No. 413.] ABERRANT PHORIDA FROM TEXAS. 349 
narrowed basally; second, semicircular; third, subtriangular ; fourth, 
twice as wide as long, rectangular. All except the first are almost rudi- 
mental. Just in front of the fourth plate there is a horseshoe-shaped piece 
of chitin, enclosing a pit from which projects a papilla from 
the interior of the abdomen (Fig. 9, e). Exterior sexual 
organs consisting of a stout longitudinal axis, obtusely 
pointed at tip, where it bears two macrochete (Fig. 9, a). 
The two lamellz are attached laterally upon the sides of 
the central piece near the tip. Lamella about as long as 
the diameter of the central axis, elongate, gradually enlarged 
toward the tip, where they are rounded ; covered with nu- 
merous stout bristles. All the apical segments of the 
abdomen bear several marginal macrochete. 
Male (Fig. 10). Length .68 mm. ; of wing the same. 
Body alutaceous. Thorax infuscated above. Abdomen 
piceous on basal three-fourths above, except on the anterior 
margins of the segments, where it is much paler. Antenne, 
palpi, face, and legs pale testaceous. Anterior tibie black, 
except at extreme base. Hypopygium more or less black. 
Wings hyaline, veins pale. Head shaped much as in the 
female ; eyes larger, not much smaller than in species of 
Fic. 8. — Ecitomyia Phora ; ocelli present, large, in a triangle on the vertex. 
n n: sP.. Head seen from the side, about twice as high as long. 
; Chætotaxy the same as that of the female, except that the 
most anterior pair of frontal bristles is shorter. The macrochætæ on the 
in the female. Thorax 
arched in front, more 
than twice as long as 
the head. Scutellum 
well developed, bear- 
with three marginal 
Macrochete and a 
Pair just before the 
Scutellum. Legs 
longer and more slen- 
d d J 
d bdomen, 9 : 
er than those of the 8, apex of abdomen, Phora sp. (), 9: c, hind metatarsus, 9 ; 
; di ttal section of ¥; 7, head; 2, pro- 
at tip, hind trochan- thorax; 3, mesothorax; 4, metathorax; 5, abdomen. 
Loreen d 
Fic. 9. — Ecitomyia wheeleri, n. sp. a, apex of a 
female, Coxæ bristly d, diagrammatic median sagi 
ters each with a pair of very strong recurved spine-like macrochætæ. Wings 
large, as long as the body, with a stout longitudinal vein which meets the 
