THE MYCETOPHILIDA. 127 
ways in the different species ; the forceps join the poste- 
rior surface. 
(ii.) The amine supere are two in number and lanceolate. 
They cover the summit of the lamina basalis. They are 
movable, and easily elevated upwards or downwards. 
There are two plates at the base of the laminz. 
(iii.) The forceps inferior simple, often notched and curved in 
various ways, and very hairy. This part forms a great 
specific character. 
(iv.) The forceps superior formed of three distinct parts: (1) The 
“trone” (4), which varies a great dealin form. (2) The 
“lamella” (c), which is generally a triangular plate, the 
superior border being furnished with spines, which are long 
and strong. (3) The “ membranous lamella” (a). This is 
wrinkled in various ways and furnished with recumbent, 
horizontal rows of rods (4agueftes), smooth and compact. 
There is also another lamella present, joined to this, oblong 
in form and variable in shape, directed towards the 
interior ; a few hairs present. 
(v.) The appendix interna, or adminiculum. This is found to be 
present in the middle of the basal lamella and beneath the 
two laminz supers. They are small structures, and not 
easily found in Mycetids. 
The Ovipositor (Legerohre). This is also composed of five parts : 
The pars basalis supera ; the pars basalis infera ; the lamelle@ ante- 
riores ; the lamelle posteriores, and the vaginula. (Vide Fig. 25.) 
(i.) Pars basalts supera (A). This corresponds to the eighth 
dorsal abdominal segment. It.is a simple plate, which is 
indented on the posterior border in various ways. 
| (ii.) The pars basalis infera (k). This corresponds to the eighth 
‘ventral abdominal segment. It is also a simple piece, with 
various indentations in the different species, 
(iii.) The Zamelle anteriores (8) are movable plates of various 
shapes, the superior border being edged with a few long 
hairs. 
(iv.) The amelie posteriores (c) are joined to the lam. ant., and are 
surmounted on their summit or extremity by short, strong 
| ' hairs. 
(v.) The vaginu/a(p). This underlies the ant. and post. lamelle. 
Of course these parts vary, not only in each family, but in each genus 
and species ; their study is at present in a very unsatisfactory state 
