Forcipomyia fuscimana (Kieffer, 1921)

Pal, Gouri Sankar, Brahma, Shubhranil & Hazra, Niladri, 2023, One new species and new records of three species of the genus Forcipomyia Meigen, 1818 (Diptera, Ceratopogonidae) from West Bengal, India, Evolutionary Systematics 7 (1), pp. 83-89 : 83

Forcipomyia fuscimana (Kieffer, 1921)

Fig. 5

Forcipomyia fuscimana (Kieffer, 1921): 559; Tokunaga and Murachi 1959: 216.

Forcipomyia pennielongata Chan & LeRoux, 1971: 733; Liu and Yu 2001: 511.

GenBank accession number.

MZ539943

Material examined.

2♂♂, India, West Bengal, Purba Bardhman, Burdwan Town (23°13'33"N, 87°51'30"E), Light trap, 09.I.2021, Col. N. Hazra. 2♂♂, West Bengal, Birbhum, Suri, Maliha (23°51'11.76"N, 87°32'58"E), Light trap, 16.XI.2020, Col. G. S. Pal.

Diagnosis.

Male. Aedeagus narrowly ‘V’ shaped, basal arch much broader than apical part. Female. Third maxillary palp segment with irregular sensory pits bearing capitate sensilla. Spermathecae two, subequal and oval.

Male (n = 4).

Supplementary description.

Length ratio of flagellomeres (I-XIII): 30-32 (30.7): 17-18 (17.5): 18-20 (19.5): 20-21 (20.7): 16-17 (16.5): 16-18 (16.7): 18-19 (18.2): 19-22 (20.7): 21-25 (23.5): 59-63 (61): 42-46 (42.5): 24-27 (25.2): 30-32 (31); AR 1.12-1.15 (1.13). Length ratio of palpal segments (I-V): 12-13 (12.2): 13-15 (14): 36-41 (38.2): 21-24 (22.7): 10-12 (11); PR: 4.50-5.12 (4.78). WL 1.15-1.20 (1.17), WW 0.40-0.43 (0.42); CR 0.44-0.47 (0.45). Tarsal ratio of fore, mid and hind legs 0.93-0.98 (0.96), 0.57-0.61 (0.59), 0.65-0.71 (0.68) respectively. Gonocoxite 1.75 times longer than width, gonostylus about 0.8 times of gonocoxite length. Parameres fused forming V shaped structure. Aedeagus (Fig. 5 ) almost 1.5 times longer than its basal width, gradually narrowed apically.

Discussion.

Indian specimens are larger in size than others of the world. Wings are wider, and both CR and AR are higher than those of others.

Distribution.

China, Taiwan, New Guinea, Micronesia, Singapore, Australia and India (new record).

Bionomics and ecology.

The above species are prevalent in different locations of West Bengal. The new species Forcipomyia (Forcipomyia) hispida sp. nov. got collected from the Dooars region (Jayanti), predominantly covered with long trees ( Shorea robusta , Michelia champaca , Schima wallichii , Lagerstroemia purviflora , Terminalia bellirica, Toona ciliata etc.) at an altitude of 208 m. Forcipomyia (Dycea) hamoni was sampled from the Darjeeling Hills (Eastern Himalayas) at an elevation of 2078 m. Two other species, Forcipomyia (Euprojoannisia) calamistrata and Forcipomyia (Euprojoannisia) fuscimana , were collected from the Gangetic plains, at an altitude of 30-73 m.

Figures

Figure 5. Forcipomyia (Euprojoannisia) fuscimana (Kieffer, 1921). Adult male genitalia. Scale bar: 0.05 mm.