A wasp is any insect of the narrow-waisted suborder Apocrita of the order Hymenoptera which is neither a bee nor an ant and excludes the broad-waisted sawflies (Symphyta), which look somewhat like wasps, but are in a separate suborder.

The wasps do not constitute a clade (a complete natural group with a single ancestor), whereas bees and ants are deeply nested within the wasps, having evolved from wasp ancestors. Wasps that are members of the clade Aculeata can sting their prey.

The most commonly known wasps, such as yellowjackets and hornets, are in the family Vespidae and are eusocial (living together in a nest with an egg-laying queen and non-reproducing workers). Most wasp species are however solitary, with each adult female living and breeding independently. Females typically have an ovipositor for laying eggs in or near a food source for the larvae, though in the Aculeata the ovipositor is often modified instead into a sting used for defense or prey capture. Wasps play many ecological roles. Some are predators or pollinators, whether to feed themselves or for their larvae. Many, notably the cuckoo wasps lay their eggs in the nests of other wasps (kleptoparasites). Many of the solitary wasps are parasitoidal, meaning they lay eggs on or in other insects (any life stage from egg to adult) and often provision their own nests with such hosts. Unlike true parasites, the wasp larvae eventually kill their hosts. Solitary wasps parasitize almost every pest insect, making wasps valuable in horticulture for biological pest control for whitefly in tomatoes and other crops.

The largest social wasp is the Asian giant hornet, at up to 5 cm in length. Among the largest solitary wasps is a group of species known as tarantula hawks, along with the giant scoliid of Indonesia (Megascolia procer). The smallest wasps are solitary parasitoid wasps in the family Mymaridae, including the world’s smallest known insect, with a body length of only 0.139 mm, and the smallest known flying insect, only 0.15 mm long.

Source: Wikipedia

Family Braconidae

Braconidae 086A5928
(Singapore)
Braconidae 086A8229
(Singapore)
Braconidae 086A2631
(Singapore)

Subfamily Agathidinae

Agathidinae 086A1953
(Singapore)
Agathidinae 086A6726
(Singapore)
Agathidinae 086A4289
(Singapore)

Subfamily Doryctinae

Doryctinae 0F1A2134
(Singapore)
Doryctinae 0F1A2240
(Singapore)
Doryctinae 0F1A2242
(Singapore)
Doryctinae 086A1555
(Singapore)
Doryctinae 086A3295
(Singapore)
Doryctinae 086A3585
(Singapore)
Doryctinae 086A3792
(Singapore)
Doryctinae 086A1319
(Singapore)
Doryctinae 086A8652
(Singapore)
Doryctinae 0F1A5338
(Sabah, Malaysia)
Doryctinae 086A2492
(Singapore)
Doryctinae 086A0170
(Singapore)

Family Crabronidae

Subfamily Crabroninae

Tribe Larrini

Tachytes sp. 086A9164
(Singapore)

Subfamily Pemphredoninae

Tribe Psenini

Psenulus sp. 086A7651
(Singapore)
Psenulus sp. 086A0537 (small) colonial roosting with Eustenogaster micans (large) (non- Crabronid) (Singapore)

Family Eucharitidae

Subfamily Eucharitinae

Tribe Eucharitini

Ancylotropus sp. 0F1A2977
(Johore, Malaysia)
Ancylotropus sp. 086A1382
(Singapore)
Stilbula sp. 086A8589
(Singapore)
Stilbula sp. 086A8765
(Singapore)

Family Eupelmidae

Eupelmidae 0F1A2208
(Kaeng Krachan NP, Thailand)

Subfamily Calosotinae

Balcha sp. 086A2653
(Singapore)

Family Ichneumonidae

Ichneumonidae 086A0189
(Singapore)
Ichneumonidae 086A7002
(Singapore)
Ichneumonidae 086A5683
(Singapore)

Subfamily Cryptinae

Tribe Cryptini

Goryphus sp. 086A1106
(Singapore)
Gotra sp. 086A5325
(Singapore)
Gotra sp. 086A6304
(Singapore)

Subfamily Ophioninae

Tribe Enicospilini

Enicospilus sp. 0F1A9908
(Andasibe, Madagascar)
Enicospilus sp. 0F1A2457
(Singapore)
Enicospilus sp. 086A0990
(Singapore)
Enicospilus sp. 086A3539
(Singapore)
Enicospilus sp. 0F1A9129
(Tandayapa, Ecuador)

Tribe Pimplini

Xanthopimpla sp. 086A8385
(Singapore)
Xanthopimpla sp. 086A9107
(Singapore)
Xanthopimpla sp. 086A0696
(Singapore)

Subfamily Rhyssinae

Rhyssinae 086A6402
(Singapore)
Rhyssinae 086A9314
(Singapore)

Family Metapelmatidae

Subfamily Metapelmatinae

Metapelma sp. 0F1A2166
(Kaeng Krachan NP, Thailand)
Metapelma sp. 086A4238
(Singapore)

Family Mutillidae

Subfamily Mutillinae

Tribe Trogaspidiini

Trogaspidiini 0F1A9956
(Sarawak, Malaysia)
Trogaspidiini 0F1A0167
(Johore, Malaysia)
Trogaspidiini 0F1A0545
(Singapore)

Subfamily Sphaeropthalminae

Tribe Pseudomethocini

Hoplomutilla sp. IMG_2651
(Tandayapa, Ecuador)

Family Pompilidae

Pompilidae IMG_6396
(Singapore)
Pompilidae 0F1A9872
(Johore, Malaysia)

Subfamily Pepsinae

Tribe Ageniellini

Auplopus sp. 086A5039 with Olios sp. prey
(Singapore)

Tribe Pepsini

Cryptocheilus sp. 0F1A9503
(Phuket, Thailand)

Subfamily Pompilinae

Tribe Pompilini

Episyron sp. 086A1434 with Eriovixia sp. prey
(Singapore)

Family Scoliidae

Subfamily Campsomerinae

Phalerimeris sp. 086A3017
(Singapore)

Subfamily Scoliinae

Scolia superciliaris
(Singapore)

Family Stephanidae

Stephanidae 086A3016
(Singapore)
Stephanidae 0F1A2659 (Singapore)
Stephanidae 086A3624 (Ovipositing)
(Singapore)

Family Torymidae

Torymidae 086A7599 (On mantis ootheca)
(Singapore)
Torymidae 086A7599 (Close-up)
(Singapore)

Family Vespidae

Subfamily Eumeninae

Stenodyneriellus guttulatus
(Singapore)

Subfamily Polistinae

Tribe Polistini

Polistes meadeanus
(Sarawak, Malaysia)
Polistes stigma
(Singapore)

Tribe Ropalidiini

Ropalidia anarchica
(Akanin’ ny Nofy, Madagascar)
Ropalidia erythrospila
(Singapore)
Ropalidia fasciata
(Singapore)
Ropalidia regina
(Akanin’ ny Nofy, Madagascar)
Ropalidia stigma
(Singapore)
Ropalidia subclavata
(Akanin’ ny Nofy, Madagascar)
Ropalidia sumatrae
(Singapore)
Ropalidia timida
(Singapore)
Parapolybia varia
(Singapore)
Ropalidia variabilis
(Akanin’ ny Nofy, Madagascar)
Ropalidia sp. 0F1A1606
(Akanin’ ny Nofy, Madagascar)
Ropalidia sp. 086A2529
(Singapore)