Genera insectorum

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FAM. ENDO 'IYCHIDAE

Horraeo. Annam. Sumati A. Sumnti M.

Tenasserim; Juva: Malay Pentia;

Characters: Forna orbicular to long - ovat, moderately ConveX Eudon chris to gibbo his, suinace glabro uS, rarely with exceed ingly smali and widely spaced bri siles. In ner iobe os maxillae s hori and acuminate, not fringed. O uter iobe sub membra notis in the smaller fornas, heavi ly sciero tiged in thelarge r. Ligula subquadrate to olonga te, not iobed at si des. Labial palps with last joint longer than broad and tapering broad and flat tened in sonae species of Eudou chus). Mandi bie heav3 , bis id at ii P. Prono tum H ithout a stridulatory membra ne on iis front margin, iis basal sul Cus rarely evident, iis laterat Sulci s mali and puncti forna. Prosternum i allier broad to very broad. l he meta sternat foveae , justbeliind the naiddie coxae, so characteristic of the other sub families are to be found only in a se ut species of Endon chus. Externat sexuat leatures a re unknown excepi in a few species of Euclea)ius, in Whicli themate has the under sui face of the abdomen bi Carinate. Delimitation of tho genera of this subia mi ly is made difficult by the in tergi ad ing tornas os thegenera Deilichius, Bolbo morphus and Eucleatius. The oppe a rances of the geno typi C species of the three

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COLEOPTER A

genera a re mari sed ly different an i s mali structural dissimilarites Can be found but the threes groups are connected by intergrading forins. Perhaps the most judiciolas Course Nould be to consider Bolbomorphusa subgenus of Eucteanus. Geographical distri huti Ori: Palaearcti C. Indo-Malayan and Nearcti C regions.

KEY TO GENERA OF ENDO MYCHINAE.

Because of the indecisive nature os certain Daturos of Ch plicolus and X to ui cotes these two genera are included in the keyὶ.

l. GENUS EN O MYCHUS PANE ER

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brotis or, in a iew Species, with Very fine bri Siles, Spars ely place l. Prono tu in xvith or xvi thout a Lasal sulcus, lateial sulci evident but Shori. Elytra ovat. Prosternuin moderately broad, produced poste lior lybeyond the front COXse and rounded at apex. Mesosternum square, stat. Antennar hali or more ilianhalf as long as body, non e of the joinis much elonga te, joint S 0-II forming a narro , loo Se and Scarce lyssat tened club. Mandi bie s hori, bifid at apex and with a sinali internal tooth, thus apponi ing trifid. Maxillar3 palps with the terminal joint Sub- triangular or i a Pering to varii lip and minute ly truncato. On the lalter type of Palse the Propo sed genera CFanaures Gortia in and Comion chus were based, D ut asArrow has aptly said the distinctions are difficuli due to many cases of intermediate nature. Labialpalps with end joint longer than broad And subacuminate. Geographical cli Stributior Europe, Asia, NOrth America .

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COLEOPTER A

Cit. P. I O.

Patria λ

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FAU. ENDO MYCII ID E

2. GENUA CYCLOTOMA MULSANT

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long, the Club narro and scaro ely flat tened. The other antennal joinis may be quadrate or so me halelongate Gibbiger C sit i). Ligula narrow at base a litile expanded toward apex and truncate or feeblyro unded. Labial palps with end joint sub cylindrical. Mandi ble oleit at apex. Maxillary palps withen d j Oint tapet in g, truncate. Prosternum very broad, reaching to abo ut the hind margin of the front

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, . lndia. Philis P in CS.

Nias l.

4. GENUS SOLEO MOR PHUT GOR HAM

CharacterS : Long ovat in forna. pronotum gently Conve X, iis front an gles produc ed and sub a Cuminate, laterat Sulci stiori, basal sulcus obsolete. Elytra strongl3 Conve X, a litile broader at base than Prono tum, then marked ly exlian ded to or belli nil in id ille the nce rounded bellin d; the apices sonae times a litile produce l. Humeri prominent. Legs long, se mora hard lyCla Vate. Scutellum transverse, ovat. Prosternum Stightly Surpa SSing the front coxae, Very broad, slightly rounded at APOX. MeSOSternum fiat. transverse. Maxilla Cith both

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II 8

COLEOPTER A

Geographical distribution : Eastern Asia. Genotype : Bolboni orphus gibbosus Gorham.

T. GENUE EUCTE ANUS GERSTIECHER

Geographical distribution : Northeria India, Hurma, Tibet, Nepai. Oenotype Eucleanus coelestinus Gersiae Cher.

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FAM. ENDO MYCHIDA

Nepai; Formosa Z

N. Indin.

These a re very fexu in number and ali in amber. I 'hile for sonae of thel nown specimens Placernent in the Endomychidae is certain, o thers have been referreii here bucause of sonae cine particular Character Whi Ch by no means argueS Siron gly Such PlaCement. Oi particular interest is Paussus cruciatus Dat man hicli is the geno type of the recent genus Trochoi deus. In his catalogueos 101o Cfilii attribu ted the species to Madagascar but accor ling to Arro v Fauna Ur. India : Coleop. Erotyl. etc. p. loa in the locali ty iro in Ghicli ille

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COLEOPTER ACATALOGUE OE FOSSIL ENDO MYCHID E

TROCHOIDE IN E

AOOENOUM GENERA INCERTIE SEDIS

TI 'o genera Which have been placed in the Endomychidae have not been treated in the Di ego ingSynopSi S. One of these inelius, Was described by Mulsant, together with CFolotonia, under the head ingos Coleopteres Trimeres, Tribu des Laevi colles. Gerstaecher cloes not mention the genus and the Onlysubsequent referen ce to it is in C si hi 's catalogue of 19io, whicli merely records Mulsani s descriptions.

GENUA OPETIUS MULSANT