Proparholaspulus

Liu, Kai, Xie, Lixia, Lu, Wenzhi & Yan, Yi, 2022, Taxonomic notes on the predatory mite genus Proparholaspulus Ishikawa, 1980 and the first description of the male of Proparholaspulus ishikawai Liang & Hu 1993 (Acari: Parholaspididae), Zootaxa 5092 (3), pp. 387-395 : 393

Key to the world species of Proparholaspulus based on females

1. Dorsum with 74 pairs of setae. Dorsal shield with 48 pairs of setae, 23 pairs of simple setae anteriorly, 25 pairs of pilose posteriorly. Geniti-ventrianal shield with six pairs of pre-anal setae of which the four most posterior pairs are pilose. Epistome without any elongated median extension or lateral extension.......................................... P. elongatus

- Dorsum with fewer than 60 pairs of simple setae. Geniti-ventrianal shield with five pairs of simple pre-anal setae. Epistome with an elongated median extension, with or without lateral projections.......................................... 2

2. Dorsum with more than 50 pairs of simple setae. Geniti-ventrianal shield with five pairs of simple pre-anal setae; anterior and lateral margin of geniti-ventrianal shield with thickly sclerotised strips, not bearing on setae Jv1; fixed digit of chelicera with three teeth, movable digit with two teeth; epistome with two lateral projections.................................... 3

- Dorsum with no more than 45 pairs of simple setae. Geniti-ventrianal shield with four pairs of simple pre-anal setae; anterior and lateral margin of geniti-ventrianal shield with thickly sclerotised strips bearing on setae Jv1; fixed digit of chelicera with five teeth, movable digit with three teeth; epistome without lateral projections..................................... 5

3. Dorsum with at least 55 pairs of setae. Epistome with a median project sharply pointed,and a pair of elongate and several short projection on either side............................................................................... 4

- Dorsum with 50 pairs of setae. Epistome with a median projection sharply pointed, and with a pair of short lateral projections......................................................................................... P. squamosus

4. Idiosoma length about 700μm. Dorsum with 55 pairs of setae. Geniti-ventrianal shield large, slightly longer than width. Metapodal shields small. Epistome with anteriorly divided median extension............................. P. montanus

- Idiosoma length about 400μm. Dorsum with 56 pairs of setae. Geniti-ventrianal shield is obviously longer than width. Metapodal shields narrow, elongate. Epistome with sharply pointed median extension.............................. P. pasohensis

5. Dorsum with 43 pairs of simple setae; dorsal shield with 31 pairs of setae, lateral membrane with 12 pairs of setae. Epistome with sharply pointed median extension and spinous lateral projections. Tarsus II with a pair of stout spines apically.................................................................................................... P. suzukii

- Dorsum with 45 pairs of simple setae; dorsal shield with 31 pairs of setae, lateral membrane with 14 pairs of setae. Epistome with sharply pointed median extension that its single side is serrated, and spinous lateral projections. Tarsus II with two pairs of stout spines apically......................................................................... P. ishikwai