the cynipoid genus paramblynotus - American Museum of Natural ...

48 BULLETIN AMERICAN MUSEUM OF NATURAL HISTORY NO. 304
Metasomal sterna 4–6 not covered by sternum3andexposed................
2
2. Face evenly curved in lateral view. Genae
ventrally strongly expanded posteriorly. Median
mesopleural impression distinct. Lower
mesopleuron densely punctate with pubescence.
Apical teeth of metatibia rounded
apically; 1mt/2–5mt 5 2.0 . . P. alveolatus, n.sp.
– Face distinctly raised medially and curved
inward ventrally in lateral view. Median
mesopleural impression usually obscured by
extension of longitudinal carinae in upper
mesopleuron. Lower mesopleuron glabrate
and sparsely punctate with sparse pubscence.
Apical teeth of metatibia pointed apically;
1mt/2–5mt 5 1.5....... P. yangambicolus
Paramblynotus mixtus, new species
FEMALE:
Length 4 mm. Body entirely
dark; antennae and legs dark brown. Wings
clear. 1tm/2–5tm 5 1.1.
Head, in profile, medially not distinctly
raised anteriorly. Vertex foveate-reticulate.
Median frontal carina low, dorsally slightly
flattened, bifurcated posteriorly to delimit
a glabrous triangular area below anterior
ocellus, and ventrally extended in lower face
to the level of lower margin of eye. Eye
extended laterally beyond outer margin of
gena. Upper face foveate laterally; antennal
scrobe foveate rugose. Lower face and
clypeus entirely foveate-reticulate with pubescence.
Anterior tentorial pits distinct.
Clypeo-pleurostomal sulcus and epistomal
sulcus straight, not forming smoothly curved
arch. Gena foveate-reticulate. Occiput glabrous.
Anterior plate of pronotum before lateral
pronotal carinae densely punctate with pubescence.
Pronotum dorsomedially distinctly
raised, in lateral view height as highest point
of mesoscutum. Pronotal crest distinct and
medially without emargination. Lateral pronotal
carina distinct, nearly meeting pronotal
crest dorsomedially. Lateral surface of pronotum
foveate-reticulate. Dorsal pronotal
area foveate, reaching only to middle of
dorsal posterior margin of pronotum. Mesoscutum
foveate-reticulate with foveae set in
rows between transverse costae. Scutellar
foveae subdivided by submedian longitudinal
carinae weaker than median carina. Mesoscutellum
foveate-reticulate; sloping posteriorly
in lateral view; posterior margin rounded
in dorsal view. Mesopleural triangle
ventrally defined by a smoothly curved
carina; upper mesopleuron irregularly foveolate-reticulate;
median impression percurrent
with several vertical carinae; speculum with
distinct longitudinal carinae. Metanotal-propodeal
complex coarsely foveate-rugose with
dense pubescence except nude in upper
metepisternum. Lateral propodeal carina indistinguishable
except anteriorly; median
propodeal area areolate/foveate-reticulate.
Rs+M of forewing arising from basal vein
at posterior third.
Abdominal petiole 0.4 times as long as
wide in lateral view. Relative length of T3–8:
1.7:1:1:0.9:0.15:0.4. T4–8 densely finely punctate;
T8 also with a few slightly larger
setigerous punctures set in one row. All legs
densely punctate with pubescence except
metacoxa dorsally glabrous. Metatibia apically
with four slender, pointed teeth. 1mt/2–
5mt 5 1.0.
MALE: Unknown.
Paramblynotus mixtus is distinctly different
from the other two species of yangambicolus
group in a number of characters. Antennae
are not laterally compressed distally though
enlarged toward apex; median frontal
carina ventrally extended almost to clypeus
in lower face. Antennal scrobe coarsely
rugose. Eye prominent, protruding beyond
gena. Mesoscutum anteriorly curved in lateral
view; mesoscutellum sloped strongly
posteriorly; mesopleural triangle ventrally
well defined by a smoothly curved carina;
upper mesopleuron irregularly foveolate-reticulate;
speculum with distinct and rather
strong longitudinal carinae. Wings clear;
marginal cell of forewing only slightly longer
than submarginal cell. Metasoma oval in
profile, almost as long as head and mesosoma
combined; terga 3–6 subequal in size
dorsally; metasomal sterna 4–6 entirely covered
by sternum 3.
TYPE MATERIAL: HOLOTYPE: R, Kenya,
Ukunda, 1968-I-24, K.V. Krombein coll.
(USNM).
DISTRIBUTION: Kenya: Ukunda.
ETYMOLOGY: From Latin, mixtus, mingled.
The name describes the species’ possession
of a number of obviously plesiomorphic
characters that are more frequently found in
the other species groups.