186 
PACIFIC SCIENCE, Vol. IV, July, 1950 
1945 (G. E. Bohart, J. L. Gressitt). Para- 
types: Seventeen females, fourteen males, 
same data as holotype; seven females, five 
males, same data as allotype; one male, one 
female, Point Oca, Guam, December 20, 
1945 (Gressitt); one male, Asan, Guam, 
December 16, 1945 (Gressitt); two females, 
Point Oca, near Agana, Guam, May 27, 1945 
(Gressitt), at lights; one female, Point Riti- 
dian, Guam, June 28, 1945 (Bohart & Gres- 
sitt); two females, one male, Namru 2, 
Guam, May 7, 1945 (Gressitt). 
In Kertesz’ key (Mus. Nat. Hungarici Ann. 
14: p. 163, 1916), this species does not run 
past the first couplet, since the antennal fla- 
gellum is distinctly darkened above, but the 
arista is much longer than the rest of the an- 
tenna and the legs are almost unicolorous. 
The relationship is probably closest to P. in- 
termedins Kertesz, from Formosa, but in that 
species the antenna is wholly yellow, the 
femora are darkened on the apical third, and 
the mesonotal pile, anteriorly and on the 
swellings behind the suture, is blackish. 
Wallacea albiseta de Meijere 
Wallacea albiseta de Meijere, 1907, Tijd. v. 
Ent., 50: 236. 
Material examined: Point Oca, Guam, May, 
1945 (G. E. Bohart, J. L. Gressitt), two fe- 
males, one male. 
Cephalochrysa infuscata new species 
Female: Head about 1.65 times as wide 
as high. Front at upper corner of eyes about 
one- third head width, narrowing gradually 
to the face, which is nearly parallel-sided on 
its lower part; front metallic bluish with lav- 
ender reflections, finely punctured and with 
fine pale hairs arising from the punctures, ex- 
cept along the narrow median line where it 
is slightly raised and glabrous, and more par- 
ticularly at the anterior extremity of this line, 
where the glabrous areas are expanded into 
an inverted V; frontal callus entire, forming 
a transverse band which is biarcuate above, 
as a result of the V-shaped glabrous area; the 
callus whitish above, brownish below as it 
merges into the brownish-black of the face. 
Occipital orbits broad above, blue with lav- 
ender reflections and with punctures as on 
the front, becoming narrow and blackish be- 
low. Comparative measurements in micro- 
meter units (30 = 1 mm.), based on holo- 
type: Head width, 69; head height, 42; width 
of front, upper angle of eyes, 23; width of 
front, upper margin of callus, 20; width of 
face, 15; maximum width of occipital orbit, 
9. Occiput black, with bluish reflections 
above. Antennae reddish-yellow; proboscis 
pale yellow. 
Mesonotum and scutellum chiefly metallic 
blue, with violet reflections and with short, 
appressed pale pile; humeri and notopleural 
margin yellow, however, and postalar calli 
and apex of scutellum reddish-yellow, the 
postalar calli with black hair. Postscutellum 
and upper pleural areas largely metallic blue; 
lower pleural areas largely black but becom- 
ing yellowish in irregular and variable areas 
on the pteropleura and sternopleura. 
Coxae, femora, hind tibia, upper surface of 
hind tarsus, and basal half of front and mid- 
dle tibiae, especially above, blackish; all these 
segments usually paler basally and apically; 
legs otherwise yellow or yellowish. Wings 
infuscated, especially through the discal cell 
and thence along the anterior part of the 
apical half of the wing, the stigma the dark- 
est; veins blackish. 
Abdomen distinctly broader than the head 
or thorax, metallic green to blue above, with 
violet or purple reflections, especially on the 
sides or ventrally. 
Length, 6-7.5 mm.; of holotype, 7 mm. 
Male: Eyes, as usual, broadly contiguous. 
Legs more extensively pale than in the fe- 
male but with the middle and hind femora, 
the basal half of the middle and hind tibiae, 
and the hind tarsi, particularly above, black- 
ish. Wings infuscated as in the female. Ab- 
