DINEUEA VERNA. ] 7 



Nematus opacus, Thorns., Hym. Sc., i, 81, 2. 



Selandria labialis, Brulle, Exp. Sc. de Moree, iii (1), pt. 2, 393, 



872. 



Black, shining, and thickly covered with griseous pubescence; 

 clypeus at apex, palpi, and labrum white ; pronotum, a large triangular 

 spot on mesonotum, scutellum, a splash on side of the breast, and 

 the abdomen at the apex beneath, ferruginous. Legs white, with a 

 ferruginous tinge, the apex of coxae and a line on the femora black. 

 Wings hyaline, nervures black, costa and stigma pale testaceous. $ . 



Length 2f 3 lines. 



Ab. a. Thorax (pronotum excepted) and abdomen 

 (except anus) black ; femora and posterior tarsi lined 

 with black. 



b. As in a, but scutellum ferruginous. 



c. Meso- and metanotum ferruginous ; abdomen 

 entirely black. 



d. Wings half developed, of equal breadth, the por- 

 tion beyond the stigma being crumpled up ; the stigma 

 wrinkled and thick. 



A species distinguished by its short, thick, Selandria- 

 like body. The antennse are short, thick, and a little 

 longer than the head and thorax ; the frontal sutures 

 are small ; the clypeus incised, but not very deeply ; 

 cerci short, and the saw does not project much. 



The coloration of the thorax and abdomen varies 

 considerably, scarcely two specimens having the same 

 amount of the red colour, the thorax especially varying 

 from black to ferruginous. The first radial cellule is 

 small ; the nervure arises a little past the middle of 

 the stigma ; the third cubital cellule is about one 

 fourth smaller than the second ; the third transverse 

 cubital nervure has scarcely any slope. The posi- 

 tion of the nervures is very inconstant ; often the 

 transverse radial nervure is absent ; it is not always 

 joined to the second transverse cubital, and the posi- 

 tion of the transverse cubital nervures is also subject 

 to variation. 



The larva, according to Giraud, is found about the 

 middle of May, and pupates at the end of that month. 

 It is cylindrical, and a little thick, the colour through- 

 out being a delicate green, with the exception of the 



VOL. II. 2 



