EEV. A. E. EATO:\' ON EECENT EPHEMEEIDJi OE MATl'LIES. 203 



S Very similar to the d . Fore leg iu opaque view pitch- or dark bistre-brown, Avith 

 the end of the tibia darker. Hinder legs in opaque view light bistre-brown, with tarsi 

 of a duller colour ; in one example the colour is more of a raw-umber ; in transmitted 

 light the bistre changes to light raw-umber and to brownish amber, and the raw-umber 

 of the exceptional specimen to yellow-amber. The cross veinlets of the pterostigmatic 

 portion of the marginal area of the fore wing branch about midway between the costa 

 and the subcosta. Length of body 10-11 [shrunken] ; wing, d 13, 2 14-16 ; setge, 6 im. 

 15-20 & 2, subim. 14 & 1, ? im. 15 & 1, subim. 14 & 1 mm. 



Hub. New Zealand; common at Christchurch (Fereday) and Otago [Brit. Mus. & 

 M'^Lach. Mus.]. 



CoLOBURTJS HALEUTicus, Etu. Plate XVIII. 32 c (penis), XIX. 32 (fore wing). 



Coloburus haleuticus, ! Etn., Traus. Ent. Soc. London (1871), 133, pi. vi. 7, 7 a [detail]. 



Imago {dried), 6 . — Notum raw-sienna [furfurosus]. Abdomen rufo-fuscous above, 

 rather darker at the joinings ; pleurae testaceous ; venter rufo-lutescent. Setse fuscous ; 

 forceps testaceous, tinged distally with piceous. Fore legs rufo-piceous ; hinder legs 

 light brownish ochre. Wings vitreous, with pitch-black neuration, excepting that the 

 membrane and nervures close to the wing-roots are suffuscous, and the marginal and 

 submarginal areas of the fore wing in the pterostigmatic region are greenish grey. 

 Length of body, 6 im. 11 ; wing 15 ; setse 20 and 5 mm. 



Sab. Australia ; probably near Melbourne [M'^Coy]. Well distinguished by the shape 

 of the penis. 



CHIROTONETES, Etn. 1881. 



Illustrations. Adult (details), Pis. XVIII. 33 (Z-e & XIX. 33 «, h,'^c. Nymph, 

 PI. XLIX. 



Adult. — Foi'e leg of 6 from about § to ^^ as long as the body ; tarsus scarcely longer 

 than the tibia, which is nearly If as long as the femur; diminishing sequence of tarsal 

 joints 1, 2, 3, 4, 5, the first nearly 1^ as long as the second joint. Fore leg of ? nearly 

 as long as the body [when dried about ^o as long] ; tarsus about |- as long as the tibia, 

 and this about 1| as long as the femur ; sequence of tarsal joints 5, 1, 2, 3, 4, the first 

 1^ as long as the second. Hind tarsus of d nearly f as long as the tibia, and this about 

 I as long as the femur ; sequence of joints d 5, 2, 1 subequal to 3, 4; ? 5, 1 subequal 

 to 2, 3, 4. Ungues mutually alike ; those of the d fore tarsus terminate each in a 

 narrow obtuse squamiform point, creased lengthwise in the middle and concave beneath ; 

 those of the hinder tarsi and of the ? fore tarsus are narrow and uncinate. Hind 

 wings well developed, obtusely oblong-ovate, with the summit of the dilatation of the 

 marginal area obtuse ; axillar region largely developed and Avith abundant neuration, of 

 which a large portion is composed of nvimerous long branchlets of the hindermost 

 axillar nervure. In PI. XIX. 33 b the functions of the first axillar (9) have been 

 usurped by the intercalar nervure intervening between it and the second axillar. In 

 the 2 abdomen the relative lengths of segments 2-10 may be formulated thus : — 8, 11, 

 12, 12, 12, 13, 11, 11, 5 ; the first segment is thoracoid ; the pleurce of segments 7 and 8 

 are squarely truncate ; those of segment 9 are very narrowly dilated laterally, and are 

 each produced posteriorly into a short acute tooth ; the ventral lobe of the 9th segment 



27* 



