189 
Explanation of the Plates. 
Plate IV. 
y a cipher in Plate IV and V states that the corresponding 
Eng is drawn by Dr. H. J. Hansen. 
br Rki darts segmentatus. Q vix X 16. 
1. Groove between the head and thorax,. 2. between the thorax and 
il. a. anal hill. 
2 E, s. & X 24 showing the colour. s. stigmata; m. muscular spots. 
33 E.s. g X 32 seen from below, showing the coxae; m. maxillary lobe; 
a. labial appendages; b. copulatory sucker 
47 Es. 395. Pseudocapitulum seen fobi the side, covered by the 
divided into two teeth b; 1. root of the antennae; I. labrum; m. maxil- 
lary lobe; p. maxillary plate; é. trochanter of the palps 
5." E.s. GX 70. Pseudocapitulum seen from above showing the ,rostrum« 
r; the first and third joint of the antennae 1 and 3; m and I as in 4. 
$2 E. s. >< 106. Foremost part of the pseudocapitulum as it is seen 
when the antennae are taken away. I. pars distalis of the labrum. 
7," E.s. 260. Left maxillary lobe and km seen from the inner side. 
1, 2 and 3 thickened lists; f. front margin curled outwardly; s. maxil- 
lary spine; m. as i 
Bu ABSes: 50210) fdbrrt l. and i. left lateral lobe, seen from the inner 
side with the two rows of teeth. 
E.s. x60. Palp. f. femur; t. proximal part of the tarsus. 
10. E.s. >x148. Left antenna seen from the inner side. c. fonden of 
the adductor; d. abductor. 
11. E.s. > 160. Fan hairs from the femur. 
12. E.s. x 140. Fan- and sense hairs from the metatarsus. 
18. E.s. x 150. Terminal hair of the tibia with fan- and pointed hairs. 
14, Eu. Arabicus X 160. Clumsy pointed hairs from the patella 
15. Es. x 160. Usual pointed hairs of metatarsus 
16. Es. x 175. Hairs of the head 
17. E.s. x 350. Lyriform area, showing the chitinous bar, surrounding 
the membraneous area with a median spot. 
