Three new genera of Coccidae (Homoptera: Coccoidea)

5 Pages·1993·2.5 MB·

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NEW DESCRIPTIONS 73
Some of the characteristics of genus Bui Acknowledgements
bophyllum are: Inflorescence racemose, usually
strongly bent at the base of rachis; the lateral My sincere thanks are due to Dr P.M.
sepals less than twice the length of the dorsal Singh, Scientist SB, Botanical Survey of India,
mm
sepal; flowers 0.56-6.00 long. The fresh Gangtok, for his valuable suggestions and Dr S.
specimens were found to be different in several Kumar, Scientist SD, Botanical Survey of India,
characters from other Bulbophyllum species. Gangtok, for going through the manuscript.
The new taxon is closely allied to Bulbophyllum Thanks are due to Mrs Kalyani Thapa, Curator
triste Rehb. f. from which it differs as shown in of Gangtok Forest Department Herbarium, for
Table 1. making herbarium sheets, and to Dr N.C.
Etymology: Because of its prominent yel- Majumdar, Scientist SE (Retd.), Botanical
low colour the new species is namedflavida. Survey of India, for Latin translations.
THREE NEW GENERA OF COCCIDAE (HOMOPTERA COCCOIDEA 1
: )
4.
RajendraKumar Avasthi2
(With two text-figures)
Three new genera: Varshneococcus, Sharanococcus and Prococcus based on Coccus
species are proposed. 5.
The revision of Indian species of Coccus lolateral and caudolateral margins forming distinct
Linnaeus reveals that the species C. adersi — lateral angles 4
Anal plates together oval with cephalolateral and
(Newstead), C. bicruciatus (Green), C. watti
caudolateral margins fused together to form a con-
(Green) and C. acutissimus (Green) are not con-
tinuous curve Sharanococcus gen. nov.
generic, though they have affinities with Coccus Stigmatic spines 3, median longer than laterals; para-
in3.the absence or presence of few tubular ducts — opercular pores ifpresentnever extend up to head ... 5
on venter. The presence of oval anal plates in C. Stigmatic spines 2 of equal size on either end of the
adersi C. bicruciatus and C. watti numerous sclerotized band; para-opercular pores numerous, ar-
, ;
stigmatic spines in C. adersi; reduced legs and ranged in a band along median line of the body and
extended as far as the head
antennae in C. acutissimus distinctly separate &
Marsipococcus Cockerell Bueker
We
these species from Coccu—s. therefore Dorsum with large tessellation
propose three new genera Varsluieococcus — Eucalymnatus Cockerell
for C. adersi Sharanococcus for C. bicruciatus Dorsum without tessellation Coccus Linnaeus
,
and C. watti and Prococcus for C. acutissimus. —6. Cribiform plates present on dorsum 7
,
Cribiform plates absent on dorsum
KEYTOSOMERELATED GENERAOFCOCCIDAE, Prococcus gen. nov.
BASEDONADULTFEMALES 7. Legs and antennae rudimentary; derm around anal
— plates unsclerotized Cribrolecanium Green
—1. Legs and antennae well developed 2 Legs and antennae absent; derm around anal plates
Legs and antennae absent or much reduced 6
strongly sclerotized Akermes Cockerell
—2. Stigmatic spines 2-3 3
Stigmatic spines numerous Genus Varshneococcus gen. nov.
Varshneococcus gen. nov.
Anal plates together roughly quadrate with cepha- Type-species: Lecanium adersi Newstead,
’
1917.
1Accepted October 1992. Diagnostic features: Shape: Mounted
department ofZoology, Vaish College, Rohtak 124 001. specimens irregularly oval. Dorsum: Setae
74 JOURNAL, BOMBAY NATURAL HIST. SOCIETY, Vol. 89
minute and spiniform. Para-opercular pores and continuous curve; each plate with three apical
submarginal tubercles absent. Tubular ducts few and one subapical setae. Margin: Setae small,
on submargins of body. Anal plates together curved, simple, bifid and fimbriate. Stigmatic
oval, with cephalolateral and caudolateral mar- clefts each with large chitinized rim and three
gins fused together to form a continuous curve; spines. Venter: Quinquelocular pores in a row
each plate with three apical and four subapical between spiracles and stigmatic clefts. Multi-
setae. Margin: Setae small, curved, dilated api- locular pores absent. Tubular ducts few, around
cally. Stigmatic clefts each with 18-24 cylindri- genital opening only. Antennae 6 to 7-seg-
cal setae ofvariable length and diameter. Venter: mented. Legs well developed, without tibio-tar-
Quinquelocular pores few near cleft and sal articulatory sclerosis; claws simple.
spiracular opening. Multilocular pores absent. The genus is represented by two species.
Tubular ducts few, confined to genital opening. The new genus has affinities with Varshneococ-
Antennae 7-segmented, sometimes 6-seg- cus gen. nov. in having oval anal plates but dis-
mented. Legs well developed, without tibio-tar- tinctly differs from it in having three stigmatic
sal articulatory sclerosis; claws simple. spines. It is named after Dr. Sharan Behari Gos-
The new genus has affinities with wami, Ex-Principal, I.O.P., Vrindaban, for his
Sharanococcus gen. nov. in having oval anal constant inspiration for work.
plates but distinctly differs from it in having
numerous stigmatic spines. It is named after KEYTOSPECIES OF SharanococcusGEN. NOV.,
Dr R.K. Varshney, Scientist, Zoological Survey BASED ONADULTFEMALES
of India, Calcutta, for his contribution to the
1. Marginal setae bifid and fimbriate
study of Coccoidea.
— S. bicruciatus (Green)
Marginal setae simple S. watti (Green)
Varshneococcus adersi (Newstead), comb. nov.
(Fig- 1) Sharanococcus bicruciatus (Green), comb. nov.
Lecanium adersi Newstead, 1917: 357. (Fig- 2)
Coccus adersi (Newstead); De Lotto, 1959: Lecanium bicruciatum Green, 1904 214.
:
&
155; Arasthi Shafee, 1991: 330. Coccus bicruciatus (Green); Green, 1904:
Material examined: One slide with two 248; De Lotto, 1957 299; Avasthi & Shafee,
:
adult females, labelled: Lecanium adersi 1991 331.
:
Newstead, from Mango, Zanzibar, 1913, R. Material examined: One slide with three
Newstead (BMNH). adult females, labelled: Coccus bicruciata
The species was redescribed and illustrated (Green), on Capparis mitohrili August 12,
in detail by De Lotto (1959) and Avasthi & 1931; Chinrhilla (NMNH). ,
Shafee (1991). The species was redescribed and illustrated
&
in detail by De Lotto (1957) and Avasthi
Genus Sharanococcus gen. nov.
Shafee (1991).
Type-species: Lecanium bicruciatum
Sharanococcus watti (Green), comb. nov.
Green, 1904.
Diagnostic features: Shape: Mounted Lecanium watti Green, 1900 6.
:
&
specimens more or less oval. Dorsum: Setae Coccus watti (Green); Rao Kumar, 1952
&
minute and spiniform. Para-opercular pores and Avasthi Shafee, 1991 345.
: 3; :
submarginal tubercles absent. Anal plates Saissetia watti (Green); Ali, 1971 45.
:
together oval with cephalolateral and The species was redescribcd and illustrated
caudolateral margins fused together to form a in detail by Rao and Kumar (1952).
NEW DESCRIPTIONS
mm
0.02
Fig. 1. Varshneococcus adersi(Newstead) comb. nov. female. See text for explanations.
76 JOURNAL, BOMBAY NATURAL HIST SOCIETY, Vol. 89
0.02
mm
Fig. 2. Sharanococcus bicruciatus (Green) comb. nov. female. See textfor explanations.
:
NEW
DESCRIPTIONS 77
Genus Prococcus gen. nov. together, claws simple.
* The new genus has affinities with
Type-species: Lecanium acutissimum Cribrolecanium Green in having reduced legs
Green, 1896. and antennae but distinctly differs from it in the
Diagnostic features: Shape Body of adult absence of cribiform plates on dorsum. The
female elongate, slender and pointed at apices. generic diagnosis is based on the illustrations
Dorsum: Membranous but strongly sclerotized and description given by Gill et al. (1977) for
in older specimens. Setae spinose with pointed Coccus acutissimus (Green).
or blunt apices, clavate or cylindrical with al-
Prococcus acutissimus (Green), comb. nov.
most truncate apices. Submarginal tubercles
present. Para-opercular pores variable in num- Lecanium acutissimum Green, 1896 10.
:
ber. Anal plates more or less quadrate with dis- Coccus acutissimus (Green); Gill et al
.,
&
tinct lateral angles; each plate with two 1977 12; Avasthi Shafee, 1991: 330.
:
subapical, three apical and one subdiscal setae. Gill et al. (1977) redescribed and illustrated
Margin: Setae slender, pointed and sparse. Stig- the species in detail.
matic clefts with three setae, median much
Acknowledgements
longer than laterals. Venter: Quinquelocular
pores in a single row between spiracles and stig- I am thankful to Dr J.M. Cox, BMNH,
matic clefts. Multilocular pores few, confined in London, Dr. D.R. Miller, U.S.D.A., Bcltsville,
anal region and on preceding 2-3 abdominal Maryland, and Dr D.R. Davis, Chairman,
segments. Tabular ducts absent. Antennae much Department of Entomology, NMNH,
reduced; 3-segmented, sometimes with Washington D.C. for arranging the loan of the
membranous division indicating five segments. type material for study.
Legs greatly reduced, tibia and tarsus fused
References
A
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genus Coccus (Homoptera Coccoidea Coccidae). Mus. Notes 5: 1-13.
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EnL Soc. SouthAfricaJour. 20: 295-314. Green, E.E. (1904): The Coccidae of Ceylon, pt. III. pp.
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: :
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