SOME DRAGONFLIES FROM NEW BRITAIN. 



247 



appendages of the male to Monsieur G. Severin, of Brussels, who 

 was kind enoufi;h to compare it with the male type of inornata, 

 preserved in the Musee Royal d'Histoire de Belgique. He 

 thereupon informed me that the structures shown in the figure 

 correspond exactly with those of the type, even including the 

 marginal denticles. The specific identification may now be 

 taken as settled, and I am not even sure that a varietal name 

 is called for, judging from two or three males, in poor condition, 

 obtained in kew Guinea by A. E. Wallace, and standing over 

 the name inornata in the British Museum (Natural History). 

 It is true that Willey's specimens are of large size, but the 

 species is certainly very variable in that respect. 



I am not aware that any figures of the male anal appendages 

 of I. inornata have hitherto been published. Moreover, as the 

 New Britain insect differs to some extent from De Selys' 



Idiocnemis inornata, Selys, ^ , New Britain. Left profile view of the terminal 

 segment and anal appendages. 



description of the species, it seems advisable to give a short 

 account of a male and female from Dr. Willey's collection which 

 have been acquired, by exchange, by the British Museum. 



(^ . Length of abdomen, including anal appendages, 37-5 mm. ; 

 length of hind wing 25 mm. 



Labium yellowish-brown. Labrum, clypeus, frons, and upper 

 surface of head reddish-brown. Gense yellowish, with a large 

 lunulate black spot between the postclypeus and the eye on each 

 side. A low ridge crossing the frons between the antennae. Basal 

 three joints of antennae reddish-brown : the remaining joints black. 

 The paired ocelli ringed round with black. Postocular spots large, 

 black, and rounded. 



Pronotum reddish-brown. A large oval black spot between the 

 coxae of the forelegs. Hind margin of prothorax elevated and some- 

 what rounded. Meso-metathorax with dorsum reddish-brown, 

 shading into yellowish-brown at the sides ; mid-dorsal carina black. 



Legs reddish-brown above, paler below ; tips of tarsi black. 



Wings with black venation. Pterostigma pale brown, yellowish 

 round the edges. Postnodals in fore wings 19, in hind wungs 18. 



