Ceratophya notata Wiedemann, 1824

Reemer, Menno, 2013, Taxonomic exploration of Neotropical Microdontinae (Diptera: Syrphidae) mimicking stingless bees, Zootaxa 3697 (1), pp. 1-88 : 19-20

Ceratophya notata Wiedemann, 1824

Figs 36–41 , 55 .

Ceratophya notata Wiedemann, 1824: 14 .

Studied type specimens. HOLOTYPE. Male. BRAZIL. Label 1: " Brasilia, coll. Winthem"; label 2: " notata , det. Wiedem."; label 3: " notata Wied. Brasilia "; label 4 (yellow): " Lectotype Ceratophya notata Wied. Desig. Thompson 1977 ". Coll. NMW.

Additionally studied material. SURINAM: 1 female, Zanderij, 18-21.VII.1964, leg. D.C. Geijskes, coll. RMNH.

Adult male. Body size: 7 mm.

Head. Face parallel-sided, occupying 1/3 of head width in frontal view; laterally depressed; pale yellow, with brown median vitta from antennal fossa to oral margin, where it is at its narrowest; entirely short yellow pilose. Face in profile straight, produced downward at anterior oral margin. Gena brown. Oral cavity with lateral margins not produced. Frons blackish brown, short white pilose; vertex blackish, short white pilose. Occiput blackish brown. Eye bare. Antennal fossa about as wide as high. Antenna with scape yellow, gradually getting brown in apical 1/3, pedicel and scape brown; antennal ratio approximately 6:1:9. Basoflagellomere curled upward in apical 1/3. Arista slender, a little longer than half the length of the basoflagellomere.

Thorax. Scutum blackish brown; short black pilose, except lateral fasciae of white pile along transverse suture and posteriorly between postalar calli. Postpronotum yellow, short yellow pilose. Postalar callus pale brown, short black pilose. Scutellum yellow, short yellow pilose; slightly sulcate apicomedially; without calcars. Anterior and posterior part of anepisternum not differentiated; short yellow pilose except on ventral 1/3. Anepimeron entirely white pilose. Katepisternum white pilose. Katatergum and anatergum microtrichose. Other pleurae bare. Calypter and halter yellow.

Wing: hyaline; microtrichose, except bare on costal cell, anteriorly along vein RS, on cell br except for traces of microtrichia around vena spuria , on cell bm, on anterobasal 1/3 of cell cup.

Legs: Brown, with tarsi and apical 1/3 of pro- and mesotibiae yellow. Legs short yellow pilose. Coxae and trochanters brownish, with yellow to white pile.

Abdomen. Blackish brown, with large, oblique, lateral yellow markings over entire length of tergite 2, and yellow posterior margins of tergites 3 and 4. In profile with tergite 4 almost perpendicular to tergite 2, so apex of abdomen curved downward. Tergites 1 and 2 short black pilose, except yellow pilose on yellow markings. Tergites 3 and 4 entirely short yellow pilose. Sternites brown, short pale pilose. Male genitalia as in fig. 55.

Female. Same as male, except the following differences in the Abdomen. about 1.5 times wider than in male, with posterior margins of tergites strongly extending over next tergites, suggesting 'telescopic' capacities. The yellow poserior margins of tergites 3 and 4 are somewhat swollen.

Diagnosis. Recognizable by the following combination of characters: scutellum weakly sulcate, male: tergite 3 blackish brown with posterior margin broadly yellow, female: tergite 2 with two oblique yellow vittae, tergites 3 and 4 with yellow posterior margins.

Notes. The holotype of C. notata carries the label " Lectotype Ceratophya notata Wied. Design. Thompson 1977 ". However, assuming that this specimen indeed was used by Wiedemann to describe the species, and considering that there seems to have been only one specimen on which he based his description, it seems that this specimen should be regarded as the holotype.

Distribution. Known from Brazil and Surinam.

Figures

FIGURES 32 – 41. 32 – 35. Ceratophya carinifacies female (holotype). 32. head frontal; 33. head lateral; 34. puparium lateral; 35. puparium dorsal. 36 – 41. Ceratophya notata male (holotype). 36. habitus dorsal; 37. habitus lateral; 38. head frontal; 39. head lateral; 40. wing; 41. scutellum.

FIGURES 55 – 62. 55 – 57. Ceratophya, male genitalia. 55. C. notata (holotype); 56. C. panamensis (holotype); 57. C. scolopus (holotype). 58 – 62. Hypselosyrphus amazonicus male (Peru, coll. RMNH). 58. habitus dorsal; 59. habitus lateral; 60. head frontal; 61. head lateral; 62. wing.