1901.] 



219 



The neuratioii of Henicocephalus is very peculiar, and has been 



neglected almost en- 

 tirely by previous 

 writers. The entirely 

 membranous elytra 

 of two species (Mac- 

 lachlani. fig. 1, and 

 ielescopicus^ fig. 2) 

 are figured. As the 

 neuration does not 

 correspond with that 

 of any other Rhyn- 

 chotal genus known 

 to me, and as the neural nomenclature in this Order is still very con- 

 fused, I do not propose to give a description. It may be noted, 

 however, that the claval suture (a) is evanescent apically (as in many 

 Ilomoptcrn), and does not reach the lateral margin of the elytron. 



The neuration of the various species is somewhat dissimilar.* 

 //. concolor (e. y.) is considerably reticulate. In one specimen of H. 

 Maclachhini the cell marked h has a cross veinlet extending from the 

 vein c to the exterior margin at d. 



The series of this species and of R. felescopicus that I have 

 examined are either all of one sex, or do not present any notable 

 external sexual differences. The species appear to have a compara- 

 tively very small range of variation in dimensions among themselves. 



In the third volume of Lethierrj and Severin's " Catalogue General des 

 Hemipteres " (1896), there are three misprints : — 



1. Enicocephalus was so named by Westwood, and followed by Stal in 1858. 

 It was first altered to Henicocephalus by Stal in 1865, Eemiftera Africana, iii, 

 p. 166. 



2. For Si/stelloderus, Blancliard, read Systelloderes. 



3. For curculis, Karsch, read curculio. 

 Add : — 



sp. 13—fuIvescens, Westw., I.e. p. 23, from anime. 



sp. 14/18 — antmlipes, angustatus, concolor, emargi.natus, and pilosus, 



Champion, Biologiii, I.e., pp. 159 et seqq ; Central America. 

 sp. 19 — Maelachlanl, here described from New Zealand. 



St. Abbs, Worple Road, Wimbledon : 

 June, 1901. 



* See figme of H. pellvciilus iHoivitthI in Revue d'Entom., 1S88, plnte I ; and tlie figures in 

 the Biologia, I. c. 



