SELANDRIA SIXII. 195 



Tliis is a very common species in marshy places 

 in June and July. It appears to be common every- 

 where. 



2. SELANDRIA Sixn. 



PL XXI, fig. 2, Saw.; PL XII, fig. 1, ? ; PL II, fig. 



9, Larva. 



Selandria siw, Voll., Bouwstoffen, iii, 278 (1858) ; Tidj. Ent., 

 xxii, 18, pi. 4, (lar., &c.) ; Andre, 

 Species, i, 295; Cat., 36,* 2. 

 grandis, Zad., Beschr., 36 ; Cam., E. M. M., xiii, 198 ; 



Fauna, 23, 2. 



interstitialis, Thorns., Hym. Sc., i, 237, 2. 

 serva, Stein, Ent. Nacht., vi, p. 251 (lar.). 



Similar to 8. serva, but much larger, the joints of the antenna? more 

 distinctly separated, distinctly projecting at the apices ; the third 

 nearly three times longer than the fourth, the second recurrent nervure 

 interstitial and the saw differs slightly. 



Length 3^ 4 lines. 



The labrum is either black (as is generally the case) 

 or pale yellow, the thorax is entirely black (with the 

 exception of the limb of the pronotum, which is 

 yellow), or the mesonotum, metanotuin, and breast only 

 are black ; the blotch on each side is surrounded with 

 black, or it may be without any black; and occa- 

 sionally specimens are got with a row of black dots on 

 the back of the abdomen in the centre. 



The # is similar to that of Serva and is subject 

 to the same colour variation ; it may, however, be 

 always known from the <? of Serva by the apex of 

 the abdomen being broadly rounded, while in Serva it 

 is considerably narrowed at the point. The third 

 joint appears to be shorter in proportion to the fourth 

 than in the ? . 



The larva feeds on Poa aquatica during the summer, 

 and spins up at the middle of July in a brownish 

 cocoon in the earth. Its head is clear brown, darker 

 on the vertex and between the eyes. The body is 

 clear green, with a darker line down the back, the 

 belly whitish, and the spiracles brown. From the 



