Medium-branded Royal

  Dacalana vidura

 

Selangor

22 July 2023

 

 

 

 

How to ID Dacalana species guide from Mr Teo

Both first (D. sinhara) and second (D. cremera) Dacalana species have their submarginal orange area on underside hindwing (UnHW) more or less obliterates the white discal striae in space 2 (I marked blue O1 & O2 in the following pictures). However, D. sinhara and D. cremera can be differentiated by the later species (i.e. D. cremera) has a orange bar (purple arrow bor) in space 1a above the black tornal spot but D. sinhara not. Please see pictures below >>

The submarginal orange area of the remaining two Dacalana species (i.e. D. vidura & D. burmana) not overlapping the white discal striae in space 2 on UnHW (Blue On arrows). The differences between D. vindura and D. burmana are the separated postdiscal striae are lunulate (curved) in D. burmana (white cdl) on UnFW and UnHW but these striae are straight in D. vidura (white dt). In addition, the orange area crowned the black spot in space 2 of D. burmana is much narrower than D. vidura. All the above descriptions are for underside patterns only because your photo is an underside photo. Please see pictures of D. vidura and D. burmana with markings below.