Dendrocellus inexpectus Liang and Kavanaugh, 2007

Liang, Hongbin & Kavanaugh, David H., 2007, Review of the Genus Dendrocellus Schmidt-Göbel (Coleoptera: Carabidae: Dryptini), with Descriptions of Seven New Species, The Coleopterists Bulletin (Oxford, England) 61 (1), pp. 1-39 : 1-39

Dendrocellus inexpectus Liang and Kavanaugh , new species

( Figs. 11 , 61 , 99–100 )

Types. Holotype: a male (ISNB), ‘‘Barway, P. Cardon’’/‘‘Coll. R. I. Sc. N. B. Inde’’/‘‘ HOLOTYPE, Dendrocellus inexpectus Liang & Kavanaugh n. sp., designated by H. B. Liang & D. H. Kavanaugh 2006’’ [red label]. Paratypes (total 9 specimens): 1 male and 3 females (ISNB), ‘‘Barway, P. Cardon’’/‘‘Coll. R. I. Sc. N. B. Inde’’/’’ PARATYPE, Dendrocellus inexpectus Liang & Kavanaugh n. sp., designated by H. B. Liang & D. H. Kavanaugh 2006’’ [yellow label]; 2 males (ISNB), ‘‘Konbir’’/‘‘Coll. R. I. Sc. N. B. Inde’’/’’ PARATYPE, Dendrocellus inexpectus Liang & Kavanaugh n. sp., designated by H. B. Liang & D. H. Kavanaugh 2006’’ [yellow label]; 2 males (ISNB), ‘‘Belgaum Bombay, H. E. Andrewes’’/‘‘ Desera geniculata Klug , det. H. E. Andrewes, 1920’’/‘‘W. Hansen vid. 1966, Desera geniculata Klug’’/‘‘Coll. R. I. Sc. N. B. Inde’’/’’ PARATYPE, Dendrocellus inexpectus Liang & Kavanaugh n. sp., designated by H. B. Liang & D. H. Kavanaugh 2006’’ [yellow label]; 1 male (ISNB), ‘‘Barnai, 1892’’/ ‘‘Collection E. Candeze’’/‘‘ Dendrocellus geniculatus Klug, M. Maindron det. 1910’’/‘‘W. Hansen vid. 1966, Desera geniculata Klug’’/‘‘Coll. R. I. Sc. N. B.

24 Inde’’/’’ PARATYPE, Dendrocellus inexpectus Liang & Kavanaugh n. sp., designated by H. B. Liang & D. H. Kavanaugh 2006’’ [yellow label].

Type locality. Barway (near Chota Nagpur), India .

Diagnosis. Femora brown with apical sixth or seventh dark brown; tibia brown; apical two thirds of Ant 1 black; elytral outer angles slightly dentate; aedeagus with apical lamella short, round at apex ( Fig. 99 ).

Description. Length 9.2–10.5 mm, width 2.6–3.1 mm. Black with green luster, mixed with some copper luster, apical third of Ant 1 black, basal two thirds of Ant 1, Ant 2–11 brown; mandibles and palpi brown; tibia and apical sixth or seventh of femora dark brown, basal two-thirds of femora brown. Head with vertex slightly convex, densely punctate; Ant 1/Ant 3 5 3.54 (3.31–3.69); labrum with medial lobe slightly protruded anteriorly; genae short, distinctly tumid; eyes large, 2.7 times as long as genae. Pronotum densely punctate, PL/PW 5 1.48 (1.43–1.57), HW/PW 5 1.21 (1.16–1.27), widest slightly before middle; apical angles round; lateral margins slightly widened from apical angles to widest point, strongly narrowed behind, then sinuate to basal angles; basal angles obtuse, pointed laterally; lateral furrow indistinct; basal foveae shallow; middle line fine. Elytra short and wide, EL/EW 5 1.76 (1.69–1.85), EW/PW 5 2.35 (2.28–2.50); intervals nearly flat, densely punctate; outer angles slightly dentate. Protarsomere 3 slightly asymmetrical in male; tarsal claws with 5–6 long pectinations, length of individual pectination subequal to width of claw base ( Fig. 61 ). Aedeagus with apical lamella thin, very short, apex round ( Figs. 99–100 ).

Distribution. Barway and Bombay in India.

Etymology. This species is named for its discovery, which was unexpected.

Remarks. Members of this species are very similar to those of D. geniculatus (Klug) . In fact, we had not distinguished this species from D. geniculatus (Klug) until the specimens were dissected for genitalia comparison. Males can be distinguished from those of D. geniculatus (Klug) by the short and round lamella of the aedeagus. Moreover, femora of both sexes of this new species are brown with dark brown apex, whereas the femora of most D. geniculatus (Klug) specimens, including those of the holotype, are typically yellow with a black apex. Some specimens of D. geniculatus (Klug) do possess brown femora (e.g., from Vietnam and Sumatra), but the apex is still black, not dark brown.

Figures

Figs. 1–12. Habitus of Dendrocellus species. 1) D. australis (male, Congo); 2) D. coelestinus (syntype); 3) D. coelestinus (type of D. paralellus); 4) D. confusus (male, Thailand); 5) D. crassus (male, Borneo); 6) D. elegans (male, New Guinea); 7) D. rugicollis (lectotype); 8) D. geniculatus (holotype); 9) D. geniculatus (holotype of D. gilsoni); 10) D. gestroi (lectotype); 11) D. inexpectus (holotype); 12) D. javanus (holotype). Scale line 5 2.0 mm.

Figs. 57–72. Tarsal claws of hind tarsi of Dendrocellus species and Drypta species. 57) D. rugicollis (lectotype); 58) D. elegans (male, New Guinea); 59) D. schultzei (lectotype); 60) D. sinicus (holotype); 61) D. inexpectus (holotype); 62) D. javanus (male, Java Occid., paratype); 63) D. nigripennis (holotype); 64) D. geniculatus (male, Tibet); 65) D. australis (male, Congo); 66) D. queenslandicus (holotype); 67) D. confusus (male, Thailand); 68) D. nepalensis (male, Pedong, India); 69) D. coelestinus (syntype); 70) D. micropectinatus (male paratype, Congo); 71) Drypta longicollis Macleay 1825 (male, Thailand); 72) Drypta lineola virgata Chaudoir 1850 (male, Vietnam). Scale line 5 0.1 mm.

Figs. 91–108. Male genitalia of Dendrocellus species. 91) and 92) D. queenslandicus (holotype); 93) and 94) D. ternatensis (Batchian, Indonesia); 95) and 96) D. elegans (New Guinea); 97) and 98) D. unidentatus (male, Java); 99) and 100) D. inexpectus (holotype); 101) and 102) D. sinicus (holotype); 103) and 104) D. viridipennis (male, Congo); 105) and 106) D. micropectinatus (holotype); 107) and 108) D. australis (male, Congo). Scale lines 5 1.0 mm, scale line A for Figs. 91, 93, 95, 97, 99, 101, 103, 105, 107 (apical part, dorsal view); scale line B for Figs. 92, 94, 96, 98, 100, 102, 104, 106, 108 (left lateral view).