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標題: [步甲科] 寒冬下的步甲 carabidae in Chill
littlelittle
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發表於 2007-1-7 23:16  資料 文集 短消息 
寒冬下的步甲 carabidae in Chill

天氣凍!無人post甲蟲。
Found today. Body length around 6mm. Is it Dolichoctis striatus 小長唇步甲or Dolichoctis tetraspilotus 四斑長唇步甲?

[ 本帖最後由 littlelittle 於 2007-1-8 09:09 編輯 ]


圖片: Dolichoctis?.jpg (2007-1-7 23:16, 73.72 K)



圖片: Dolichoctis.jpg (2007-1-7 23:17, 73.61 K)

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nadia
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發表於 2007-1-8 07:51  資料 文集 短消息 
I think it should be Dolichoctis striatus.   The spot on D. tetraspilotus is more oval,elongated and slightly more slender.  The body length is also slightly longer.

Your sighting is a new record for Hong Kong as well as Guangdong Province thought it has always been expected here.   Do you mind to review at least the district where the beetle was found for the sake of my knowledge?
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littlelittle
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發表於 2007-1-8 09:05  資料 文集 短消息 
回覆 #2 nadia 的帖子

Thank you for your information.
It was found in the woodland of Deep Water Bay river valley, HK Island.
I am always happy to disclose sighting locations. Except for those creatures with high commercial value, high conservation value, or those found in highly velnerable private lands. More people know the locations, more people protect them.
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nadia
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發表於 2007-1-8 20:14  資料 文集 短消息 
Thanks for the information.
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發表於 2007-1-8 20:48  資料 主頁 文集 短消息 
請問這兩隻是否一樣

#1.  2006/04/29 大埔滘



#2.  2006/06/04 大埔滘
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littlelittle
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發表於 2007-1-8 22:39  資料 文集 短消息 
看來都是 Dolichoctis striatus
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nadia
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I second.
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發表於 2007-1-9 23:50  資料 主頁 文集 短消息 
Thanks~littlelittle & nadia
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發表於 2007-1-13 23:26  資料 短消息 
Unidentified Ground Beetles

Last year I spent a lot of time looking for ground beetles and found over 35 species (not including Tiger Beetles), but I have only been able to identify 8 species.  Here are a few of the well marked species.  Any help would be much appreciated.

(1) Common in large groups of up to 50 individuals in a limited area of dry marsh, seen throughout the dry season.  Area always flooded in wet season.  Size 9.5mm - 12.5mm.  All upper parts dark green except lateral and posterior margins of the elytra which are usually floresent green.  First three segments of the antennae yellow rest dark grey.


圖片: IMG_6665.1.jpg (2007-1-13 23:26, 173.59 K)

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發表於 2007-1-13 23:32  資料 短消息 
Unidentifed species 2

(2) I have only seen this species once.  I found it dead at around 300 metres altitude on a main road on Lantau island.


圖片: IMG_4468.1.jpg (2007-1-13 23:32, 215.25 K)

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發表於 2007-1-13 23:37  資料 短消息 
unidentified species 3

(3) Harpalinae - seen around the village 3 times in May and once in November.  Size 8mm long


圖片: IMG_8023.1.jpg (2007-1-13 23:37, 111.75 K)

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發表於 2007-1-13 23:41  資料 短消息 
unidentified species # 4

Quite common around toilets etc in May and June.  5 - 6 mm long.


圖片: IMG_7072.1.jpg (2007-1-13 23:41, 55.66 K)

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發表於 2007-1-13 23:46  資料 短消息 
Unidentified species #5

Seen once in May.  Length 5.5mm


圖片: IMG_7119.1.jpg (2007-1-13 23:46, 47.73 K)

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發表於 2007-1-13 23:50  資料 短消息 
Unidentified species # 6

Found injured on a village footpath.  May.


圖片: IMG_7175.1.jpg (2007-1-13 23:50, 141.83 K)

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發表於 2007-1-14 16:18  資料 文集 短消息 
Unidentified 2 :
Chlaenius deliciolus, 10-11.5mm. yours matches very well with the description and illustration on "The Coleoptera of Japan in Color Vol.II". But I have no information about its distribution outside Japan

Unidentified 5 :
Stenolophus quinquepustulatus, 5.3-6.5mm. Yours looks different from the typical one which has the apical spot and the 2 spots near it separated. But The Coleoptera of Japan in Color Vol.II said these spots varies greatly and they sometimes merge.

Unidentified 6:
Chalenius junceus, 13-14mm. Characterized by the pronotum with large and dense sculptures, and of course, the shape and location of the yellow spots on elytra.

Hope these may help.
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發表於 2007-1-14 16:55  資料 文集 短消息 
unidentified 3 :
Matches well with the description of Callida (Callidiola) splendidula (Fabricius), 9.0mm. Please check if there are hairs as illustrated below. Also check :
1. 4-11 antennae densely covered with hairs?
2. labrum nearly rectangular and width to length ration 4:3 ?


圖片: beetle_hairs.jpg (2007-1-14 16:55, 54.13 K)

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發表於 2007-1-14 22:06  資料 短消息 
Hi Littlelittle, thank you so much,  great help.

(2) Chlaenius deliciolus, has been recorded in China or at least from Taiwan

(3) Looks like Callida (Callidiola) splendidula (Fabricius 1801), hairs (setae) all in identical -  labium subrectangular and to a ratio of about 4:3 -  Antennae segments 4 - 11 are more heavily haired than 1 - 3

(5) Stenolophus quinquepustulatus (Wiedermann 1827) is one of the commonest ground beetles I come across.  After eading your comment I checked it afgainst a specimen and all the setae are identical.  

I am so pleased to get those sorted out.

Kind regards Paul
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發表於 2007-1-14 22:13  資料 短消息 
Unidentified species # 7

I have seen this species only once on 11 November.  The elytra is very hairy and sharply trucated.  I originally thought it was Drypta lineola with which it is a little similar.


圖片: IMG_8426.1.jpg (2007-1-14 22:13, 94.87 K)

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QUOTE:
原帖由 PemE 於 2007-1-14 22:06 發表
Hi Littlelittle, thank you so much,  great help.

(2) Chlaenius deliciolus, has been recorded in China or at least from Taiwan

(3) Looks like Callida (Callidiola) splendidula (Fabricius 1801), hairs  ...

You're always welcome!

It is great pleasure to know your insect records.
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發表於 2007-1-15 11:08  資料 文集 短消息 


QUOTE:
原帖由 PemE 於 2007-1-14 22:13 發表
I originally thought it was Drypta lineola with which it is a little similar.

I agree. Head and pronotum may be too broad to be Drypta. But I have no information further to that.
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