Cryptophasa kwerbaensis Sutrisno & Suwito, 2015

Sutrisno, Hari & Suwito, Awit, 2015, Discovery of Cryptophasa Lewin, 1805 (Lepidoptera: Xyloryctidae) from Indonesia with the descriptions of three new species, Zootaxa 3994 (1), pp. 122-132 : 127-129

Cryptophasa kwerbaensis Sutrisno & Suwito, 2015 sp. nov.

( Figs. 5–6 )

Diagnosis. The male adult of C. kwerbaensis sp. nov. is easily recognized by the creamy ground color of the basal half of the forewing, a black spot on the discal cell and prominent black spots near the end of the costal margin and termen (tips of Sc, R1, R2, R3, CuA1, CuA2, CuP, 1A+2A), and its hyaline hindwing. Another characteristic of the species is the orange second abdominal segment. In the male genitalia, a pair of cornuti at the tip of its aedeagus is also diagnostic for this species.

Description. Male ( Fig. 5 ): Wing length 35 mm. Head white. Labial palpus slender, almost 3 times the vertical diameter of eye, creamy white, except lateral part of half second segment black, second segment four times longer than first segment, last segment pointed and directed backwards. Antenna fasciculate-ciliated, dorsal surface covered with longitudinal rows of brown scales along entire length. Thorax white-creamy. Fore leg black, mid and hind legs covered with white scales, tarsi covered with white and black scales. Forewing oblong, apex obtuse; wing color with creamy on basal half, distal half hyaline; hind margin slightly oblique, rounded; tips of Sc, R1, R2, R3, CuA1, CuA2, CuP, 1A+2A with black spots, discal cell with a prominent black spot; cilia white. Hindwing hyaline with creamy veins; cilia white. Abdomen slender with first segment white, second segment orange, third to seventh segments ochreous white, last segment black, white tinged.

Female: unknown

Male genitalia ( Figs. 6 a, b ): Uncus deeply divided dorsally into two lobes, divided into two apical processes, straight, strongly sclerotised at apex, apex forms very short finger-like structure, medially with scattered setae. Gnathos fused laterally to uncus, two arms joined at apex, Tegumen broad, gently arched, margins sclerotised, articulated with vinculum. Vinculum U-shaped, narrow at base, sclerotised, arms sinuate towards distal end. Saccus gently arched at base. Juxta long and prominent, distally with lateral sclerotised processes. Valva gradually tapered, with scattered setae, denser toward the base. Costa of valva slightly sinuate, apex rather sharp. Lower margin of supravalva gently curved, sinuate, more rounded towards base. Sacculus basally narrow, gradually broadening, scattered fine setae, apex curved inwardly. Lower saccular margin more or less straight, slightly curved towards apical end. Claspers large, strongly sclerotised, extended beyond apex of sacculus; lower margin folded inwards, terminated in an inwardly curved process. Juxta stout, well sclerotised, divided into two process; broad at its distal end. Aedeagus medially slightly curved, sinuate towards distal end; apically with pair of cornuti.

Holotype: 1 ♂; Indonesia, Membramo Raya, Kwerba, Mt. Foja. S.02° 34ʹ 22ʺ E. 138° 43ʹ 02ʺ. 01.XI.2008. Hari Sutrisno, Genitalia slide MZB. Lepi. 182.

Etymology. The specific name kwerbaensis is derived from the type locality, Kwerba.

Distribution and biology. Information on the distribution and the biology of C. kwerbaensis sp. nov. is limited to the holotype, which was captured using a light trap during our field trip in Kwerba Village, Membramo Raya, Papua.

Remarks. This species was described based on a single male specimen. Unfortunately, the specimen of this type was collected in not a good condition (the right antenna is broken).

Figures

FIGURE 5. Cryptophasa kwerbaensis sp. nov. ♂

FIGURE 6 a, b. Male genitalia of Cryptophasa kwerbaensis sp. nov.