlorostilbon . The taxonomy of the C. mellisugus superspecies is highly complex and , depending on view , includes 1 - 8 species . All species in this genus have straight black or black - and - red bills . The males are overall iridescent green , golden - green or bluish - green , and in some species the tail and / or throat is blue . The females have whitish - grey underparts , tail - corners and post-ocular streak ., The Atlantic Forest is a terrestrial biome and region which extends along the Atlantic coast of Brazil from Rio Grande do Norte state in the north to Rio Grande do Sul state in the south, and inland as far as Paraguay and the Misiones Province of Argentina, where the region is known as Selva Misionera., Trinidad (Spanish: "Trinity") is the larger and more populous of the two major islands and numerous landforms which make up the island nation of Trinidad and Tobago. The island lies off the northeastern coast of Venezuela and sits on the continental shelf of South America. Though geographically part of the South American continent, from a socio-economic standpoint it is often referred to as the southernmost island in the Caribbean. With an area of , it is also the sixth largest in the West Indies., Ants are eusocial insects of the family Formicidae and, along with the related wasps and bees, belong to the order Hymenoptera. Ants evolved from wasp-like ancestors in the Cretaceous period, about 99 million years ago and diversified after the rise of flowering plants. More than 12,500 of an estimated total of 22,000 species have been classified. They are easily identified by their elbowed antennae and the distinctive node-like structure that forms their slender waists., Trochilinae is a subfamily of the hummingbird family (Trochilidae). Members of the subfamily Trochilinae are sometimes called typical hummingbirds. They typically display iridescent plumage in metallic reds, oranges, greens and/or blues. Strong sexual dimorphism in plumage and size is evident in many species., Amazilia is a hummingbird genus in the subfamily Trochilinae. It occurs in tropical Central and South America., Tobago is an autonomous island within the Republic of Trinidad and Tobago. It is located northeast of the mainland of Trinidad and southeast of Grenada. The island lies outside the hurricane belt. According to the earliest English-language source cited in the "Oxford English Dictionary", Tobago bore a name that has become the English word "tobacco." The national bird of Tobago is the cocrico., The blue-chinned sapphire ("Chlorestes notata") is a hummingbird that breeds from Colombia south and east to the Guianas, Trinidad, Peru, and Brazil. There have been occasional records from Tobago. For Brazil, the species' range is along the main Amazon River Basin, as well as the Atlantic Forest, both in the northeast, as well as far south on the southeast coastal strip, (an entire coastal strip, north-east-south of about 3000 km). It is sometimes placed in the genus "Chlorostilbon"., Subject: chlorostilbon, Relation: parent_taxon, Options: (A) amazilia (B) area (C) argentina (D) bird (E) chlorestes (F) chlorostilbon (G) elvira (H) insects (I) mellisuga (J) ostrich (K) trochilidae (L) trochilinae
Output: trochilinae