Canarischema fuerteventura Karsholt, 2017

Landry, Jean-François, Nazari, Vazrick, Bidzilya, Oleksiy, Huemer, Peter & Karsholt, Ole, 2017, Review of the genus Agonochaetia Povolný (Lepidoptera, Gelechiidae), and description of a new genus and species from the Canary Islands, Zootaxa 4300 (4), pp. 451-485 : 473-475

Canarischema fuerteventura Karsholt , sp. nov.

( Figs. 13–14, 16 , 20, 22 , 27–28 , 36 , 42 )

urn:lsid:zoobank.org:act:B9B264B5-CD83-4A1F-9A61-23535FDAD640

Material examined. Holotype ♂, Spain, “Kanar. Inselen Fuerteventura Bco. [Barranco de] Esquinzo, 15.12.2006 – 14.01.2007, leg. R. Paas ”, “ Gen. praeparat N o 6319 ♂ H. Hendriksen ” ( ZMUC).

Paratypes. 3 ♂, same data as holotype ; 1 ♂, ditto but 3-16.x.2000 ; 2 ♂, 25.ix. – 19.x.2002; genitalia slide Bidzilya 139/15; 3 ♂, 1 ♀, ditto but 18 – 24.xii.2003, genitalia slide Bidzilya 138/15 ; 1 ♂, 1 ♀, ditto but 30.ix. – 6.x.2004 ; 1 ♂, 1 ♀, ditto but 8 – 24.x.2004 ; 2 ♂, ditto but 15 – 31.x.2005 ; 1 ♀ ditto but 15.x.–8.xi.2008 ; 1♂, 20.ii. – 15.iii.2011 (AW, CNC, TLMF, WS, ZMKU, ZMUC).

DNA Barcode BIN. BOLD:ACZ6649 (n=2).

Description ( Figs. 13–14 ). Adult. Male. Wingspan 9–12 mm. Labial palpus slender; segment 2 only slightly broader than segment 3; both segments of about same length, white, each with a broad black band most distinct at outer surface. Scape of antenna white mottled with black; flagellum thickened, yellow. Forewing white mottled with yellow-brown and black-tipped scales; an oblique black fascia from 1/3 of costa to 2/5 at dorsum running through a patch of raised black scales in fold; a transverse black fascia at 3/4 with a distinct patch of raised black scales in middle; both patches of raised black scales surrounded by yellow brown; indistinct costal and tornal spots connected by weak oblique fascia; apical area with many dark scales and some yellow brown in middle; fringes white with black fringe line. Hindwing light grey with white-grey fringes. Female. Flagellum of antenna slender, ringed blackish brown and white. Otherwise similar to male.

Male abdomen ( Fig. 20, 22 ). Tergum VIII linguiform-quadrate, anterior margin invaginated, broadly Ushaped, thickened. Sternum VIII distally tapered, conically pointed.

Male genitalia ( Figs. 27–28 , 36 ). See description of genus.

Female genitalia ( Fig. 42 ). See description of genus.

Variation. The type series shows only slight variation, apart from being more or less worn.

Diagnosis. C fuerteventura is characterized by the slender segment 2 of the labial palpus, the thickened flagellum of the male antenna, and by the patches of black scales surrounded by yellow brown in the forewing. In male genitalia, the glandiductors have a wide anterior opening as do the internal ducts.

Etymology. C. fuerteventura is named after its place of occurrence: the island of Fuerteventura , which is situated in the Atlantic Ocean about 100 km west of Morocco. It is considered the oldest of the Canary Islands, having not been submerged for about 20 million years. The species name is a noun in apposition.

Biology. Early stages and host-plant unknown. The type series was collected at light during the winter months from the end of September to March in mountainous surroundings at low elevation.

Distribution ( Fig. 43 ). Only known from the island of Fuerteventura in the Canary Islands ( Spain). Remarks. Patches of raised scales in the forewings are rare in Gnorimoschemini , but are present in the somewhat similar, but smaller species of Microlechia Turati. Canarischema furteventura may also be mistaken for species of Ochrodia Povolný , e.g., O. subdiminutella (Stainton) , which are common (and often abundant) in dryer parts of the Canary Islands and adjacent North Africa, but Ochrodia do not have raised scales. The genitalia of both of these genera differ markedly from those of C. furteventura .

Figures

FIGURES 13 – 16. Adults and wing venation. 13, Canarischema fuerteventura ♂ (HT); 14, idem. ♀ (PT); 15, Agonochaetia intermedia ♂ (slide JFL 1754); 16, Canarischema fuerteventura ♂ (slide MIC 7845). Scale bars: figs 13 – 14 = 2 mm; figs 15 – 16 = 500 µm.

FIGURES 17 – 22. Abdominal segments; 17 – 20, segments 1 – 2; 21 – 22, segment 8. 17, Gnorimoschema septentrionella Fyles (slide MIC 7717); 18, Symmetrischema costaricanum Povolný (slide MIC 7711); 19, Agonochaetia conspersa (slide MIC 6094); 20, Canarischema fuerteventura (slide JFL 1755); 21, Agonochaetia conspersa (slide MIC 6094); 22, Canarischema fuerteventura (slide JFL 1755). Scale bars = 500 µm. Red arrows indicate the marginosclerite of T 1.

FIGURES 25 – 28. Intact male genitalia, ventral and lateral aspects. 25 – 26, Agonochaetia conspersa (dissection USNM 142571); 27 – 28, Canarischema fuerteventura (dissection MIC 7845)

FIGURES 33 – 36. Male genitalia of Agonochaetia species and Canarischema fuerteventura. 33, A. shawinigan ♂ (HT) (slide MIC 4240); 34, A. terrestrella ♂ (slide 14978 NHMW); 35, A. tuvella ♂ (slide 66 / 03 O. Bidzilya); 36, Canarischema fuerteventura ♂ (HT) (slide 6319 H. Hendriksen).

FIGURES 40 – 42. Female genitalia of Agonochaetia species and Canarischema fuertevenura. 40 – 41, A. terrestrella ♀♀ (slides 16367 BMNH, GU 06 / 1254 P. H. BNMC); 42, Canarischema fuerteventura ♀ (PT) (slide 138 / 15 O. Bidzilya).

FIGURES 43 - 44. 43, Map of type localities (red stars) and distribution (red dots) of Agonochaetia and Canarischema (yellow star). 44, Bayesian inference of relationships between selected Gnorimoschemini genera based on COI barcode data. Values above nodes are posterior probabilities; those below nodes are bootstrap values from the Parsimony analysis (values from the Maximum Likelihood analysis were very similar).