[88 



Id II I I i\ Mi >l I \l 01 « 0MPARA1 l\ l ZOOLOGY . 



72, Camponotub (Mybmegonla lauMnbib, p. qov. Fig. 35. 



it orker. Length 5 mm. 



Head longer than broad, sides nearly Btraight, Bidet of occipul roundly 



oarinate, occipital angles narrowly rounded, posterior border concave, ( "ly- 

 D6U8 feebly convex, anterior border broadly rounded. Antennal BCapefl sur- 

 passing occipital corners by nearly half their Length, l'roiiotuni convex, much 

 broader than long. Mesoepinotuin compressed, behind very Btrongly, with an 



acute margin; in profile elevated, irregularly arcuate and projecting behind at 



elongate triangular tooth. Kpinotal base in profile strongly concave, its 



Surface rounded. Petiole elongate, cuboidal, inclined forward; seen from 



above' triangular, with the corners rounded; anterior and lateral borders 

 margined. 



Fig. 35. — Caniponotus (Myrraegonia) lauensis Mann, 

 and petiole. 



Worker. Lateral view of thorax 



Moderately shining. Mandibles punctate and striate. Head, body, and 

 appendages coriaceous-rugulose. 



Bred hairs long and fine, sparse on head, more abundant on gaster. Shorter 

 appressed hairs sparse in head, body, and appendages. 



Color black. Legs light reddish brown. 



Lau: Kabara, Waquava. 



The structure of the head and petiole is almost identical with that 

 of schmeltzii hut the more compressed and strongly backward-project- 

 ing epinotum is entirely different, resembling somewhat that of an 

 extreme form of lam in (it us. 



The subgenus Myrmegonia is made up of a complex of species, with 



