Lahichiridae, a family of the Deomiaptera. 199 
a naiTOw neck. This is not the case in L. 'punctata, but is in 
L. howardi, Burr, from Guatemala. 
As the two African forms are unknown to me in the 
flesh, I cannot erect a satisfactory table of species, but it is 
unlikely that a Central American insect can be confused 
with African forms. 
By good fortune I have been able to examine the 
original insect quoted by Caudell from Guatemala as 
Brachylabis nigra. Owing to the distance between Guate¬ 
mala and Para, I was not surprised to find on examination 
that Caudell’s specimen is distinct. It is a true Leptiso- 
lahis, as will appear from the following description. 
Leptisolahis hoioardi, Burr. 
Brachylabis nigra, Caudell, 1907^, p. 172. 
Leptisolabis howardi, Burr, 1910, Proc. U.S. Nat. Mus., 
vol. 38, p. 449. 
Statura minore, gracili ; colore atro, antennis pedibusque palles- 
centibus ; corpus totum confertim punctulatum ; oculi magni, mar- 
ginem posticum capitis fere attingentes ; prouotum elongatum et 
postice anipliatum, margine antico in collem producto ; forcipis 
bracchia cylindrica, basi baud coutigua, sensim arcuata. 
Long, corporis.8 mni. 
„ forcipis.I’To „ 
Size small and slender. 
Colour jet black, dull. The whole boily clothed with long golden 
pubescence. The whole surface finely and densely punctulate. 
Antennae with 1.3 segments, brownish grey, all the segments very 
thick, 3rd scarcely longer than broad, 4th really broader than long ; 
5th globular, the rest gradually lengthening and also thickening. 
Head tumid, hinder margin straight, sides convex, and in front 
triangular. The small marks on the frons indistinct. The punctu- 
lations are exceedingly fine. 
The eyes are very large and prominent, ovate in shajje, and extend 
from the insertion of the elytra almost in the posterior margin of 
the head, gently converging posteriorly. 
Pronotuin about H times as long as the average breadth, all 
margins straight, sides gently diverging as the pronotuin widens 
somewhat posteriorly. The anterior margin has the middle portion 
produced slightly, and carried a short but distinct cylindrical neck, 
so that the head is distinctly separated from the pronotuin. 
