178 DOLERUS POSSILENSIS. 



Not unlike varispinus, but the head is broader and 

 more closely punctured ; the puncturation on the 

 mesonotum is pretty much the same in both species, 

 but the head and thorax is almost glabrous in oblongus, 

 the sutures on vertex are invisible, antennae longer 

 and thicker, and the accessory nervure in hind wings 

 interstitial, and, as a whole, it is a broader insect. It 

 comes near to D. meg apt ems, but that species is larger 

 and longer compared to the breadth, has the head and 

 thorax densely covered with long grey hair, so that 

 these parts are without gloss, while in oblongus they 

 are shining ; the mesonotum is more densely punctured, 

 and the spurs and stigma quite black. From inter- 

 medius it may be separated by its broader body and 

 head, by the deeper puncturation on middle lobe, darker 

 cenchri, much longer spurs and metatarsus, which is 

 not so much thickened at the apex, and is as long as 

 the two following joints. 



Seemingly a northern and not very common species. 

 Braemar, Eannoch, Clydesdale. 



Continental distribution : Sweden. 



23. DOLEBUS POSSILENSIS, sp. n. 

 PI. XIX, fig. 8, Saw. 



Black, head with a bluish tinge ; head covered with punctures, not 

 very closely pressed together ; scutellum and middle lobe of mesonotum 

 punctured, but not so closely nor so thickly as the head, base of 

 scutellum and lateral lobes almost impunctate; head and pleurae 

 pilose, more especially the latter. Mesonotum sparsely pilose, 

 almost subglabrous. Antennae shorter than the abdomen, slightly 

 attenuated at the apex. Cenchri greyish. Wings hyaline ; transverse 

 radial, second transverse cubital and recurrent nervures pale; stigma 

 pale on lower border ; transverse cubital and recurrent nervures in hind 

 wings almost interstitial; Abdomen keeled on back, smooth, shining, 

 impunctate, almost glabrous above, pilose at the sides, especially at the 

 apex. Spurs black ; anterior pale at extreme base ; posterior meta- 

 tarsus almost shorter than two succeeding joints, thick, especially at 

 apex ; spurs short and thick. Sutures on vertex distinct. ? . 



Length nearly 4 lines. 



Yery similar in sculpture and clothing to oblongus, 

 but distinguished by the distinct sutures on vertex > 



