ART. 17. MONOPHLEBINAE AND MARGARODINAE—MORRISON. 15 
with those of the other species of the genus, with small multilocular 
disk pores, with usually triangular or quadrangular centers in the 
mid-dorsal region, scattered but not all abundant or crowded, with 
similar but somewhat larger pores in the mid-ventral region, laterally 
with a broad band of scattered, distinctly larger pores with circular 
to indefinitely pentagonal centers and relatively long internal tube, 
similar to those of pilosior, the area of larger pores delimited exter- 
nally, at least on the posterior abdominal segments, by a fairly con- 
tinuous band of small body spines; large trilocular tubular pores 
apparently lacking in this stage; derm spines small, the maximum 
F1G. 8.—MONOPHLEBULUS SUBTERRANEUS, NEW SPECIES. A, ADULT FEMALE, DISK PORE, X1,500; B, 
ADULT FEMALE, SETAE AND SPINES, 640; C, ADULT FEMALE, SECTION OF DORSAL DERM JUST BEHIND 
POSTERIOR LEGS, X165; D, ADULT FEMALE, LEG, 57.5; E, PREADULT FEMALE, ANAL TUBE, X165; 
F, ADULT FEMALE, SECTION OF VENTRAL DERM IMMEDIATELY BELOW THAT FIGURED AT Cex65; 
G, ADULT FEMALE, DISK PORE FROM POSTERIOR PORTION OF ABDOMEN, 1,500; H, ADULT FEMALE, 
ANTENNA, X57.5, 
length in the mid-dorsal region 39y, in the mid-ventral region 57y, 
dorsal spines averaging somewhat stouter and shorter than ventral; 
spines not conspicuously longer toward body margin, all spines rela- 
tively far less abundant and much more widely separated than in 
other species of the genus; body setae even more scattered than 
spines, a few near margin much longer; anal tube similar to that of 
other species in the genus; ventral cicatrices in irregular, transverse, 
single segmental rows in the abdominal region; in paired lateral 
clusters in thoracic region. 
