PARKER: XKW ENGLAND SARCOPHAGIDAE. 05 
perfectly t'uniilitir witli the two species, hut if tliese l)ristk's are weiik 
the latter is more relial)le (see discussion followinji quadrisetosa). The 
small sharp pronjjs or projections Ijorne on the lateral processes of the 
penis are subject to sonic variation in shape; the lowermost that 
curves backward toward the end of the penis is sometimes lacking. 
These are probably only indixidual xariations. 
Boettcheria, n. gen. 
Genotype, Bocftcheria latistcrna, n. sp. 
Medium-sized to large flies. PVont very prominent, of narrow or 
medium width; back of head covered Avith black cilia nearly down to 
foramen; vestiture of metacephalon consisting wholly or in part of 
whitish-yellow or yellowish hair; cheeks clothed with black hair; 
gena with a short row of slender bristles on its lower edge bordering 
transverse impression, otherwise practically bare; frontal bristles 
extending well below vitta, abruptly and widely dixerging near its 
base toward eye orbits. Epaulets dark; posterior trochanter without 
comb; anterior face of posterior femur with several rows of bristles, 
those of the intermediate row or rows usually considerably longer and 
stouter, but never shorter than those of upper or lower rows; fourth 
tarsal joint less than one half length of fifth, usually about one third; 
middle femur without anterior and posterior ventral rows of bristles, 
the former represented by a few bristles at center; four notopleurals, 
second and fourth longest; anterior dorsocentrals much longer than 
vestiture of prescutum; acrostichals, present or absent; inner pre- 
sutural absent; lower sternopleura with a single row of bristles; 
ventral plates very broad, as a whole, with their sides diverging poste- 
riorly (PI. 3, fig. 21); vestiture of third scanty, especially at center, 
short and decumbent. Genital segments prominent, second much the 
smaller; forceps short, prongs but slightly spread, if at all; basally, 
with short upward flap-like extensions clothed with long, fine, curly hair. 
The species studied also agree in the following characters, but I do 
not feel sure that they are of more than specific value: vestiture of 
metanotum consisting of scattered hairs that are but slightly inclined 
backward; tibiae blackish; three pairs of dorsocentrals; accessory 
plates of forceps prolonged into linear processes^ 
The species of this genus are distinct from those of Sarcophaga in 
many ways. Specimens were submitted to Dr. Bottcher, in whose 
honor the genus is named, and he has fully agreed with me in this 
