Pithauria stramineipennis
Encyclopedia
The Light Straw Ace Pithauria stramineipennis is a species of Skipper butterfly found in tropical Asia
Asia
Asia is the world's largest and most populous continent, located primarily in the eastern and northern hemispheres. It covers 8.7% of the Earth's total surface area and with approximately 3.879 billion people, it hosts 60% of the world's current human population...

. It measures about 2 inches in wingspan.

Description

In describing this species as above Messrs. James Wood-Mason
James Wood-Mason
James Wood-Mason was a Scottish zoologist who worked in the Indian Museum at Calcutta from 1877 succeeding Prof. John Anderson. He made many collections of marine animals and lepidoptera.-Publications:...

 and Lionel de Niceville
Lionel de Nicéville
Charles Lionel Augustus de Nicéville was a curator at the Indian Museum in Calcutta . He studied the butterflies of South Asia and wrote a three volume monograph on the butterflies of India, Pakistan, Burma and Sri Lanka.Born in a noble Huguenot family, his father was a physician. He was educated...

 append the following remarks :
"In our figure the downy clothing of the upperside of the wings at the base is not represented of a sufficiently light and bright shade ; it is in reality of a clear bright whitey-brown or straw-colour, which, being conspicuously contrasted with the dark margins, renders P. stramineipennis most readily distinguishable from P. murdava, in which the downy clothing is, as has already been stated, yellowish-olivaceous. The genital armature, which has been carefully examined in several specimens of each species, though identical in general plan, yet differs greatly in detail in the two. Several hundreds of specimens of each species have passed through our hands."

Male

Upperside, both wings marked precisely as in Pithauria murdava
Pithauria murdava
Pithauria murdava is a species of Skipper butterfly found in tropical Asia. It measures about 2 inches in wingspan.-Description:Upperside olive brown : forewing with the base grey, with six small yellow spots, two within the extremity of the cell, two near the costa, one-third from the apex,...

, Moore, but all the setae on the base of the wings clear whitey-brown with a touch of yellow on all those in front of the submedian nervure of the forewing, those on the interno-median area of this wing being concolorous with the whitey-brown down of the hindwing, the costal area of which is above more or less extensively pale brown. In P. murdava, the setae in the hindwing are yellowish-olivaceous, all those of the forewing distinctly yellower ; and the costal area of the hindwing is dark. All the spots and streaks of both sides are no less variable in P. stramineipennis than they are in P. murdava, so we have not attempted to describe them.

Female

Differs from male in being larger, in the wings being paler, with the scanty setulose clothing at their bases greyish-fuscous paler than the ground in the hindwing, and in the spots of the forewing being larger, paler, and more angular ; agrees therewith in the costal area of the hindwing being pale brown above.
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