|
| (1) Scutellum with a conical hump bearing a fingernail like tip (Figure 1(i–k)) | 2 |
| –Scutellum normal, without conical hump | 6 |
|
| (2) Scutellum with hump long and fingernail sharp and highly projecting (Figure 1(k)) | 3 |
| –Scutellum with hump short, fingernail not much sharp and projecting as above (Figure 1(i and j)) | 5 |
|
| (3) Forewing with basal cell hairy and closed below. Size 4 mm | P. clavicornis (Ashmead) |
| –Forewing with basal cell not hairy as above, sometimes few hairs at tip and open below | 4 |
|
| (4) Antennae with pedicel as long as F1, scape, pedicel, anelli and three-fourth from base of F1 testaceous, clava shorter than 4 preceding segments combined; gaster 1.72x as long as hind tibia and 0.9x rest of the body. Size 3 mm | P. neoclavicornis Narendran & Girish Kumar |
| –Pedicel almost 2x F1, F1 black as remainder of antenna, clava longer than four preceding segments combined (Figure 1(e)) gaster 1.4x as long as hind tibia and 0.7x as long as rest of the body. Size 3 mm | P. intermedia sp.nov. |
|
| (5) Scutellar hump short (Figure 1(i)) median length of scutellum up to tip of hump 0.73x length of mesoscutum; hind tibial spur long, almost half as long as basitarsus; forewing with PMV 0.72x as long as MV; eyes short, length 1.6x width; gaster dorsally with metallic blue reflection; antenna with scape, pedicel and anelli brown; legs with femora brown. Size 2.7–2.9 mm | P. heydoni Sureshan |
| –Scutellar hump long (Figure 1(j)) median length of scutellum up to tip of hump 0.82x length of mesoscutum; hind tibial spur short, 0.3x as long as basitarsus; forewing with PMV 0.9x as long as MV; eyes longer, length 1.9x width; gaster dorsally without blue reflection; antenna with scape, pedicel and anelli testaceous; femora testaceous. Size 2.5–3.6 mm | P. scutellata Sureshan |
|
| (6) Antennal flagellum strongly clavate (Figure 1(g)); F1 short; antenna except clava testaceous, scape reaching far below level of median ocellus. Size 2.1 mm | P. clavata Sureshan & Narendran |
| –Flagellum not strongly clavate as above; F1 not as above; antennae with scape, pedicel, anelli, and F1 testaceous, remainder brownish black; scape just short of reaching or just touching median ocellus | 7 |
|
| (7) Malar grooves not distinct. Antenna with clava shorter than three preceding segments Combined; gaster long, 0.93xs as long as head plus thorax combined; scutellum without long hairs or bristles. Size 2.5 mm | P. ghanii Subba Rao |
| –Malar groove distinct, clava as long as or longer than three preceding segments combined; gaster 0.7-0.8x as long as head plus thorax combined; scutellum with long white hairs or black bristles | 8 |
|
| (8) Clava as long as three preceding segments combined; scape distinctly reaching median Ocellus (Figure 1(a)); gaster, 0.8x as long as head plus thorax combined; scutellum with long white bristles, Size 1.6–2.4 mm | P. vinayaki Sureshan & Narendran |
| –Clava as long as 3.5 preceding segments combined (Figure 1(c)); scape just short of reaching median ocellus; gaster, 0.7x as long as head plus thorax combined; scutellum with long black bristles. Size 2.8–3 mm | P. namdaphaensis sp.nov. |
|
