N A T U R K U N D L I C H E S á I N F O R M A T I O N S S Y S T E M

Daiopterix olgae Kozlov, 1989

(zoological nomenclature: valid name, available)

General information:

Daiopterix olgae Kozlov, 1989: 35-36
Type locality: Transbaykal, Chitinsk Oblast, Shelopugino district, left bank of Daya River, 2 km above the mouth of the Shiviya River valley; Glushkovskaya series, Lower Cretaceous, Aptian
Type: Holotype : Transbaykal, Glushkovskaya series; Chitinsk Oblast, Shelopugino district, left bank of Daya River, 2 km above the mouth of the Shiviya River valley; direct and reverse impressions; in coll. Paleontological Institute USSR Academy of Sciences (PIN), no. 3063/741.

Synonyms, misspellings, wrong determinations, etc.:
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Habit:

     
Drawing of holotype      
Picture from: © Kozlov 1989, modified
Detailed view
     

Description of adults: Original description by Kozlov (1989), based on the holotype : Forewing lenght: 5 mm; "Eyes oval, ratio of width of eye to height is 0.6. Antennae filiform, lenght of segments in basal part equal to their diameter, distally, the length exceeds diameter 1.5-1.7 times. In forewings, R1 is forked, somewhat distally of R2 and R3 fork; M1 fuses with M2 somewhat proximally of the R2+3 and R4+5 fork, connected with R4+5 stalk by a crossvein close to this fork. The medial cell is closed. The CuP stalk fuses with the posterior margin at its own half length. On the hind wings the R1 fork is located significantly distally of the R2+3 and R4+5 forks. Tibiae of the hindlegs have numerous bristles; both pair of spurs are long, approximately 1.5-2 times longer than the diamter of the tibia. Sternal structures not found."

Distribution:

D. olgae is known only from the single specimen from the type locality in Transbaykal.

Biology:

Nothing is known about the biology of D. olgae.

Stages in development:

The early stages are unknown.

Anatomy:

     
schematic drawing of the female abdomen, based on Kozlov (1989)      
Picture from: Kurz Michael
Detailed view
     

genitala. Unknown

genitalia. A precise establishment of the length of the apophyses is not possible. Apparently, the tips of the anterior apophyses reach the distal margin of segment VII, whereas the posterior reach abdominal segment III (Kozlov 1989).

Diagnosis:

   
D. olgae: Drawing of holotype D. rasnitsyni: Photographs and drawings after Skalski (1984)    
Picture from: © Kozlov 1989, modified
Detailed view
Picture from: LepTree Team (creative commons)
Detailed view
   

Following Kozlov (1989), the species differs from Daiopterix rasnitsyni Skalski, 1984 in M1 fusing with M2 considerable more proximally and in the presence of a closed medial cell in the forewing. In the hindwing, the R1 fork is located more distally.

Phylogeny: Although the scaly covering of the wings is almost completely missing, the well pronounced fringe of piliform scales assigns the species to Lepidoptera (Kozlov, 1989). The long apophyses posteriores suggest an assignment to Eolepidopterigidae.

Worth knowing:

The age of the fossil has been estimated to be between 125 - 112 Ma (Aptian period of Cretaceous).

Sources:

Kozlov, M. V. 1989. New Upper Jurasic and Lower Cretaceous Lepidoptera (Papilionida). Palaeontological Journal 4: 34-39. [Translated from: Novyye cheshuyekrylyye (Papilionida) iz verkney yury i nizhnego mela. Palaeont. zhur., No. 4, pp. 37-42, 1989.]

Publication data:

history:
Kurz Michael: 2010.04.08
Kurz Michael: 2010.05.12
Kurz Michael: 2010.10.21
Kurz Marion: 2010.12.31
Document reviewed by:
not reviewed: 2011.01.01
Document released by:
Kurz Michael: 2011.01.01

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