193 
Maxillary palpi. 
3d joint. On the interior side of the basal portion 
a small, irregular group of 4 arched, transverse fissures; 
on the exterior side a similar group. On the dorsal 
side and slightly round upon the exterior side a group 
of 5 oblique longitudinal fissures of most unequal length, 
one of them very long. 
Mandibles. 
On the exterior side (not the interior side, as stated 
by Gaubert) of the Ist joint, towards its dorsal side 
slightly outside the middle an irregular group of c. 4 
longer and several very short longitudinal and oblique 
fissures. (On the exterior side of the 2d joint a belt, 
narrow at the basis and getting by degrees broader to- 
wards the apex, of numerous, irregular, very small 
longitudinal fissures; similar fissures are found also on 
the whole lower side of the same joint and on the 
exterior side of the basal portion of the 3d joint. I 
must leave to future to make out the true nature of 
these fissures; I am still doubting as to them being in 
any way connected with the lyriform organs). 
Body. 
On the Ist sternite 2 pairs of fissures are found, 
the foremost pair is situated about where the sternite 
is tapering to form the median lobe under the ovipositor, 
and towards the lateral margins the second pair, with 
about the same mutual distance of the fissures as the 
Ist pair, is situated a little in front of the posterior 
margin of the sternite. All 4 fissures are oblique, 
almost radiating towards a point in the centre. 
I have also found solitary fissures on other sternites 
of the abdomen and on the cephalothorax, and no doubt 
they are found in a small number spread over the 
whole body, but, as I said before, they are difficult to 
point out, whereas Nemastoma easier provides a 
Entom. Medd. 4 B. 13 
