(dr. a. C. 0UDEM\NS). notes on ACAKÎ. 127 



in each posterior corner. Between the shields, laterally, a hair. 

 Posterior shield trapezoidal, with rounded angles and rounded pos- 

 terior edge, longer than wide, widei' antcrioily, much Jiairdwer 

 than the anterior shield; with one hair in each anterior, and 2 

 in each posterior corner. Behind this shield 2 pair of hairs. So 

 that there are 20 hairs on the dorsal side. These àairs are narrow 

 feathers. 



Ventral side (fig. 45). Coxae 1, 3 and 4 with 2, coxae 2 with 

 i hair each. Between coxae 4 one pair of hairs; behind coxae 2 

 one pair; between coxae 4 one pair; behind coxae 4 one pair. 

 All these hairs are fine and smooth. Genital aperture long, sur- 

 rounded by 4 pair of small bristles. Anal aperture on its usual 

 protuberance, surrounded by 3 pair of crooked pins, and flanked 

 by a pair of feather-shaped hairs. The lateral hair hairy. 



Maxillae. Borsally (fig. 44) the very short trochanter is visible; 

 the stout femur with one almost central hair; the short genu 

 with one hair proximally; the short tibia with one hair close to 

 the tarsus, and distally with the claw which has 2 basal and inner 

 tubercles; the tarsus with 2 combs. Yentrally (fig. 45) the coxae 

 with 1 hair close to the trochanter; the very short trochanter 

 bare; the femur with 2 hairs in the proximal half, one inner and 

 one outer one; the genu with one outer hair; the tibia with one 

 inner an one outer hair; the tarsus with 2 crooked claw-like hairs. 



Legs (fig. 44). Femur i, 2, 3, 4, genu 1, 2, 3, 4, and tro- 

 chanter 3 with a feather-shaped hair. Tibia 4, 2, 3, 4, and tarsi 

 4, 2, 3, 4, with 2 tactile hairs each. Sense organs: genu 4 dis- 

 tally with a small, tibia 4 distally with a larger, tarsus 4 in the 

 middle with a still larger rod- or sausage-shaped sense-hair ; this 

 last not acconipanied hy a long tactile hair 



Mon-itrous female (fig. 46). I hesitate to call this female a 

 heteromorphous one. I only found one specimen, which I have 

 delineated. It is possible that other investigators after me will 

 meet with such an animal; then they will carefully examine if 

 there are more specimes present, if it is a distinct species, etc. 

 The only characters that distinguish it from the other females are 

 lijdschr. V. Entom. XLVI. 9 



