Amphineurus (Rhamphoneurus) glabristylatus Alexander, 1929a

Santos, Daubian, Santos, Rodrigo dos Reis & Ribeiro, Guilherme Cunha, 2022, Systematics of Amphineurus (Rhamphoneurus Alexander) (Diptera: Tipuloidea: Limoniidae), Arthropod Systematics & amp; Phylogeny 80, pp. 439-494 : 439

publication ID

https://dx.doi.org/10.3897/asp.80.e83035

publication LSID

lsid:zoobank.org:pub:62FFB94C-EBF4-4163-9F22-881435EFC37C

persistent identifier

https://treatment.plazi.org/id/95E9BC04-66DF-5894-8469-5C2E8617C16F

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scientific name

Amphineurus (Rhamphoneurus) glabristylatus Alexander, 1929a
status

 

3.3.13. Amphineurus (Rhamphoneurus) glabristylatus Alexander, 1929a

Amphineurus (Rhamphoneurus) glabristylatus Alexander, 1929a: 188 (description, fig. 224: male terminalia).

Material examined.

Paratypes: 1 ♂, Chile, Chiloé Is., Mechuque Is. [42°18′S 73°16′W], 23-XII-1926, F. & M. Edwards (USNM). 1 ♂, Chile, Peulla [41°5′S 72°1′W], 12/ 13-XII-1926, F. & M. Edwards (USNM); 1 ♂, Chile, Chiloé Is., Mechuque Is. [42°18′S 73°16′W], 23/ 26-XII-1926, F. & M. Edwards (USNM)*. - Additional material: ARGENTINA. 1 ♀, Bariloche , Rio Negro [41°7′S 71°24′W], XI-1926, R. & E. Shannon (USNM) GoogleMaps . CHILE. 1 ♂, 1 ♀ and 4 [sex unknown], Arauco, Nahuelbuta, Butamalal [37°49′S 73°14′W], 1100-1400 m, 23/ 31-I-1954, Peña (USNM) GoogleMaps ; 2 ♀ and 1 ♂, Arauco, Nahuelbuta [37°46′S 72°59′W], 2-II-1953, Peña (USNM) GoogleMaps ; 1 ♀ and 1 [sex unknown], Arauco, Nahuelbuta [37°46′S 72°59′W], 12/ 20-II-1958, Peña (USNM); 1 [sex unknown], Chiloe Is. , Chepu [42°2′S 74°1′W], 4/ 6-IV-1968, Peña (USNM); 1 [sex unknown], Arauco, Nahuelbuta , Butamalal [37°49′S 73°14′W], 1400 m, 23/ 31-I-1954, Peña (USNM) GoogleMaps ; 1 ♀ and 1 [sex unknown], Chiloé Is., Aulen [42°2′S 74°1′W], 8-II-1952, L.P. Guzman (USNM); 1 [sex unknown], Arauco, Nahuelbuta [37°46′S 72°59′W], 21/ 25-II-1958, Peña (USNM); 1 [sex unknown], Malleco , Rio Blanco [38°23′S 71°48′W], 27-II-1951, Peña (USNM); 1 [sex unknown], Arauco, Nahuelbuta [37°46′S 72°59′W], 120-1100m., 9-I-1954, Peña (USNM) GoogleMaps ; 1 ♀, Chiloé Is., Aucar [42°9′S 73°30′W], 15-I-1952, L. P. Guzman (USNM); 1 [sex unknown], Osorno, Pucotrihue [40°32′S 73°42′W], 10/ 12-IV-1948, Peña (USNM) GoogleMaps ; 2 ♂ and 1 [sex unknown], Arauco, Nahuelbuta, Pichinahuel [37°48′S 73°02′W], 1400-1600 m, 21/ 25-II-1953, Peña (USNM) GoogleMaps *; 2 ♂, Arauco, Nahuelbuta, Butamalal [37°49′S 73°14′W], 1100-1400 m, 23/ 31-I-1954, Peña (USNM) GoogleMaps *; 1 ♂, Nahuelbuta, Caramavida [37°40′S 73°20′W], 120-1100 m, 9-I-1954, Peña (USNM) (det. as A. (R.) nothofagetorum by Alexander) GoogleMaps *; 1 ♂, Arauco, Nahuelbuta, Butamalal [37°49′S 73°14′W], 1400 m, 23/ 31-I-1954, Peña (USNM) GoogleMaps *; 1 ♂, Arauco, Nahuelbuta, Pichinahuel [37°48′S 73°02′W], 14-1600 m, 12/ 20-II-1953, Peña (USNM) GoogleMaps *; 1 ♂, Chiloé Is., Aulen [42°2′S 74°1′W], 4-II-1952, Peña (USNM) GoogleMaps *; 1 ♂, Osorno, Pucotrihue [40°32′S 73°42′W], 10/ 12-IV-1968, Peña (USNM) GoogleMaps *; 1 ♂, Malleco, Rio Blanco [38°23′S 71°48′W], 1050 m, 27-III-1951, Peña (USNM) GoogleMaps *.

Diagnosis.

This species is distinguished by the sinuous anal vein and straight m-cu. Furthermore, this species has characteristic male terminalia with a folded medial branch of the clasper of gonostylus without setae, an unpigmented male tergite IX, sinuous sheath of aedeagus, and the right mesal lobe is longer than the left mesal lobe, with a cylindrical apical tip.

Redescription.

Wing length 7.07 mm, width 2.22 mm. - Coloration: General coloration brown. Rostrum and palpus dark brown. First segments of antenna light yellow, remainding segments dark yellow. Head dark brown. Eyes gray. Thorax brown, pleura yellowish brown. Three reddish-brown stripes on scutum. Halter dark yellow with knob ochreous. Coxae yellowish-brown and legs brown. Abdomen brown. - Head (ventral view Fig. 18A View Figure 18 , dorsal view Fig. 18B View Figure 18 ): Rostrum bifurcated with long appendices; first palpal segment shorter than terminal segment; scape as broad as pedicel, terminal flagellomere as long as penultimate; antenna with several long setae. - Thorax (lateral view Fig. 18E View Figure 18 , dorsal view Fig. 18F View Figure 18 ). Anatergite taller than katatergite; prescutum with long setae (Fig. 29B View Figure 29 ); mediotergite with notch on posterior margin (Fig. 18F View Figure 18 ). Halter with dilated knob. Wing (Fig. 18D View Figure 18 ) with several markings, including subtle marking on A1; slightly darkened areas along medial veins; markings on Rs, R2+3+4 and m-cu; strong markings on R2 and near end of R1; veins near fork of bM (Fig. 18C View Figure 18 ) faded; M1+2 longer than basal deflection of M1, R2+3 longer than R2+3+4. - Female terminalia (Fig. 18H View Figure 18 ): Female tergite IX shorter, narrower than tergite X. Hypogynial valves slender, longer than cercus. Cercus strongly curved dorsad. - Male terminalia (Fig. 18G View Figure 18 ): Male tergite IX unpigmented, with shallow median U-shaped notch, with additional shallow sublateral notch on either side creating sinuous appearance. Ventral branch of gonocoxite wide. Dorsal branch of gonocoxite long, almost as long as ventral branch. Lobe of gonostylus with rounded lobule; lobule as long as wide, shorter than half-length of lobe of gonostylus, wider than stem. Clasper of gonostylus with differently shaped branches: lateral branch straight; medial branch curved, club-shaped. Mesal lobes of gonocoxite asymmetrical, both elongated and slightly rounded at posterior margin; left mesal lobe wider than right. Sheath of aedeagus straight, dark almost entire length.

Remarks.

We could not examine the holotype, but the paratypes were examined. This species resembles A. (R.) chiloeanus Alexander but differs mainly in the attachment of m-cu, length of female cercus, shape of male tergite IX, sheath of aedeagus and mesal lobe.

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Diptera

Family

Limoniidae

Genus

Amphineurus

Loc

Amphineurus (Rhamphoneurus) glabristylatus Alexander, 1929a

Santos, Daubian, Santos, Rodrigo dos Reis & Ribeiro, Guilherme Cunha 2022
2022
Loc

Amphineurus (Rhamphoneurus) glabristylatus

Alexander 1929
1929