Carbula biguttata (Fabricius)

Kaur, R., Singh, D. & Kaur, H., 2013, Taxonomic significance of external genitalia in differentiating four species of genus Carbula Stål (Heteroptera: Pentatomidae) from North India, Journal of Entomology and Zoology Studies 1 (3), No. 3, pp. 33-42 : 38-39

2.8 Carbula biguttata (Fabricius)

Coreus biguttata, Fabricius (1794) [ 6] Ent. Syst., 4: p. 129.

Cimex binotatus, Fabricius (1803) [ 7] Syst. Rhync., p. 165.

Pentatoma obscura, Westwood (1837) [ 8] in Hope Cat., 1: p. 35.

Carbula biguttata: Distant (1900) [ 9] Proc. Zool. Soc. Lond., p. 812.

2.8.1 Body length: J- 7.5 mm, ♀ - 8.5 mm (Fig. 3 A)

2.8. 2 Male Genitalia: Pygophore (Fig. 3 B) about as long as broad, lateral margins obliquely straight; dorsolateral lobes subprominent, rounded posteriorly; dorsomedian surface sinuately concave; dorsal opening broadly concave, small; ventroposterior margin medially broadly concave; paramere (Fig. 3 C) bilobed, inner lobe elongated, spoon like, narrowed at apex, outer margin concave; outer lobe of paramere slightly broad, bilobed apically, outer margin convex with a distinct medial hump; aedeagus (Fig. 3 D) with distally broad sclerotized theca; dorsolateral membranous conjunctival appendages bilobed that are fused basally; a pair of small leaf like semisclerotized medial penial lobes, placed widely apart distally and fused medially; vesica very short, neither reaching reaching middle of penial lobes nor posterior margins of dorsal membranous appendages.

2.8. 3 Female Genitalia: 1 st gonocoxae placed medially wide apart, broadly triangular with posterior margins sinuate and convex; 2 nd gonocoxae fused medially with posterior margin sinuately convex; 8 th paratergites broad, triangular with posterior margins sinuately convex; 9 th paratergites distinctly lobulate, broadly rounded at posterior margins, placed close to each other with concave outer margins, reaching fused posterior margins of 8 th paratergites (Fig. 3 E); spermatheca (Fig. 3 F) with distinct proximal and distal flanges; pump region sclerotized, tube like, shorter than distal spermathecal duct; bulb oblong; medial dilation broad with elongate proximal dilation directed posteriad; proximal spermathecal duct distinctly longer than distal spermathecal duct.

2.9 Material Examined:

2.9.1 Punjab: Patiala , 12. viii. 2009 - 1♀ ; Hoshiarpur , 19. viii. 2009 - 1♀ ; Talwara , 20. viii. 2009 - 1♀ ; Ropar 6-7. ix. 2010 - 6♀♀, 6JJ

2.9.2 Himachal Pradesh: Solan , 18-19. viii. 2010 - 9♀♀, 5JJ

2.9.3 Distribution: Pakistan; India (Punjab, Himachal Pradesh, Maharashtra, West Bengal) 2.9.4 Remarks: The species closely resembles Carbula insocia in having humeral angles of pronotum subprominent, either with short acute or without spines; scutellum yellowish-brown with dark brown punctation, basal angles with impunctate brownish yellow spots, apex concolorous and punctate; head somewhat subsquarish; pygophore as long as broad; theca elongate and paramere with lateral process elongate, subacute at apex without bifurfaction. However, it can easily be separated from the same in having humeral angles of pronotum with short subacute spines, slightly directed backwards; 9 th paratergites broad, subequal to 8 th paratergites, not passing beyond the latter; vesica short, not reaching middle of penial lobes and outer margin of paramere with a distinct medial hump. It has been recorded as a pest of sesamum in India recently and is a new report from North India.