Tachytes rufomarginatus Arnold

Pulawski, Wojciech J., 2019, A Review of the Wasp Genus Tachytes Panzer, 1806 of Madagascar (Hymenoptera: Crabronidae), Proceedings of the California Academy of Sciences 66 (7), pp. 117-135 : 133-134

Tachytes rufomarginatus Arnold

Figures 33–34. Tachytes rufomarginatus Arnold, 1945:109 , ♀, ♂

(as rufomarginata, incorrect original termination). Syntypes: Madagascar: Bekily ( MNHN) .

– As Tachytes rufomarginatus : R. Bohart and

Menke, 1976:266 (in checklist of world Sphecidae ); Nilsson, Jonsson, Rason, and Randrianjohany, 1986:412 ( Madagascar: Toamasina:

4 km S Mahavelona, as Foulpointe, as rufomarginata); Pulawski, 2003:798 (in checklist of Malagasy Sphecidae ); Madl, 2014:987 (in catalog of Ampulicidae , Crabronidae , and

Sphecidae of Madagascar, with synonymy and locality records).

RECOGNITION.— The galea of T. rufomar- Figure 33. Tachytes rufomarginatus Arnold. ginatus is slightly shorter than wide and terga Anterodorsal part of thorax showing ill-defined patch of appressed, silvery setae. I-III (I-IV in some specimens) are silvery fasciate apically. The female differs from similar species ( T. copiosus , T. flavocinereus , T. indifferens , and T. picticornis ) in having an ill-defined (almost absent) patch of silvery, appressed setae anterolaterally on the scutum (Fig. 33); the patch is well defined in the other species (e.g., Fig. 14 ).The males and most females differ from them by a partly reddish gaster, especially the apical segments. In the four other species, the gaster is all black. Subsidiary recognition features of T. rufomarginatus are: the scape all or predominantly ferrugineus, and in the male a partly reddish brown flagellum. RECORDS (Fig. 34).— Antsiranana (=

Diego Suarez) Province: Montagne des

Français at 12º18’8’’S 49º38’51’’E (1 ♀,

CAS), Sakalava Beach at 12º15’46’’S

49º23’51’’E (1 ♀, CAS), 3 km W Sakalava

Beach at 12º17.17’S 49º22.00’E (1 ♂, CAS) .

Fianarantsoa Province: Forêt d’Ampitavananima at 23º7.79’S 47º43.02’E (1 ♀, CAS) ,

near Isalo National Park at 22º37.60’S

45º21.49’E (3 ♀, 13 ♂, CAS), Réserve Spé-

ciale Manombo at 23º01.31’S 47º43.20’E (2 ♀,

1 ♂, CAS). Majunga Province : Ambovomamy

Belambo at 15º27.07’S 47º36.80’E (1 ♀,

CAS), Forêt d’Analamanitra at 16º8’S 45º42’E

(2 ♀, CAS). Toamasina Province: Forêt

FIGURE 34. Collecting localities of Tachytes rufmargind’Analava Mandrisy at 16º29’08’’S atus Arnold.

49º50’49’’E (1 ♀, CAS), 4 km S Mahavelona ( Nilsson, Jonsson, Rason, and Randrianjohany, 1986, as Foulpointe). Toliara Province: Bekily ( Arnold, 1945), Parc National d’Andohahela at 24º56.21’S 46.37.60’E (3 ♀, 2 ♂, CAS).

Figures

FIGURES 12–16. Tachytes flavocinereus Arnold. (12) Female clypeus; (13) Female galea; (14) Anterodorsal part of thorax showing patch of appressed, silvery setae; (15) Scutal punctures of female; (16) Male genitalia in dorsal view (arrow shows apex of volsella).