Anthrenus (Solskinus) katmandui Kadej, Háva, and Kitano, 2016

Kadej, Marcin, Háva, Jiří & Kitano, Takanobu, 2016, Descriptions Of Three New Species Of Anthrenus Geoffroy, 1762 (Coleoptera: Dermestidae), With Keys To The Species Of Anthrenus From Nepal And Taiwan, The Coleopterists Bulletin 70 (4), pp. 789-796 : 794-795

Anthrenus (Solskinus) katmandui Kadej, Háva, and Kitano , new species

( Figs. 17–24 )

Type Locality. Nepal.

Type Material. Holotype (♂): Mt. Phulchoki , 1800–2000 m, Katmandu Valley, C. Nepal, 28- IV-1983 T. Shimomura leg. ( EUMJ) [left antenna, genitalia, pygidium, abdominal segments VII–X, and left hind leg mounted in glycerin microvial and placed under specimen; dorsal patterns (mainly on left elytron) and ventral patterns (mainly on mesosternum) somewhat incomplete].

Paratypes. 3 specimens (2♂, 1♀): same data as holotype (1♂, 1♀ EUMJ, 1♂ DIBEC) .

Etymology. The epithet “ katmandui ” is derived from the place where the species was discovered – Katmandu.

Diagnosis. This new species closely resembles A. cechovskyi , Anthrenus (Helocerus) fuscus Olivier, 1789 , A. museorum , A. nepalensis , A. (Florilinus) zhantievi Háva and Kadej, 2006 ( India) , and A. (Nathrenus) schawalleri Háva and Kadej, 2006 ( China) . However, it can easily be distinguished from these species by the following unique combination of characteristics: 1) Antenna of A. katmandui is 7-segmented, whereas the antennae of A. cechovskyi is 5-segmented (in females, 6-segmented), the antennae of A. nepalensis , A. museorum , and A. zhantievi are 8-segmented,

21) Genitalia, ventral view; 22) Penis (median lobe), lateral view; 23) Abdominal segment IX; 24) Abdominal segment X.

and those of A. schawalleri are 11-segmented; 2) Abdominal ventrites of A. katmandui have dark brown scales especially prominent along lateral margins of ventrites II–V and these dark brown scales are surrounded by light brown scales; in A. cechovskyi , ventrites I–V have dark brown and light brown scales covering the lateral margins; in A. nepalensis , the dark brown scales cover only the posterior margins of ventrites I–V; in A. museorum , the dark brown scales cover the posterior margins of ventrites II–V and the middle section of ventrite V; in A. zhantievi , ventrites I–V are covered with gray scales only; in A. schawalleri , ventrites I–V are covered with yellowish scales only; in A. fuscus , abdominal ventrites I–V are covered with whitish scales only. Anthrenus katmandui can be distinguished from other known Nepali species of Anthrenus by the characteristics given in the key below.

Description. Holotype, male. Body convex, slightly rounded laterally; nearly 2.0X as long as wide; BL = 2.45 mm, PL = 0.55 mm, PW = 1.05 mm, BW = 1.3 mm. Head visible from above ( Fig. 17 ); eyes large, convex, oval (without internal, medial deep emargination). Median ocellus present. Frons and clypeus covered with whitish scales. Antenna with 7 antennomeres; antennal club with 2 antennomeres ( Fig. 19 ); all antennomeres brown (basal segment and segments of antennal club slightly darker). Antennal club shorter than flagellum; relative length of terminal antennomere to length of penultimate and antepenultimate antennomeres combined nearly 8:1. Antennal fossa conforming to shape of antennal club. Ratio of length of antennal fossa to length of lateral margin of pronotum 1:1.5. Dorsal and ventral surfaces dark brown, sparsely punctate, covered by triangular scales ( Figs. 17–18 ). Pronotum covered by mixed dark and light brown and whitish scales ( Fig. 17 ); latero-posterior declivity with white scales along margin and toward middle; disc mainly with dark brown scales and light brown scales on central part [small patch] and near lateral margins of pronotum. Lateral margin of pronotum dilated above antennal fossa and visible from above. Scutellum small and poorly marked ( Fig. 17 ). Elytra covered by white and light to dark brown scales; dark brown scales forming a backdrop for transverse elytral bands. Mixed whitish and light brown scales forming 3 transverse bands, each with different widths and shapes. First basal band along anterior margin of elytra extending from lateral margin through humeri to scutellum. Second submedial band at slightly below ½ length of elytron. Third subapical band placed close to apex of elytra, rotated in direction of apices. Scales of ventral surfaces whitish, dark brown and light brown. First abdominal ventrite without postcoxal lines, sulcus without scales. Abdominal ventrites I–V covered with whitish, light brown, and dark brown scales; dark brown scales especially prominent along lateral margins of ventrites II–V, surrounded by light brown scales ( Fig. 18 ) [dark color across middle of ventrites I–V probably caused by the glue]. Legs brown (tibia and tarsi slightly lighter than trochanters and femora). Only trochanters and femora covered on dorsal surface with whitish scales. Protibia with small tibial spines. Tarsus with 2 curved claws. Phallus as in Fig. 21 . Parameres U-shaped, covered with short setae (mainly on lateral margins and in central area). Ratio of length to width 1.2:1. Distal parts of parameres straight (not curved inward). Penis in frontal view straight ( Fig. 21 ); in lateral view, distinctly curved in basal portion above apodemes and below apex ( Fig. 22 ). Pygidium brown, transverse basally, carina absent ( Fig. 20 ). Ninth abdominal segment spatula-like ( Fig. 23 ); apex flat; setae present on dorsal and lateral margins, but only anteriorly.

Sexual Dimorphism. In males, ratio of length of terminal antennomere to length of penultimate antennomere nearly 8:1, in females 1.75:1. In females, antennal fossa does not conform to shape of antennal club (antenna does not fill the entire surface of antennal fossa).

Variability. BL = 2.2–2.45 mm, PL = 0.45– 0.56 mm, PW = 1.00– 1.05 mm, BW = 1.2–1.3 mm.

Distribution. Nepal.

Figures

Figs. 17–24. Anthrenus katmandui, holotype. 17) Dorsal habitus; 18) Ventral habitus; 19) Left antenna; 20) Pygidium;