58 I August, 



decidedly longer than the fourth ; while in nigrita they are equal, the fifth 

 being if anything longer than the fourth, while the mesonotum in 

 micans is densely pubescent, and scarcely so in nigrita ; also in the 

 latter the knees only of the anterior legs are testaceous ; in micans 

 the whole of the anterior tibiae in front is testaceous. 



B. sericans again is much larger, has the wings deeply smoky, the 

 antennae very short compared to the size of the body ; the third joint 

 is double the length of the fourth, the second sub-marginal nervure 

 does not slope towards the base of the Aviug, but is nearly straight, 

 while the second sub-marginal cellule has a distinct horny point: the 

 anterior knees only are testaceous. 



18. Nigrita, Fab. = nigerrima, Kl. 



19. Sericans, Hartig. 



20. Aterrima, Klug. Tenthredo aterrima. King, Berlin. Mag., viii, 

 81, 70. Hartig, Blatt- u. Holz-w., 276, 36 ; Eversmann, I. c, 31, 11. 

 T. fuliginosa, Fallen, Acta, 1808, 109, 45. Phi/matocera aferrima, 

 Van Vollenhoven, Tijds. voor Ent., v, pp. 55 — 59 ; Zool., 9471 

 — 74 ; Taschenberg, Entomologie fiir Grarten, 161 ; Kaltenbach, 

 Pflanzenf., 723. Selandria Rohinsoni, Curtis, Trans. Linnean Soc, 

 xxi, pp. 39 — 41, 1855. Described also by Bouche in his Naturgeschichte 

 der Insecten as Tentliredo fuliginosa . 



21. Fuscula, Klug (see Ent. Mo. Mag., xi, 253). 



Several other species have been recorded as British, but apparently 

 in error, although no doubt a number of them will yet be found if 

 sought. Thomson desci'ibcs twenty-eight Scandinavian species. 



Glasgow : Gth June, 1877. 



DESCRIPTION OF A NEW SPECIES OF NEMATUS OF THE LUTE CIS 

 GEOUP FEOM SUTHERLANDSHIEE. 



BY P. CAMERON. 



Nematus aktexxatus, sjp. n. 



JV. rufo-luteus, capitis maxima parte, antennis, mesonoti maculis 3 

 magnis, scutello, metanoto, maculaque mag^ia pectoris, nigris ; alis fere 

 hyalinis, stigmate rufo-testaceo, hasi nigro. Long, fere, 3i lin. 



Belongs to the luteus group (see E. M. M., xiii, 177). From all 

 the species (except abdominalis, which is abundantly distinct otherwise) 

 it differs in the colour of the head and antennae, which, in the species 

 hitherto described, are for the greater part, if not entirely, reddish- 

 yellow. It agrees with bilineatus in haA'ing black marks on the meso- 



