TRICIIOPTERYGII)^. 
259 
nograpli of the Trichopterygia. London : 1872^ sm. 4tOj 
pp. 189^ 31 pis. [reviewed in Ent. M. M. viii. p. 277, and 
Nouv. et Faits, p. cxvii] . 
The author places the Trichopterygia between the Philhydrida (or Hydra- 
dephaga) and Braclielytra^ commencing with Nossidium and finishing with 
Ptinella j hut no affinities between any of the members of the group and 
Gyrimts or Cercyon are suggested. He recognizes 21 genera and 149 species, 
for the reception of which two families are proposed, viz. PtiliadcB, in which 
the elytra are not truncate, and TricTiopterygidoi, in which the elytra are trun- 
cate. In discussing the general anatomy of the group, the following obser- 
vations occur : — the mandibles are ribbed transversely on the outer edge, and 
are capable of being turned inwards towards the gullet, so that the ribbed 
portions crush the food inter se. Gillmeister has figured the elongate curved 
process of the stipes as the mandible, at the articulation with which is always 
a large transparent membranpus plate, used in clearing a space for the above- 
mentioned inverted use of the mandibles* (a somewhat analogous formation 
occurs in Dinopsis). The maxillary palpi are 4-jointed. Du Val’s account 
of the buccal organs is the most correct, Erichson’s being hopelessly obscure, 
and Qillmeister’s founded on mutilated objects. There are no biarticulate 
setae at the apex of the ligula. The peculiar structure of the wing is retained 
throughout all the genera except Nossidium and Motschidsldum. The 
‘‘ knobbed bristle ” said to exist between the claws is apparently mythical. 
The larvae of Trichoptcryxj Pteryx, and Ptinella (all that are known) resemble 
each other closely. 
The following synonymic and other observations occur, amongst others : — 
Ptenidium formicetoriim, Ktz., is adopted for myrmecophihim, Mots., nec 
Allib. ; P. apicale, Gillm., Er., terminahy Hald.,=ei?r?«escc«5, Msh. ; P. Icevi- 
gatum, Woll., nec Gillm., is named hruch’, p. 82 ; P. nitidum, Dris., nee TTecr, 
is named hrisouti, ibid.; AdeclUty Mots., = yfc/n?mm, Mots.; A, transrersah'y 
VjY.y — houdieriy ; A.JHiforme, A\\h6,mediterra7ieum, coarctatuniy 
Hal.; Ptiliimi canadensey Lee., =co//am (errore hollani)y Mann. ; MicruSy Matth., 
nee Mots., is named /S';mcn<s, p. 110; TrieTiopter\jx silhermanniy^ ^m}&&Yy-=^ 
littoralisy Thoms., nec Mots., = variolosuniy Muls. ; T. chevrieriy Matth., nec 
Allib., is renamed poweriy p. 118; T. insidarisy Mann.,=s/if7cewsis, Mots.; T. 
convexuy Matth., = convexiusculay Mots. ; T. cursitansy Matth., nec Nietn., = 
fuscipennisy Hald. (1848), nomen prius usitatum ” [but not so appearing in 
the dated list of all prior described species given by the author], is named 
dohrniy p. 144 ; Astatoptcryx laticollisy Perris, nee Mann., is named p>ci-risiy 
p. 154 [but laticolliSy Mann., is a recognized TrichopteryXy and Perris’s insect 
is the type on which that author founded his genus, recognized as such by 
Matthews, and differing toto ccelo from Triehopteryx~\ ; Pteryx dimidiata 
IslotQ.y — haltenlumy Lee.; Ptinella proteusy Matth., Heer, $,=7cs- 
tneedy Heer; P. punetipcnncy VMYm.y—dcnticollCy Fairm., P* nigrh'iUisy 
\jae.y—pnllidida, Mots., $ > = Lee.; P. ratishonensisy Gillm., 
Gu(5r., $; P. gracilisy GiMm.y — angustulay Gillm., Myrmicotrichis suhvit- 
tata, Mots., ? = ccquatorialisy Mots., $ . 
* C. Lindemann, Bull. Mosc. xliv. 2, Seances, p. 12, also records this struc- 
ture of the mandibles. 
