Acanthocephala macrotuberculata, Olivera & Dellapé & Melo, 2024

Olivera, Leonela, Dellapé, Pablo M. & Melo, María Cecilia, 2024, Description of eight new species of the genus Acanthocephala Laporte, 1833 from South America (Hemiptera, Coreidae, Acanthocephalinae), Zoosystema 46 (12), pp. 285-318 : 304-306

publication ID

https://doi.org/ 10.5252/zoosystema2024v46a12

publication LSID

lsid:zoobank.org:pub:98637037-ECEF-4030-81FA-4324650476CC

DOI

https://doi.org/10.5281/zenodo.11358441

persistent identifier

https://treatment.plazi.org/id/59E3D6AE-AEFC-4E07-A867-0C4BCE722CBC

taxon LSID

lsid:zoobank.org:act:59E3D6AE-AEFC-4E07-A867-0C4BCE722CBC

treatment provided by

Plazi

scientific name

Acanthocephala macrotuberculata
status

sp. nov.

Acanthocephala macrotuberculata n. sp.

( Figs 18-20 View FIG View FIG View FIG ; 30 View FIG )

urn:lsid:zoobank.org:act:59E3D6AE-AEFC-4E07-A867-0C4BCE722CBC

TYPE MATERIAL. — Holotype. Colombia • “ ♀ Tolima / Mnpo. Cunday/ vereda el edén/ 500 msn 13-03-[19]99/ B. enciso [ PUJ] // MPUJ-HEM-10000 [yellow label] //ME356 [yellow label]”.

TYPE LOCALITY. — Colombia, Tolima, Municipio Cunday, Vereda el Edén, 500 m.

ETYMOLOGY. — The name refers to the large tubercles of the pronotum of this species.

DISTRIBUTION. — Only known from Colombia ( Fig. 30 View FIG ).

DESCRIPTION OF HOLOTYPE ( Fig. 18A, B View FIG )

General

General color dark brown to black.Total length 29.37, length of head 2.91.

Head ( Fig. 18C, D View FIG )

With sparse semierect yellowish setae; head dark brown.Dorsal margin of tylus straight at base strongly projected upwards at apex, overpassing the dorsal margin of head. Post-tylus depression deep, three times shorter than interocellar space. Length of tylus 0.29, length of post-tylus depression 0.29. Eyes globose and protuberant, small in relation to the size of the head. Width of eye 0.86, ocular distance 3.10, synthlipsis 1.49, ocellar distance 1.22, interocellar space 0.86. Buccula large, semicircular, and elongate, reaching the anterior third of eye. Antenna shorter than body length. Scape, pedicel, and basiflagellomere reddish brown, with abundant semierect long dark stiff setae; distiflagellomere orange with abundant decumbent yellowish setae and semierect sparse setae. Length of antennal articles: scape 6.25, pedicel 5.37, basiflagellomere 4.37, distiflagellomere 9.25; width of antennal articles: scape 0.89, pedicel 0.70, basiflagellomere 0.70, distiflagellomere 0.70. Labial segment I brown, segments II-IV paler, apex segment IV black; extending to mesocoxae; segment III shortest. Length of labial segments: I 2.68, II 2.44, III 1.55, IV 2.02.

Thorax

Pronotum ( Fig. 19A View FIG ): with sparse long semierect yellowish setae on anterior lobe, and scattered short decumbent yellowish setae all over the surface; anterior lobe with two well-developed rounded tubercles behind margin of collar; calli with two rounded tubercles between them; posterior lobe punctate with abundant rounded smooth and shiny tubercles irregularly arranged; anterolateral margins straight, with well-developed conical tubercles; humeral angles tuberculated, expanded and slightly elevated, widely acute; humeral distance 1.4 times larger than width of abdomen; posterolateral margins tuberculated, triangular processes short. Width of humeral angles 14.25. Scutellum: longer than wide, punctate with transversal rugosities, with short decumbent yellowish setae, and longer and darker erect setae all over the surface; base elevated with two rounded well-developed tubercles; apex incrassate and yellowish. Length of scutellum 3.99, width 3.76. Thoracic pleurae: dark brown, with long decumbent yellowish setae; propleura with well-developed rounded tubercles more abundant under humeral angles; metathoracic gland auricle and evaporatory area orange with rugosities ( Fig. 19B View FIG ), anterior lobe of auricle oval and elongate, posterior lobe elongate; supracoxal area of metapleura not incrassate posteriorly. Thoracic sterna: dark brown, with abundant long erect and decumbent yellowish setae; mesosternal anterior projection concolorous.

Hemelytra. Clavus and corium entirely punctate, with sparse short decumbent yellowish setae, basal region of costal margin armed with small setiferous tubercles; membrane with sparse decumbent setae, veins concolorous. Length of hemelytra 23.75.

Legs. Dark brown, except pro- and mesotibiae with the basal region brown becoming yellowish distally, and tarsi paler. Proand mesotrochanters unarmed, metatrochanter with one small ventral setiferous tubercle. Pro- and metafemora with short decumbent yellowish setae, and longer and darker semierect setae all over their surface. Pro- and mesofemora with two ventral rows of spines ending in a small apical spine, posterior row restricted to apical half. Anterior, posterior, and dorsal margins of profemur unarmed. Anterior margin of mesofemur unarmed, posterior margin with small tubercles, and dorsal margin with one row of conical setiferous tubercles. Metafemur 2.6 times wider than profemur ( Fig. 19C View FIG ); dorsal margin with two rows of conical setiferous tubercles; anterior and posterior margins with a row of small setiferous tubercles; ventral margin with two rows of spines; anterior row with narrow conical spines compressed at base, becoming larger to the apex and ending on a bidentate apical projection; posterior row with small tubercles ending in an apical bidentate projection. Pro- and mesotibiae unarmed. Metatibia ( Fig. 19D View FIG ) black, apex paler; dorsal expansion developed, enlarging basally, with a notch from where it narrows parallel to the tibia until the apex, ending in a straight angle; distal margin with small sparse setiferous tubercles; ventral margin expanded, barely evident on basal third, margin bordered by two rows of irregular setiferous tubercles becoming larger to the apex and cross at distal third forming only one row. Width of profemur 0.86; length of metafemur 14.12, width 2.31; length of metatibia 14.37, width 4.25.

Abdomen

Length of abdomen 16.87, width 9.75. Terga black, scars of scent gland openings yellowish. Sterna dark brown, with abundant decumbent yellowish setae and semierect setae all over the surface. Lateral margin of sternites III and IV not expanded. Area of insertion of trichobothria yellowish, surrounding area brown. Lateral areas with rugosities around spiracles. Spiracles black, surrounding area concolorous with rest of abdomen.

Female genitalia ( Fig. 20 View FIG ). Sternite VII ( Fig. 20A View FIG ): Fisura long, median lobes well-developed, quadrangular, and overlapping with each other; plica straight, close to the anterior margin of sternite, as long as the maximum width of first gonocoxae; posterolateral margins straight not projecting beyond first gonocoxae. Paratergite VIII extending to apical third of first gonocoxae ( Fig. 20A View FIG ). Dorsal apodeme of first gonocoxae wide, apex rounded ( Fig. 20B View FIG ). Second gonocoxae narrow, narrowing to the apex, with a well-developed lateral apodeme at the middle third ( Fig. 20C View FIG ). Second gonapophysis shorter than second gonocoxa. Spermatheca ( Fig. 20D View FIG ): Seminal receptacle apically globose and oval; flexible zone long; distal duct longer than flexible zone; dilation of the spermathecal duct elongate.

MALE

Unknown.

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Hemiptera

Family

Coreidae

Genus

Acanthocephala

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