#寻找头条生活家 #
Surprise, the aphid-eating fly family adds a new Ding
Gu Guoqiang
Aphid-eating flies are a large family of diptera insects, and I alone have documented nearly 20 species. Although the name of the aphid fly carries the word "fly", it is easy to make people think of the nasty fly, but the aphid fly is completely different from the habit of the fly. Aphid-eating insects feed on aphids in the larval stage, and after adults, they mostly feed on pollen and nectar, that is to say, aphid-eating flies "childhood" is a fighter to eliminate aphids, and "adults" teach pollen to plants like bees, so they are doing things that are beneficial to humans throughout the life cycle, and according to human evaluation standards for insects, they are genuine "beneficial insects".
I found some of the recorded aphid-eating flies
Most of the aphid-eating flies wear clothing similar to bees, which is not as ugly as flies, so it is often mistaken for a small bee by people who are not familiar with it. Of course, the aphid-eating flies are not dressed up to make humans look good, but to simulate bees with few natural enemies, so that predators think that they are stinging bees, thereby reducing their attack on them.
The largest known aphid fly in Dalian is the Feather Wide Shield Aphid Fly
I have always felt that at least the existing aphids in Dalian have been basically found by me, so I have begun to pay less attention to them, but yesterday (2021-07-19) once again made my eyes light up. Because I found a new member of the Dalian aphid fly family.
Dalian is the most common black-banded aphid fly
Yesterday afternoon, the sky was covered with thin clouds, and the slight southwest wind brought freshness, and I happily walked out of the house to see if I could find the insects I liked. But as soon as I stepped out of the gate of the community, I was attracted by a cluster of insects flying on the holly guard grass. Stop and observe, it turns out that they are the most common bee flies. So I kept going, but just took a step and stopped, because the color of an aphid fly that fell on the holly grass flower was somewhat different, it turned out to be bright yellow, which is rare among bee fly insects. Unfortunately, when I pointed the camera at it, it was gone. I continued to walk forward with doubts, and after walking out of tens of meters, I was more and more eager to find out who this unusual guy really was. So back.
The unique javanese psychic fly has a broken dorsal tail
I searched around the holly grass, two or three circles, and finally found the bright yellow aphid fly, so I followed it step by step and seized the opportunity to lock it in the camera. It's really different, not only is it particularly yellow, but it also has a difference in form, and I've never seen an aphid fly whose back and tail are not connected. Who is it?
This angle makes it clearer to see the Javanese psychetta fly like a dorsal armor on its back
The normal aphid-eating fly is like the long-winged thin-bellied aphid fly, with its back and tail connected into one
When I got home, I first checked the local insect records of Dalian, but there was none. So I went through other relevant materials and finally found that it was a Javanese psychetta fly. According to the hebei university museum, the specimen was collected on August 8, 2004 in Erdaohe, Changbai Mountain. Javanese aphid fly is found in Shaanxi, Guangxi, Sichuan and Yunnan. If this information is credible, it will be of great significance to find it in Dalian.
This angle makes it possible to clearly see the basic characteristics of the Javanese heterotrophic aphid fly
Many people think that insect hunting is a boring thing, in fact, it is not, due to the limited professional staff, China's insect distribution record blank is very large, if every natural ecology enthusiast can participate in the survey, will make China's insect distribution data gradually improved, which will play an important role in the promotion of natural ecological protection work. Insects are also ecological indicator species, and the regional extinction of any species of insect proves that the natural ecology of the area has changed (or "deteriorated"), and such investigations are the basis for government decisions.
Recognize it from a lateral posterior angle
Although there are nearly 10,000 species of insects in dalian in theory, but the real discovery of more than a thousand species, due to the lack of data, even if there are species extinct is not known, it is like even if the environment deteriorates is not known, and when people really perceive it, it may be impossible to remedy. In fact, in recent years, I have found many insects, due to limited information and limited energy, many of them have not been able to determine the name, so more interested readers and friends need to join the team of insect investigation and research.
Thank you for your attention, the follow-up is more exciting.