''Eupeodes rojasi'' is a species of
hoverfly
Hoverflies, also called flower flies or syrphids, make up the insect family Syrphidae. As their common name suggests, they are often seen hovering or nectaring at flowers; the adults of many species feed mainly on nectar and pollen, while the l ...
.
[Thompson, F. Christian. "A key to the genera of the flower flies (Diptera: Syrphidae) of the Neotropical Region including descriptions of new genera and species and a glossary of taxonomic terms used." (1999).] It is named after Sergio Rojas, the administrator of the Subestación Experimental La Cruz (Chile). It feeds on ''
Eriosoma lanigerum
''Eriosoma lanigerum'', the woolly apple aphid, woolly aphid or American blight, is an aphid in the superfamily Aphidoidea in the order Hemiptera. It is a true bug and sucks sap from plants.
Description
The adults of ''Eriosoma lanigerum'' are ...
'' and is found in western South America.
Description
Its face is yellow except for a narrow brown medial
vitta. Its
gena is yellow and shiny. Its frontal lunule is brown except yellowish medially. The
antenna is orange ventrally and blackish brown dorsally. Its basoflagellomere is oval, about 3 times as long as the
pedicel
Pedicle or pedicel may refer to:
Human anatomy
*Pedicle of vertebral arch, the segment between the transverse process and the vertebral body, and is often used as a radiographic marker and entry point in vertebroplasty and kyphoplasty procedures
...
.
Its thorax is dark bluish black The
scutum is dark bluish black except yellowish on the
notopleuron. The
pronotum
The prothorax is the foremost of the three segments in the thorax of an insect, and bears the first pair of legs. Its principal sclerites (exoskeletal plates) are the pronotum (dorsal), the prosternum (ventral), and the propleuron (lateral) on e ...
is densely yellowish gray. Its
halter
A halter or headcollar is headgear placed on animals used to lead or tie up livestock and, occasionally, other animals; it fits behind the ears (behind the poll), and around the muzzle. To handle the animal, usually a lead rope is attached. ...
is yellow. Legs:
coxae and
trochanter
A trochanter is a tubercle of the femur near its joint with the hip bone. In humans and most mammals, the trochanters serve as important muscle attachment sites. Humans have two, sometimes three, trochanters.
Etymology
The anatomical term ' ...
s are blackish brown;
metatarsus
The metatarsal bones or metatarsus (: metatarsi) are a group of five long bones in the midfoot, located between the tarsal bones (which form the heel and the ankle) and the phalanges ( toes). Lacking individual names, the metatarsal bones are ...
brownish orange on its basotarsomere and apical
tarsomere, black elsewhere.
Its wing is
hyaline
A hyaline substance is one with a glassy appearance. The word is derived from , and .
Histopathology
Hyaline cartilage is named after its glassy appearance on fresh gross pathology. On light microscopy of H&E stained slides, the extracellula ...
and
microtrichose except bare basomedially. The abdomen is black with yellow
maculate pattern. Its 1st
tergum
A ''tergum'' (Latin for "the back"; : ''terga'', associated adjective tergal) is the dorsal ('upper') portion of an arthropod
Arthropods ( ) are invertebrates in the phylum Arthropoda. They possess an arthropod exoskeleton, exoskeleton wi ...
is bluish black; 2nd tergum is black except for large yellow basolateral
macula
The macula (/ˈmakjʊlə/) or macula lutea is an oval-shaped pigmented area in the center of the retina of the human eye and in other animals. The macula in humans has a diameter of around and is subdivided into the umbo, foveola, foveal avas ...
; 3rd tergum is black except for large yellow
fascia
A fascia (; : fasciae or fascias; adjective fascial; ) is a generic term for macroscopic membranous bodily structures. Fasciae are classified as superficial, visceral or deep, and further designated according to their anatomical location.
...
; 4th tergum is black except for large yellow fascia and apical margin; 5th tergum is yellow except for a basomedial narrow black fascia. Its 1st sternum is yellow except for a small medial brown macula; 2nd sternum is yellow except for large triangular black medial macula; 3rd sternum is yellow except for a large triangular black medial macula; 4th sternum is yellow except for a small brown medial macula; 5th sternum is yellow. Its
terminalia
Terminalia may refer to:
* Terminalia (festival)
Terminalia () was an ancient Roman festival in honour of the god Terminus, who presided over boundaries. His statue was merely a stone or post stuck in the ground to distinguish between propert ...
are yellow except for the 8th sternum, which is largely black with black
pilose.
See also
*
Insect anatomy
Insect morphology is the study and description of the physical form of insects. The terminology used to describe insects is similar to that used for other arthropods due to their shared evolutionary history. Three physical features separate inse ...
References
External links
ADW entry*
Diptera of Europe
Syrphini
Insects described in 1999
{{Syrphidae-stub