Reed black fly comb-footed spider

Reed black fly comb-footed spider
Reed black fly comb-footed spider, female mature form
Classification
界 : Animal kingdom Animalia The gate : Arthropoda Arthropoda Rope : Spider rope Arachnida Eyes : Spider eyes Araneae Course : Comb-footed spider department Theridiidae The genus : Reed black fly comb-footed spider genus Anelosimus Kind : Reed black fly comb-footed spider A. crassipes
Scientific name
Anelosimus crassipes (Boesenberg et Strand)
Japanese name
Reed black fly comb-footed spider (足太姫蜘蛛)

Male mature form

Reed black fly comb-footed spider Anelosimus crassipes (Boesenberg et Strand) is a spider of the comb-footed spider department. I put an irregular net on the branch points. It is extremely a cosmopolite, but it is found that I eat pollen and is an interesting spider on the habit side when it is known that I do child care.

Table of contents

Characteristic

The length is a small spider of around 2.8-4mm in 3.5-4.6mm, males in females. Cephalothoraces is ovoid, and a neck groove, an emission gap are clear. . With the wave pattern crest red-brown in the center back as for the abdomen in ovoid from blackish brown [¹]. The lozenge-like ようにも vanity that three crests form a line lengthwise [²], the outside may be whitish, and this crest is outstanding. Furthermore, the outside becomes the brown [³].

The end of the male first leg femur becomes big. A reason [⁴] that another name included ハガタグモ, chain comb-footed spider, コノハヒメグモ.

Distribution and biotope

I am known from Honshu, Shikoku, Kyushu and the South-West Islands from Hokkaido. I am known from Korea and China in the foreign territory [⁵].

The forest close to the shore has many it, but is seen widely from the level ground to the mountainous district. There is many it in the forest or the forest road, but is seen in a Shinto shrine and the park [⁶].

including the habits

I set up an irregularity network between a branch and the leaves of the tree. The thread of the net has 粘球 [⁷]. There is the example to put in combination a tent-formed seat on [⁸]. A broadleaf tree in particular has many it [⁹].

As the special habits, this seed sets up a net to the flower of the Japanese pittosporum in Miyazaki, and it is confirmed to eat pollen and honey. This is the first report that a spider ate the bait of the vegetable property in Japan [¹⁰].

There is the report with becoming it, but is thought about the life cycle with two a year voltinisms one a year. The mature form is seen for one year, but a population rises clearly for from April to June and from September to October. It seems to spread at this time [¹¹].

Breeding habit

I make the egg case which the female is round, and is white and add it to upper jaw in a net and protect it as if holding it. Even if bait is caught in a net at this time, I ignore it [¹²]. The dam bites to an egg case, and I pierce it, and the larva escapes from the hole before a larva appears from an egg case [¹³].

The larva which appeared from an egg case eats nothing without working for first two days. I eat bait given from a dam on the fourth day from the third day. Thereafter, the larva catches game with mother. When it is this time, even the larva has bait when mother disappears [¹⁴].

The procedures to catch game seem to be as follows. When game is caught in a net, the dam approaches it quickly and arrests you and carries it to the hideout. I tie winding, it to a net with a thread afterwards. It is the same as usual times, and, at the stage when a larva does not appear even if there is the egg case, the dam begins to eat game immediately. When there is a larva, the dam moves game around a detached room, a net. At this chance it is not seen to contact a larva. A larva eats bait afterwards. It is observed eating bait with a larva in the comb-footed spider a dam, but such an action is not seen with this seed. In addition, the possibility that I distinguish it whether mother is one's child is suggested by an experiment to replace mother with this kind [¹⁵].

including the resemblance class

 

Co-reed black fly comb-footed spider, male mature form

There are many plural comb-footed spider seen with a similar appearance with about the same size on the genus, but the distinction with them is easy because a spot becomes clear.

But the same sort has similar another kind, and the next kind is known other than this seed in Japan.

• A. iwawakiensis Yoshida Iwawaki reed black fly comb-footed spider
• A. exiguus Yoshida co-reed black fly comb-footed spider

These resemble this seed closely and are, and, in the distribution area, as for the former kind, Korea, 後種 repeat to some extent again with the South-West Islands from Amami Islands and to the south from Honshu. All are slightly smaller than this seed, but it is necessary to confirm the details including the sex organs for accurate identification [¹⁶]. In addition, these may be confused in the report before the 1980s because it is the thing which lists these days with both kinds.

Source

1. ^ Ono compilation (2009)p.368
2. ^ Asama other (2001)p.47
3. Lake ^ Yagi (1986)p.41
4. Lake ^ Yagi (1960)p.38
5. ^ Ono compilation (2009)p.368
6. ^ Araumi (2006)p.96
7. ^ Asama other (2001)p.47
8. ^ Araumi (2006)p.96
9. ^ Ito & Shinkai(1993)p.74
10. ^ Hiramatsu (1999)
11. ^ Tanikawa (2005)
12. ^ Ito & Shinkai(1993)p.78
13. ^ Asama other (2001)p.47
14. ^ Ito & Shinkai(1993)p.76
15. ^ Ito & Shinkai(1993)
16. ^ Ono compilation (2009)p.368

References

• Hirotsugu Ono compilation, "Arachnida from Japan," it is (2009), Tokai University publication society
• Takeo Yaginuma, "primary color Japan Arachnida illustrated book," it is (1986), childcare company
• Takeo Yaginuma, "a primary color Japan Arachnida size illustrated book," it is (1960), childcare company
• Eiichi Araumi, "Japanese spider" ,(2006), Bunichi general publication
• Shigeru Asama et al., "the spider tick aphids of outdoor observation handbook revision school grounds," it is (2001), farm village National Education Association of the whole country
• Akio Tanikawa, 2005. KISHIDAIA. where "the reed black fly comb-footed spider has it of two a year in becoming it" 87:p33-35.
• Chizuko Ito & Akira Shinkai 1993. Mother-young Interactions During the Brood-care Period in Anelosimus crassipes (Araneae: Yheridiidae). Acta Arachnol., 42(1): p.73-81.
• 平松毅久, 1999, "オオシロカネグモ which I wrap the flower which fell to a net and ate," it is Kishidaia 77:p.26-28.

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