APOLONIINAE 
109 
Scutum longer than wide, tongue-shaped with additional setae behind PL; AM absent; 
SB wide apart and near to AL. No coxal, palpal or scutal peg-like spines as in 
above. Sensillae long and fine, nude. Palpal tarsus long, with two strong terminal 
spine-like setae. Chelicerae short and hook-like 
Gen. Mackerrasiella nov. 
4. Tarsal claws single, without empodium 5 
Tarsal claws paired, with median empodium; PL setae placed on scutum 6 
5. Scutum with pronounced antero-median process, bearing 2 AM setae; AL and PL 
setae strongly dentate; with an aberrant crista. Sensillae filamentous and nude. 
Palpal claw bifurcate and strongly hook-like. 
Gen. Neotrombidium Leonardi 1901 
= Monunguis Wharton 1938. (Adult)* 
Scutum without anterior median process or crista. AM absent. AL and PL normal 
with short ciliations. Sensillae ciliated distally. Tarsi with a pair of spathulate 
setae flanking claw. Palpal claw with 4 strong sickle-like prongs. 
Gen. Grossia nov. 
6. Without AM setae. Scutal setae normal. Coxal setae short, stout and peg-like. 
Gen. Nothotrombicula Dumbleton 1947. 
With 2 AM setae. Scutal setae fairly short, stout and peg-like with fine distal barbs. 
Coxal setae normal. 
Gen. Womersleyia Radford 1946. 
Genus Nothotrombicula Dumbleton 1947 
Trans, roy. Soc. N.Z. , 1947, 7^ 4 1 - 
Scutum with anterior median process but no anterior median setae. Sensillae long and 
filamentous and nude. Tarsi with paired claws and median claw-like empodium; legs all 
7-segmented; coxae I with 2, II and III with 1 short, stout, peg-like setae. 
Type Nothotrombicula deinacridae Dumbleton. 
Nothotrombicula deinacridae Dumbleton 1947 (figs. 1 A-H). 
Trans, roy. Soc. N. Z., 1947, 7 6, 41 1, figs. 8-10. 
Redescription of Larvae. — Size large, oval; length to i 200 ;jl, width to 66ou 1. Scutum as figured, 
transverse with PW greater than AW, and with an acute triangular antero-median process ; AM wanting, 
AL and PL subequal, sensillae filamentous, nude, and bases slightly in front of midline between AL and 
PL, with a fine posterior and fine transverse striations between. Eyes 2 — 2. Chelicerae with teeth? 
Galeal setae ? Palpi rounded laterally, tibial claw short, stout, trifurcate ; seta on femur lightly ciliated apically, 
genu and tibia all nude; tarsus small. Dorsal setae stout, only slightly ciliated, tapering, 26 in number 
and arranged 6. 6. 6. 6. 2. Ventrally, with a pair of normal setae on maxillae, 2 short peg-like setae on coxae I, 
one similar seta on coxae II and III, a pair of normal setae between coxae III and therefore 10.6.2.2.2. 
plus 2 stout spines on lobes of anus. Legs: I 200tjt, long, II 185^, III 180^.. 
The Standard Data for the type and 2 paratypes as given by Dumbleton are : 
AW 105.0, 105.0, 105.0, PW 155. 1, 161.7, 165.0, SB 42.9, 49.5, 49.5, 
ASB 49.5, 49.5, 49.5, PSB 42.9, 42.9, 42.9, A-P 504, 56.1, 59.4, 
AL 75.9, 72.6, 82.5, PL 82.5, 82.5, Sens. 138.6, 141.9, 155. 1. 
Loc. and Host. — This very interesting genus and species was described from specimens parasitic on 
the Giant Weta or King Cricket of New Zealand ( Deinacrida rugosa?) from Mt. Peel, Nelson, New 
Zealand. 
* The genus Neotrombidium is based on adult material (genotype Neotrombidium barringunensc Hirst, 1928). Monunguis 
Wharton, 1947, was based on larvae. In correspondence with me, and in a brief note (1947) Wharton has indicated the synonymy 
of Monunguis with Neotrombidium. The nearest relatives of this genus are the genera here placed in the Apoloniinae. For the 
sake of completeness and for comparison with the others, Neotrombidium is provisionally included in the above Key under the 
characters of the larvae of Monunguis syn. Discussion of this genus is however reserved for a subsequent paper. 
MALA YA, No. 26 , 1953 
