A contribution to the knowledge of New World Bruchinae (Coleoptera, Chrysomelidae): taxonomic revision of Ctenocolum Kingsolver & Whitehead, with description of five new species
Author
Albuquerque, Felícia Pereira De
Author
Manfio, Daiara
Author
Ribeiro-Costa, Cibele Stramare
text
Zootaxa
2014
3838
1
1
45
journal article
10.11646/zootaxa.3838.1.1
e5103854-af5b-4e33-958b-163592f0b388
1175-5326
286727
1534C775-D28D-470F-9AEC-8BABB3D8FA56
Ctenocolum pygospilotos
Albuquerque & Ribeiro-Costa
sp. nov.
(
Figs. 16
,
29
,
41
,
60
,
73
,
85
,
97
)
Type
material.
Holotype
deposited in
USNM
, male: “Donald De Leon/ *83240June’40/ St. Thomas, A.V.I.” [white label handwritten in black]; “From Ichthyo-/ methia pisci–/ pula seeds” [white label handwritten in black]; “HOMOTYPE/
Bruchus
/
podagricus
F./ 1967/ Comp. by JV. G. Larsson” [white label with black margin, HOMOTYPE letters printed in red, remainder handwritten in black]; “♂” [white label printed in black]; “
HOLOTYPE
/
Ctenocolum pygospilotos
/ Det. Albuquerque & Ribeiro-Costa” [white label with red margin, printed in black].
Diagnosis.
See comments in
C. punctinotatus
.
Description.
BL:
2.8 mm
; BW: 2.0 mm. Integument. Dorsum reddish brown and black. Antenna dark brown and dark brown, first 3 paler (
Figs. 16
,
60
). Pygidium reddish brown and black. Ventral region reddish brown and black. Front and middle femur and tibia brown; hind femur brown and dark brown.
Pubescence. Pronotum yellowish gray, brown and white; sparse setae exposing the integument forming an oval, wide area from anterior to posterior region divided by transversal strip of dense setae (
Fig. 16
). Elytra slightly variegated, yellowish gray and white; interstria 3 without white setae at base and at submedian region with short sparse strip of white setae (
Fig. 16
). Pygidium white and yellowish gray, dense except two small lateral and one larger at median and apical areas with sparse setae (
Fig. 41
). Ventral region yellowish gray and white (
Fig. 60
).
Head. Ocular sinus
0.3 mm
; ocular index 6; length of eyes in frontal view behind sinus
0.12 mm
(
Fig. 29
). Antenna serrate from antennomere 4-10 (
Fig. 60
). Frons with frontal carina (
Fig. 29
).
Prothorax. Pronotum with median gibbosity slightly elevated, not divided by longitudinal and transversal sulcus (
Fig. 60
); lateral gibbosity slightly elevated; basal lobe with depression and slightly emarginated (
Fig. 16
).
Mesothorax and metathorax. Elytra, striae with punctures deeply impressed (
Fig. 16
); less conspicuous teeth at base of striae 3 and 4; tooth of stria 4 closer to base of tooth of stria 3 than to anterior margin of elytra; stria 6 conspicuously impressed.
Hind
femur (
Fig. 73
) on external ventral margin with toothed carina; without denticles above of external ventral margin; pecten with 8 teeth.
Hind
tibia (
Fig. 73
) strongly emarginated beside mucro; lateral coronal denticles present.
Abdomen. Pygidium longer than wide, oval, at median basal region with deeply impressed punctures (
Fig. 41
).
Male genitalia. Median lobe, ventral valve as long as wide, lateral margin concave on subapical region (
Fig. 85
), basal margin strongly emarginated. Internal sac, lateral apex with short tuft of setae, hinge sclerite with base curved, short, extending over 1/3 of subapical region; subapical region with homogeneously distributed spicules, medially dense in elongated strip; median region with dense spicules forming two irregular elongated groups; submedian region with squamous open ring-shape sclerite (
Fig. 85
); basal region in lateral with sparse denticles. Tegmen (
Fig. 97
), lateral lobes separated by emargination about 0.75 times the length of lateral lobes; internal margin near end of emargination curved, forming a “U”; expanded at apex, about 4 times the smallest width on median region; without membranous projection at apex.
Note. The female is unknown.
Etymology.
The specific name “
pygospilotos
”
refers to punctures deeply impressed at pygidium.
Distribution.
Neotropical region:
United States Virgin Islands
.
Host plant
(Tables I–II).
Papilionoideae
:
Piscidia piscipula
(L.) Sarg. (=
Ichthyomethia piscipula
(L.) Hitchc.).