Toxomerus paragrammus (Schiner)

Mengual, Ximo, 2011, Black-tie dress code: two new species of the genus Toxomerus (Diptera, Syrphidae), ZooKeys 140, pp. 1-26 : 15-16

Toxomerus paragrammus (Schiner) Figure 26

Mesogramma paragramma Schiner 1868: 349. Type locality: South America [Venezuela] [ST ♂, NMW].

Differential diagnosis.

Species with face produced forward, yellow, with gena brown. Scutum black, bronze pollinose, with a broad yellow lateral vitta, yellow and black pilose. Scutum yellow, black pilose. Pleuron mostly black except posterior anepisternum yellow on posterior 2/3, katepisternum with a dorsal yellow macula and anepimeron yellow on anterior and dorsomedial sections. Wing hyaline, microtrichose. Abdomen mainly black, with a broad yellow lateral margin in terga 1 to 5; tergum 2 with a medial black pollinose macula; terga 3 and 4 with two subanterior fasciate maculae that can eventually meet in the middle with a central yellow vitta (Fig. 26).

Length

(2): body, 6.8-7.0 (6.9) mm; wing, 6.3-6.5 (6.4) mm.

Distribution.

Venezuela.

Material examined.

2♂ syntypes.

Remarks.

Toxomerus paragrammus is another species that most of the times will not run through the key because the presence of yellow maculae on the abdomen. I included this species because I think some dark specimens might have black abdomen with yellow lateral margins.