A catalogue of Indian Pyraloidea (Lepidoptera)
Author
Singh, Navneet
0000-0002-6657-7983
nsgill007@gmail.com
Author
Ranjan, Rahul
0000-0003-4983-0403
rranjan720@gmail.com
Author
Talukdar, Avishek
0000-0002-4808-2901
avi.talukdar@rediffmail.com
Author
Joshi, Rahul
0000-0001-8514-1272
joshiarctiidae@gmail.com
Author
Kirti, Jagbir Singh
0000-0002-9670-5931
prjagbir2005@gmail.com
Author
Chandra, Kailash
kailash611@rediffmail.com
Author
Mally, Richard
0000-0001-5996-9471
spilomallynae@gmail.com
text
Zootaxa
2022
2022-10-25
5197
1
1
423
http://dx.doi.org/10.11646/zootaxa.5197.1.1
journal article
10.11646/zootaxa.5197.1.1
1175-5326
7252292
CCE28335-B063-47A5-8EFA-904B5B5BC99B
2.2.
Crambinae
Diversity and distribution:
worldwide, ranging from cold-temperate to tropical regions. Globally, the subfamily comprises 2,072 species in 175 genera (Nuss
et al.
2003
–
2022,
Léger
et al.
2020
). In
India
, 149 species in 40 genera are reported, representing 7.19% of the total global diversity of
Crambinae
. Of the 40 genera reported from
India
, 19 genera are known through single
Indian species
, 15 genera comprise two to 10 species in
India
, and the remaining six genera,
Ancylolomia
Hübner
,
Calamotropha
Zeller
,
Charltona
Swinhoe
,
Chilo
Zincken
,
Eschata
Walker
and
Glaucocharis
Meyrick
are known by more than 10 and fewer than 20 species (
Fig. 16
). In
India
, the highest diversity of
Crambinae
is reported from North East, followed by the Deccan Peninsula, the West- and North West Himalaya, Western Ghats, the central Himalaya, the Semi-Arid, the Gangetic plain, and Coasts (
Fig. 17
).
Adult characters:
mostly of small to moderate size. With their longitudinally streaky patterns on the forewings that are wrapped closely around the body in resting position, they generally mimic grass foliage (
Landry 1995
,
Holloway
et al.
2001
). The forewing termen is often notched. The discocellular spots in the hindwing are usually incomplete. The labial palps are long and porrect, and the maxillary palps have distally expanded scaling. In the forewing, the stem of CuA mostly exhibits a pecten of erect setae. In the male genitalia, the uncus and gnathos are distant from vinculum, juxta and valvae. The gnathos bears lateral arms articulating with the junction of tegument and uncus. The valvae usually exhibit a sclerotized and process-bearing costal region and sacculus. The phallus is medially attached to the juxta, which is a synapomorphy for the subfamily. In the female genitalia, signa are absent, but sometimes present as an inconspicuous group of spicules (
Munroe & Solis 1999
).
FIGURE 16.
Species diversity of
Indian
Crambinae
genera.
Larval characters:
in the head, the adfrontals usually reach maximally half of the coronal suture, AF2 above the furcation of the epicranial suture, lower than P2. Stemma 5 is dorsocaudal or caudal of stemma 6, and stemmata 4–6–5 form an acute or a right angle. O3 is below the line of stemmata 4–5, substantially closer to SO3 than to O2, O1–O2–O
3 in
an acute or a right angle. The pinacula are usually well developed, but sometimes unpigmented. Prothorax with XD2–
SD
1–
SD
2 in
a right to obtuse angle, meso- and metathorax with L2 macroscopic. Distance of D2–D2 on A1–A8 considerably longer than D1–D1, and L1 posterodorsal of L2. A1 with three SV setae. Stigma on A8 located caudal of the lines connecting D1 and
SD
1 as well as
SD
1 and L1. A9 with D1 near to and anterodorsally of DS1, and D2 of both sides on a single pinaculum, L2 absent. Anal plate well developed. A10: distance of II–II ≤ II–III, III a is macroscopic, distance V1–V1 smaller than on A9. The abdominal legs are fully developed, with crochets bearing two to three rows of hooks (
Hasenfuss 1960
,
1963
).
Food plants:
larvae are mainly stem or root borers or ground-living leaf feeders of various grasses, sedges, rushes, bamboos, or mosses, rarely on other plants (
Munroe & Solis 1999
,
Holloway
et al
. 2001
). The root-feeding species are most diverse in temperate zones, whereas stem-borers are more diverse in tropical and subtropical areas (
Munroe & Solis 1999
). The genus
Chilo
has several species that are stem borers of cereal crops and sugarcane in the Africa (
Holloway
et al.
2001
).
Crambinae
larvae are common turf and sod species, and numerous species also feed on maize and other field including sugar cane and rice, where they are considered pests.