GENUS STROXGYLOG ASTER. 185 



campa, e.g. B. nana, can hardly be separated from 

 Fenusa. 



From the Nematina they are clearly cut off by the 

 larvaD having twenty-two legs (although it must be 

 said that Hoplocampa is a partial exception in this 

 respect), and by the second (or first when there are 

 only three) cubital cellule receiving only one of the 

 recurrent nervures. Secondary points of distinction 

 are, that the third joint of the antennae is distinctly 

 longer than the fourth, by the basal nervure being 

 united to the cubital, and by the spurs being shorter. 

 Hoplocampa is the connecting link between the two, 

 it having the third and fourth joints subequal, the 

 basal nervure received at a distance from the cubital, 

 and by the transverse cubital and recurrent nervures 

 in the posterior wings being joined, three characteristic 

 features with the Nematina. 



The Selandriades have a much wider geographical 

 range than either the Tenthredinides or the Nematina, 

 being found not only in the Nearctic and Palsearctic 

 regions, where they are abundant, but also in the Neo- 

 tropical, Ethiopian and Australian regions. 



Genus STRONGYLOGASTER. 



Strongylogaster, Dbm., Consp., 4. 



Wings long and narrow, with two radial and four cubital cellules ; 

 lanceolate cellule open, rarely with an oblique cross nervure. Inferior 

 wings with the transverse cubital and recurrent nervures present, and 

 placed at a little distance from each other. Basal nervure curved; 

 transverse median received not far from the middle of the median 

 cellule ; accessory nervure in hind wing interstitial or nearly so. 



Antenna short, of nearly equal thickness throughout ; the third joint 

 not much longer than fourth. Head large, thick set ; eyes not reaching 

 to base of mandibles ; clypeus incised. Body longish ; abdomen sub- 

 cylindrical, longer than head and thorax, sometimes punctured (filicis, 

 cingulatus), carinated (filicis). Legs short; claws bifid, or with a 

 minute apical tooth (filicis) ; tarsi shorter than tibiae. The mandibles 

 have a subapical tooth ; the indentation between it and the apical one 

 is rather deep. The head is large, usually with a thick swollen vertex 

 and cheeks ; the temples are margined on the lower side. 



In the form of the head and in sculpture this genus 





