Passandra barsevskisi, Bukejs, 2019

Bukejs, Andris, 2019, A new species of Passandra Dalman (Coleoptera: Passandridae) from the Philippines and Borneo, Zootaxa 4701 (2), pp. 179-184 : 180-182

Passandra barsevskisi sp. nov.

( Figs 1–9 )

urn:lsid:zoobank.org:act:2B094490-84D6-400A-90EF-443F6F0379A0

Type material. Holotype: ♂ (specimen dissected; fore and middle legs are missing), “ PHILIPPINES, | Cordillera Admin. Reg., | N Luzon, Kalinga, | Pinukpuk , V 2016 ” (white printed label), “ DUBC ” (green printed label), “HO- LOTYPE | Passandra | barsevskisi sp. nov. | des. A. Bukejs, 2019” (red printed label) [ DUBC].

Paratypes: 1 ♀ (specimen dissected), “BORNEO, Sabah | Crocker Range | 26.iii. 2007, 700m | Steven Chew” (white printed label), “ BMNH {E} | 2009-6” (white printed label), “ PARATYPE | Passandra | barsevskisi sp. nov. | des. A. Bukejs, 2019” (red printed label) [ BMNH] ; 1 ♀ (specimen dissected), “BORNEO, Sabah | Mount. Trus Madi, | 8.v.2007 | Steven Chew” (white printed label), “ BMNH {E} | 2009-6” (white printed label), “ PARATYPE | Passandra | barsevskisi sp. nov. | des. A. Bukejs, 2019” (red printed label) [ BMNH] .

Description. Body length 11.3–14.0 mm (holotype 12.7 mm), maximum width 2.6–3.2 mm (holotype 2.9 mm); black with venter, legs and antennae dark brown; shiny; narrowly-elongate, slightly flattened, parallel-sided.

Head covered with moderately sparse micropunctation, vertex with fine punctures posteriorly. Clypeus bordered laterally and anteriorly by distinct carina; with oval impression in male (with more elongate impression in females). Compound eyes moderately large, slightly convex. Sublateral grooves deep and connected with transverse occipital groove. Median process well developed, slightly convex, with weak carina in anterior portion, rounded apically, reaching occipital groove. Admedian grooves deep, long, almost straight, slightly diverging anteriorly; open, gradually becoming obsolete near meeting with sublateral carina anteriorly. Occipital transverse groove deep and wide, slightly sinuate medially. Antennae robust in male (distinctly slender in females), moderately long, reaching elytral base, micropunctate; scape semispherical; pedicel slightly transverse, smallest; antennomeres 3–10 transverse to strongly transverse in male (slightly transverse to nearly as long as wide in females), with narrow groove ventrally and with few setae ventro-apically, antennomeres 4–10 swollen; antennomere 11 slightly elongate, rounded apically, asymmetrical, with setose area dorso-laterally.

Pronotum slightly elongate, about 1.1–1.2× as long as wide (in females less elongate), subparallel-sided, with maximum width in anterior one-fourth, gradually slightly narrowed anteriad and posteriad; anterior angle acute, slightly protruding, posterior angles distinct, nearly orthogonal; lateral sides with bead; covered with microreticulation and sparse micropunctation. Pronotal sublateral lines entire, slightly sinuate; widely separated anteriorly and almost finishing when meeting anterior edge. Pronotal disc slightly convex; with two deep, long and almost straight admedian grooves, extending nearly from base to middle of pronotum. Submarginal basal groove medially deeply and narrowly emarginate in male, notched in females. Prosternum sparsely covered with micropunctation, shiny; notosternal suture incomplete; prosternal process flat, parallel-sided in basal two-thirds and strongly expanded in apical one-third, with bisinuated apical margin.

Scutellar shield minute, elongate, oval.

Elytra elongate, about 2.6× as long as wide; each elytron with two complete lines (I and VI), line II (developed in slightly more than ½ of elytron length) and line V marked in basal one-fourth, interrupted (lines II and V less developed, slightly shorter in females). Intervals covered with microreticulation and sparse micropunctation. Mesoventrite with longitudinal wrinkles and microreticulation; mes- and metepimera, mes- and metanepisterna, metaventrite and abdomen with microreticulation and sparse micropunctation.

Abdominal ventrite 5 with deep semicircular groove.

Median lobe of aedeagus with triangular apical portion and rounded apex ( Figs 6–7 ); paramera as in Fig. 8 . Spermatheca as in Fig. 9 .

Differential diagnosis. Passandra barsevskisi sp. nov. can be distinguished from all known species of Passan- dra by the following combination of features: (1) head, pronotum and elytra black; (2) admedian grooves of head deep, long, almost straight, slightly diverging anteriorly; (3) median process of head well developed and reaching occipital groove; (4) antennomeres 3–10 with narrow groove ventrally, male antennae robust with antennomeres 4–10 swollen; (5) pronotal disc with two deep and long admedian grooves; (6) pronotal sublateral lines entire, widely separated anteriorly; (7) submarginal basal groove deeply and narrowly emarginate or notched; (8) each elytron with lines I and VI complete, lines II and V incomplete; and (9) median lobe of aedeagus with triangular apical portion and rounded apex.

In possessing pronotal admedian grooves, the new species is close to P. gemellipara (Newman, 1839) , P. lineicollis (Reitter, 1880) and P. sagena (Lefkovitch, 1963) (all from Africa) but differs: from P. gemellipara in admedian gooves of head open, admedian process rounded apically, pronotal sublateral lines entire, elytra with two complete lines (I and VI), shape of apical portion of median lobe, and setation of paramera; from P. lineicollis in admedian process rounded apically, head and pronotum with sparse micropunctation, pronotal admedian grooves straight, pronotal sublateral lines widely separated anteriorly, submarginal basal groove deeply and narrowly emar- ginate or notched, and elytra with two complete lines (I and VI); and from P. sagena in pronotal admedian grooves straight, pronotal sublateral lines entire, head and pronotum with sparse micropunctation, elytra with two complete lines (I and VI), shape of apical portion of median lobe, and setation of paramera.

Additionally, new species differs from P. doriae (Grouvelle, 1883) (known from New Guinea) in admedian grooves of head open, antennomeres 8 and 9 (in male) subequal in shape and size, pronotum with admedian grooves, shape of apical portion of aedeagus, and denser setation of paramera; and from P. heros (Fabricius, 1801) (widely distributed in Indo-Australian region) in pronotum with admedian grooves, elytral line II developed in slightly more than ½ of elytron length, shape of apical portion of aedeagus, and denser setation of paramera.

To accommodate P. barsevskisi sp. nov., couplet 8 of the key to Passandra in Burckhardt & Ślipiński (2003) should be replaced with the following:

8 Pronotum with longitudinal medio-basal groove [ Burckhardt & Ślipiński (2003): fig. 457] or admedian grooves ( Fig. 1 )...................................................................................................... 8A

- Pronotum without grooves. Genitalia as in Burckhardt & Ślipiński (2003): figs 493, 494. Indo-Australian............ heros

8A Pronotum with longitudinal medio-basal groove. Genitalia as in Burckhardt & Ślipiński (2003): figs 425, 446. New Guinea................................................................................................. doriae

- Pronotum with admedian grooves. Genitalia as in Figs 6–9 . Borneo, Philippines..................... barsevskisi sp. nov.

Derivatio nominis. Patronymic, this new species is named in honor of colleague Dr. Arvīds Barševskis (Daugavpils, Latvia), a well-known specialist of Cerambycidae and Carabidae (Coleoptera) .

Distribution. Borneo, Philippines.

Figures

FIGURES 1–2. Passandra barsevskisi sp. nov.: 1—habitus, dorsal view, holotype ♂; 2—habitus, dorsal view, paratype ♀. Scale bars represent 3.0 mm.

FIGURES 3–4. Passandra barsevskisi sp. nov.: 3—details of forebody, ventral view, holotype ♂; 4—details of forebody, ventral view, paratype ♀. Not reproduced to the same scale.

FIGURES 5–9. Passandra barsevskisi sp. nov.: 5—habitus, ventral view, paratype ♀; 6—median lobe of aedeagus, ventral view; 7—median lobe of aedeagus, dorsal view; 8—paramera; 9—spermatheca. Not reproduced to the same scale.