34 Psyche [February 
8. Abdomen with distinct segments, indicated by 4-6 dorsal plates or — 
evident constrictions...... Ri .10 
Abdomen with all the eae Fiséd ie, a panel Se or ring ney 9 
9. Abdomen with two segments, the first short, the second long. 
Thau matoxena. 
Abdomen im unsepmentbed ser sat devotee oes ae 
10. Ocelli absent. . bd? ayes chastened oe ae ie Teron ae ee el 
Ocelli present.......... er er ee -Puliciphora. 
11. Abdomen entir oy Ga ee be aes A eRe gS, See “Wandolleckia. 
Abdomen with chitinous plates. ....................-% Bae ly 
12. Body flattened, oval, cockroach-like................. _Aenigmatistes. 
Body more convex, with the usual tripartite form..................18 
13. Dorsal abdominal plates wide, crossing the entire width of the abdomen. 
Chonocephalus. 
Dorsal plates much reduced in width...............€ryptopteromyia. 
Coryptilomyia gen. nov. 
Female. Wings fully developed; costa long, weakly ciliate; third vein 
simple, bare, neither furcate nor swollen at the apex; first vein long; fourth 
vein curved parallel to the costa, ending at the wing-tip after a course much 
nearer the costa than usual; 5th to 7th veins distinct, complete. Head with 
the vertex prolonged in front, then sharply declivous on the front which bears 
a raised margin above, giving the front of the head a truncate, shield-shaped 
appearance. Front without bristles except for an occipital row of four and a 
similar series of much more delicate ones just anterior to these. Antennae 
subovate, with dorsal arista. Palpi short, scarcely bristly; proboscis very 
short, almost rudimentary. Body very robust, the mesonotum broad; scutel- 
lum strongly transverse, nearly four times as broad as long. One pair of 
dorsocentral macrochaetae and six scutellar bristles in addition to one close 
to each lateral angle on the mesonotum. Legs rather slender, tibiae without 
macrochaetae, hind ones delicately setulose. ~ 
Coryptilomyia armigera sp. nov. 
Female. Length 3 mm. Yellowish brown or tinged with castaneous; 
pleurae and legs fuscous or piceous; abdomen almost entirely piceous, some- 
times yellowish medially at the base, the segments with narrow whitish mar- 
gins. Antennae and palpi bright orange yellow. Head seen from the side 
less than twice as high as thick, sharp above then concave and sloping down to 
the upper edge of the frontal shield from which it falls off perpendicularly to 
the antennal cavities. Eyes large, bare, narrowly oval. Antennae rather 
large, ovate, with a nearly bare arista as long as the head height. Palpi short 
and stout, with very delicate bristles below. Ocelli large, ranged in a curved 
row and well separated. Viewed from the front, the head is about twice as 
broad as high, the margin of the frontal shield above almost semi-circular in 
outline, the margin below truneate medially and scalloped out on each side to 
