( 574 ) 



only at aud uear the margins, four lateral ones on each elytrnni being long. 

 Neither the jininotnm nor the elytra have a comb of spines. 



The jirosteruuiu has a less pointed and less strongly chitinised intorcoxal process 

 than in the adult, but this process nevertheless differs, as in the adult, from that of 

 r. molosms and F. lo/cteridis in its tip being rounded-poioted, not sinuate. The 

 elevate central area of the meso-metasterna is elongate-ovate, and does not bear 

 more than twenty-five bristles, of which, on each side, one near the base, and 

 another near the mid coxa are long. The metaj)leura are not produced laterad into 

 a process as in the adult. 



The fore tarsus consists of two segments. The mid and hind tibiae have 

 seven or eight fiilse articulations. The mid and hind tarsi are slender, and have 

 three segments. 



The abdominal tergites bear one row of bristles, there being hardly any 

 additional bristles at the sides. One lateral bristle on each segment is long 

 and strong ; the seventh segment has altogether four, and the eighth eight long 

 apical bristles. 



The bristles and spines on the newly forming skin are visible under the 

 old one, but do not differ. The nymph, however, described by Speiser, I.e., 

 exhibited the pronotal and elytral combs of the imago under its skin. 



The British Museum collection contains : 



2 immature specimens (one of them t'/pe of spasmae) from Java, off Mega- 

 derma spasma. 



1 S aud 1 ? from (Sumatra, off' Megaderma U/ra. 



In other collections : 



1 uymph (armature of imago visible) in the Indian Museum, Calcutta, from 

 Trivandrum, off Cgnopterus maryiiiatus. 



2 specimens ( ? ? y) in Zool. Institute at Gottingen and 1 in coll. ISpeiser, from 

 Nias, oS Megaderma spasma. 



2. Eoctenes intermedius Speis. (1904) (PI. XIII. fig. 9). 



E. spasmae similis, elytris multo brevioribus, abdomine segmentis posticis 

 absque setis longis seriatis. 



Patria : Aegyptus ; Sudan. 



I'ulyclenes intermedius Speiser, Zool. Jnlirh. Suppl. fii. p. 373. tab. 20. fig. 1. 2 (i;i04) (Egypt, 



off Ttqihoxoux perj'onitus, 2 specimens). 

 Eoctenes ehiiomius Kellogg & Paine, Eiil. Xeios .x.\i. p. 402. tab. 13. ^ (191U) (Khartum, 



2 cJ <? aad 1 ? ). 



Only adult specimens are known. 



The original specimens of hdermediius, a male aud a female, are in the 

 collection of the Konigl. Zool. Museum at Kunigsberg. Tiianks to the kind services 

 of Dr. A. Dampf, we have been enabled to compare them with the examples from 

 the Sudan (Khartum) in the British Museum obtained by the Entomological 

 Research Committee (Tropical Africa). Three of the five Sudanese specimens were, 

 by an oversight, sent with Mallophaya to Professor Kellogg, wlio described them 

 as a new species, not being aware of the earlier publication of an Egyptian 

 Polyctenid. A S and the one ? have been returned by him marked " type."' The 

 Sudanese examples agree perfectly with the pair of intermedius; the name 

 eknomius, therefore, is a synonym. 



