THE MYCETOPHILIDA. 125 
brown beneath. Legs yellow; tarsi of the anterior legs 2-3 times 
longer than the tibize of the corresponding legs ; the tibize are in the 
same proportion to the corresponding metatarsi. The ovipositor: 
the pars basalia supera with a deep angular hollow on the posterior 
side, and with a slight arched depression on the sides ; the w hole ex 
ternal surface of the lamella almost bare, and not clothed with any 
little hairs. The pars éasalia infera: the posterior border notched 
in form of a parenthesis, and covered by a single row of small 
hairs. The anterior lamella cylindrical, with the surface covered by 
delicate hairs ; the superior edge has also a single row of long hairs. 
The fosterior lamella small, pyriform. Length 1} to r} lin. 
They appear in May, June, July and August, according to 
Dziedzicki. 
P. nitidiventris, V. d. Wulp. 
The larvze of this species live in rotten wood. 
The ¢ organs blackish-brown. The posterior border of the 
lamina basalis is divided into three blunt lobes by two moderately 
deep cuneiform depressions ; the middle lobe is the largest and more 
convex than the lateral; the external surface is covered by delicate 
hairs. The forceps inferior is almost rectangular in form, the ex- 
ternal border larger than the internal ; the posterior border furnished 
by a row of strong and also long hairs ; the whole external surface 
covered by delicate hairs. The forceps superior, sickle-shaped 
(faucilliforme), furnished .on the posterior borders and on the 
internal with small hairs; in the middle of this last piece is a 
triangular lamella furnished on its superior border with a row of 
strong hairs ; on the external parts of the forceps are found mem- 
branous lamellz with rows of rods (Jaguwettes). 
Ovipositor brown. The ars dasalis supera: the posterior border 
is notched with three semicircular depressions, the middle one much 
deeper than the lateral ones; the external surface is bare, and there 
is a fine and long hair at the posterior angle. The pars dasalis 
infera is a truncated triangle in: form, with the posterior angles 
rounded ; the external surface and posterior border are covered by 
delicate hairs. The ant, or superior Jamella, is. heart-shaped, 
depressed in a deep’ arch on the posterior surface; the external 
surface covered by minute hairs. The fost, or inferior lamella, is 
in the form of a button, and is furnished with some short and strong 
hairs. Length 14 to 1 lin. 
The zmago is found in May, June, July and August. 
The descriptions of these two British examples of the genus 
Phronia are taken from Dziedzicki’s monograph of the genus. He 
