Anax striatus

Kirby, W. F., 1889, Descriptions of new Genera and Species of Odonata in the Collection of the British Museum, chiefly from Africa., Proceedings of the Zoological Society of London 1889, pp. 297-303 : 299-300

Anax striatus .

Exp. al. 105 millim.; lat. al. ant. 2 millim.; lat. al. post. 7 millim.; long. pter. 3 millim.; long. corp. 75 millim.

Testaceous yellow; head with the front raised, rugosely-punctate, and marked with a blackish spot on the summit; the region of the ocelli, the lower edge of the nasus, and all the mouth-parts reddish brown, more or less varied with yellow at the sutures. On the thorax the septa are very strongly ridged, and are marked with black in front and within; there are also four black spots on the depressions of the pleura; legs reddish. Abdomen with the first and second segments much swollen, the hinder half of the second segment with black markings diverging on each side of the carina; the following segments with two blackish spots at the base, two smaller ones beyond the middle, and an irregular blackish stripe crossing the carina before the extremity; the incisions are also marked with black in the middle; on the 7th and 8th segments these marks become more suffused and irregular, and are not continued further.

Wings very broad, clear hyaline, the space between the costal and subcostal nervures filled up with smoky yellow, very dark at the base, and ceasing, like the costal nervure, at the nodus; the lower basal cell is also stained with yellow as far as the lower triangle; pterostigma brown, very short. Fore wings with 20-21 antenodal and 5 postnodal nervures; triangle about three times as long as broad, consisting of 4 cells, followed by 5 or 6 cells, and then byY 2 increasing; 2 supratriangular nervures; 3 cross-nervures in the subtriangular cell; lower triangle free (which corresponds to the subtriangular space in Libelluliiioe). Hind wings with 5 antenodal and postnodal nervures; triangle about twice as long as broad, consisting of 4 cells, followed bv 4 or 5 cells, and then by 3 increasing; 2 supratriangular nervures; 4 cross-nervures in the lower basal cell; lower triangle transverse.

Chili (Edmonds).

The specimen appears to be a male, but the abdominal appendages are too much damaged for description. It is the first Anax described from Chili, and is remarkable for the verY short pterostigma, which separates it from all the other species of the genus with which 1 am acquainted.