Drosophila (Sophophora) maya Heed and O’Grady, 2000

Grimaldi, David A., 2024, The Drosophila (Sophophora) obscura species group in the Americas (Diptera: Drosophilidae): review, revisions, and three new species, American Museum Novitates 2024 (4015), pp. 1-44 : 35

Drosophila (Sophophora) maya Heed and O’Grady

Figures 2B , 3B , 8C , 10C , 16B

Drosophila (Sophophora) maya Heed and O’Grady, 2000: 98 .

DIAGNOSIS: Acrostichals in 6 rows; carina narrow above, broadened at base; sex comb with ta1 having 3–5 teeth and ta2 having 2–4; ta1 1.5× length of ta2; surstylus with row of 7–9 prensisetae, inner “hook” short and blunt; posterior margin of hypandrium with small pair of raised, sclerotized lobes (height equal to width); anterior margin of hypandrium narrowed, flat. Oviscapt with small ovisensilla pegs; spermatheca unique in group: dome shaped, no apical indentation, basal sleeve very short (~1/4 length of capsule).

TYPE: Holotype, ♂ (point-mounted body): “ Cerro Monte Cristo , 7000′ [ft] 44.12 / Rep. de EL SALVADOR / Feb. 5, 1954 WB Heed / Genitalia on slide 44.12A / Holotype Drosophila maya Heed & O’Grady. In AMNH. The holotype had been dissected by Heed and genitalia slide mounted (Heed no. 44.12A). Slide: 44.12A, Monte Cristo, El Salvador, 7000′, pseudolike, W.B. Heed, 1954, from pinned fly / sex comb = 4/3, c[lasper] 8 teeth, p(enis) index = 10.2 / TYPE ♂ (all labels handwritten by Heed), CUIC 88673 .

SPECIMENS EXAMINED: Three paratypes (each with blue PARATYPE label): 1♂ (pinned body), Rep. de Honduras / Monte Vyuca, 10 km NW Zamorano, 5000′ 49.22 / Mar. 1954 W.B. Heed. In AMNH. 1♀, 1♂ (pinned bodies): Rep. de EL SALVADOR / Cerro Monte Cristo 7000′ 44.12 / Feb. 6, 1954 WB Heed / Paratype Drosophila maya / ♀ dissection ASG19; ♂ ibid., with also labels handwritten by Heed “genitalia 44.12B, sex combs 4/3, 3/3” / ASG41. In AMNH (also slide mounted dissections: in CUIC, no number). GUATEMALA: Zacapa, 10 km N San Lorenzo, 2200 m., 8-10/XI/86, M. Sharkey, FIT [flight intercept trap]. In AMNH; dissected by D.G. (no. ASG02) .

DISTRIBUTION: Reported by Heed and O’Grady (2000) from El Salvador and Honduras (above), with the new record reported here from Guatemala.

COMMENTS: Slide-mounted dissections of the male genitalia of the type (44.12A) and a paratype (44.12B), in the Heed material housed in the CUIC, have the hypandrium distorted by the weight of the coverslip. Regardless , the distinctive pair of small, paramedian lobes on the posterior margin of hypandrium, and the flat anterior margin are readily apparent. The proportions of the aedeagus and periphallic appendages also fully agree with the specimen from Guatemala. The slide mountant used by Heed, probably Hoyer’s, has darkened to a medium brown .

Figures

FIG. 2. Heads and thoraces (lateral view) of representative New World species of the obscura group (A–D), and a male midleg of D. cuauhtemoci (E). A. D. chibcha holotype, n. sp. (ASG 05); B. D. maya holotype. C. D. narragansett paralectotype male. D. D. seminole holotype. E. D. cuauhtemoci, male midleg (lateral view), paratype.

FIG. 3. Frontal view of heads of representative species in the D. pseudoobscura subgroup. A. D. lowei, male paratype (A19.2); B. D. maya, male holotype (44.12A). C. D. pseudoobscura, male. D. cuauhtemoci, male paratype (face and antennae only) (ASG 39).

FIG. 8. Oviscapts and spermathecae (lateral views) of species in the pseudoobscura subgroup, with a detail for D. persimilis. A. D. cuauhtemoci (ASG 39); B. D. lowei (ASG 26); C. D. maya (ASG 19); D. D. persimilis (ASG 37); E. D. pseudoobscura (ASG 34); F. D. zapoteca (ASG 21).

FIG. 10. Protarsal male sex combs of species in the D. pseudoobscura subgroup. A. D. cuauhtemoci; B. D. lowei (ASG 40); C. D. maya (ASG 41); D. D. persimilis (ASG 36); E. D. pseudoobscura (ASG 35); F. D. zapoteca (ASG 01). All to the same scale.

FIG. 16. Hypandrium, aedeagus and other appendages of representative species of the pseudoobscura subgroup. A. D. cuauhtemoci (ASG 38); B. D. maya (ASG 02: Guatemala), with details of pregonite lobes; C. D. persimilis (ASG 36); D. D. zapoteca, n. sp. (ASG 20: holotype)