304 Wheeler. 



but I infer that they also regularly spin cocoons. He states, however, 

 that one of the smallest workers was seen to pupate without a cover- 

 ing. Some confusion was introduced into the account by Miiller's 

 finding among the Eciton brood a number of small cocoons which 

 Forel interpreted as containing pupte of "substitution males," but 

 which Emery (1900) later interpreted as kidnapped Ponerinse. From 

 what is now known of ant-larvse it can be positively asserted that 

 Miiller's description and Fig. 2 refer to larvte of the Ponerine genus 

 Pachycondyla and very probably to one of the common species, harpax 

 Fabr. or striata F. Smith. While it thus appears that the larvse of at 

 least one species of Eciton sens. str. spin cocoons, the habit is probably 

 Jiot widespread in the subfamily Dorylinpe. Both the worker and 

 soldier pupse of various Congolese species of Doryhis of the subgenus 

 Anomma in my collection are all nude, Forel (1912) figures the pupae 

 of A. nigricans as nude and, according to Emery (1901) neither the 

 worker nor the male pupa of Doryhis (s. str.) affinis Shuckard is en- 

 -closed in a cocoon. 



I insert here technical descriptions of the female E. bvrchelli and of 

 the male, which was not described in sufficient detail by Westwood. 



Fcviale (Fig. 2, 4a). Length 21-23 mm.; head, thorax and petiole 

 9-10 mm., gaster 12-13 mm. 



Head as broad as long, distinctly broader in front than behind, 

 with straight sides, feebly impressed in the ocular regions and with 

 convex, rounded posterior border. A pronounced groove runs down 

 the middle, deepest on the anterior half and expanding in the region 

 of the frontal area, feebler behind and obsolescent near the occipital 

 border. There are small obtuse projections at the inferior occipital 

 corners of the head, corresponding to the acute, recurved spines in the 

 soldier. Eyes at the middle of the sides of the head, in the form of 

 small, convex, ocellus-like structures, of the same size as in the soldier. 

 Ocelli absent. Mandibles long, slender, falcate and toothless, straight 

 except at their tips. Clypeus short and broad, slightly impressed in 

 the middle, its anterior border feebly and evenly arcuate in the middle 

 and very feebly sinuate on the sides. Antennal fovese not carinate 

 externally as in the worker, the frontal carinse farther apart, each 

 forming a thick welt, which suddenly narrows anteriorly to curve 

 around the front of the antennal insertion. Antennae long; scapes 

 robust, about half as long as the head and clypeus together; funiculi 

 «lender, their first joint as long as broad, the remaining joints growing 

 gradually shorter and narrower to the penultimate; joints 2-4 twice 

 .as long as broad, terminal joint shorter than the two preceding taken 



