| MOSQUITO | Small slender fly, the female of which sucks the blood of animals |
| HORSEFLY | Large stout-bodied fly, the female of which sucks the blood of horses, cattle and man (8) |
| CLEGG | Large swift fly the female of which sucks blood of various animals. |
| CLEG | Large swift fly the female of which sucks blood of various animals. |
| PRINCESS | The female of the lemur; or, a square cut diamond (8) |
| EIDER | Type of sea duck, the female of which is the source of a down used for quilts, etc (5) |
| REDBUG | Larval mite that sucks the blood of vertebrates including human beings causing intense irritation. |
| MANTIS | Preying animal, the female of which is deadlier than the male! (6) |
| MOSQUITOS | Small flying insects, the female of which transmit malaria, and yellow fever (9) |
| BLACKWIDOW | American spider, the female of which eats her mate (5,5) |
| WIDOW | Black _, American spider, the female of which is highly venomous (5) |
| PURPLE | Large European woodland butterfly, the female of which is patterned with dark brown and white markings (6,7) |
| PURPLEEMPEROR | Large European butterfly, Apatura iris, the female of which is patterned with dark brown and white markings (6,7) |
| ALSOPHILA | Genus of moths, the females of which are flightless (9) |
| BLACKBIRD | They were taken to Australia and New Zealand in the 19th century. The female of this species makes a nest of plant stems, grass, twigs, and roots in the shape of a cup. In the New World, the name of t |
| MURDERER | Looking back, it's about 12 across, for example, who sucks the life out of others (8) |
| APHID | Small flying pest that sucks the sap of certain plants (5) |
| FUNSPONGE | One who sucks the joy out of the room |
| KIPLING | Source of the line "The female of the species is more deadly than the male" |
| BRAMSTOKER | An arachnid that sucks the juices of its prey was named after this author |
