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from

A PECULIAR

TYPE

OF

PHORIDAE

FROM NATAL.

BY

CHARLES

T. B

RUES.

UNTIL

within

the

last

decade,

the

Phoridae

of

the

Ethiopian

region

were

practically unknown,

but

during

this

short

period

considerable

interest in

the

group

has

developed among

a

number

of

entomologists,

and many

African

forms

have been described.

Most

of these

belong

to

extraordinary apterous types, although

several of the less

spe-cialized

genera

have been

found

in

widely

scattered

parts

of

the

conti-nent.

These

few discoveries have shown the extreme interest

attaching

to

the Phorid fauna of this

region,

and

I

have endeavored

to include

them in the

present

short summary,

together

with

the

description

of

an

interesting

new

genus from

Natal

recently

sent to me

by Mr.

Ernest

E. Austen

of the British

Museum.

Twelve genera

are now

known

to

be

represented

in

the

Ethiopian

region,

several

of

them very

closely

allied, and

probably

not

actually

generically

distinct,

but

all

are

included in the

tollowing

table.

Key

to the Ethiopian Genera

of

Phoridae.

1. Wingsfully developed 2

Wingsmuchreducedin size andvenation,orentirelyabsent 5

2. Third veinin wing furcatenearthe tip

Alhiochaeta.

Thirdvein simple, not furcate 3

3. Head of normalform,withsloping front 4 Head produced and squarely truncateabove the

antennae,

forming a

frontal shield Coryptilomyia.

4. Anteriorfrontal setae proclinate, hind tibiae with distinct spurs

Puliciphora,male.

Anterior frontal setae absent, hind tibial spurs minute; wings more

hairy than usual Chonocephalus,male.

5. Abdomen of normal

form,

species oftencockroach-like, apical segments

terminal in position 7

Abdomen greatly swollen, the last segments very small and directed

forward under

the.

basal ones 6

6. Antennalaristapubescent Termitoxenia.

Antennal aristalooselyplumose Termitomyia.

7. Wings of considerablesize, thoughmuch atrophied; noocelli; proboscis

long, geniculate Psyllomyia.

Wings very smallorentirely

absent;

proboscis shortorwanting 8

Contributionsfrom theEntomological Laboratory of the BusseyInstitution,

(2)

34

Psyche

[February

8. Abdomen with distinct segments, indicated by4-6 dorsal platesor

by

evident constrictions 10

Abdomenwithall thesegmentsfusedinto asingle plateor intotwo 9 9. Abdomenwithtwo segments,the first

short,

the secondlong.

Thaumatoxena.

Abdomen entirelyunsegmented Termitodeipnus.

10. Ocelliabsent 11

Ocelli present Puliciphora.

11. Abdomen entirely membranous Wandolleckia.

Abdomenwith chitinousplates 12

12. Body flattened, oval, cockroach-like Aenigmatistes.

Bodymoreconvex,withthe usual tripartite form 13 13. Dorsal abdominal plateswide,crossing the entire width of theabdomen. Chonocephalus.

Dorsal platesmuch reduced in width Cryptopteromyia.

Coryptilomyia gen. nov.

Female. Wings fully developed; costa long, weakly ciliate; third vein simple,

bare,

neitherfurcatenorswollen atthe apex; first veinlong; fourth veincurvedparallel to thecosta,endingatthe wing-tip afteracoursemuch nearer thecostathan

usual;

5thto 7th veinsdistinct, complete. Head with thevertexprolongedinfront,thensharplydeclivous onthe front whichbears

a raised marginabove, giving the front of the heada

truncate,

shield-shaped appearance. Frontwithout bristlesexceptforanoccipitalrowof fouranda similar series of much more delicate onesjust anterior to these.

Antennae

subovate, withdorsal arista. Palpi short, scarcely bristly; proboscis very

short, almost rudimentary. Bodyveryrobust,themesonotum

broad;

scutel-lum strongly

transverse,

nearly four times as broad as long. One pair of dorsocentralmacrochaetae andsix scutellar bristles in addition to one close to each lateral angle on the mesonotum.

Legs

ratherslender,tibiae without

macrochaetae,hindonesdelicately setulose.

Coryltilomyia armigera sp. nov.

Female. Length 3 mm. Yellowish brown or tinged with

castaneous;

pleuraeandlegsfuscousorpiceous; abdomen almost entirelypiceous,

some-timesyellowishmediallyatthe

base,

thesegmentswithnarrowwhitish

mar-gins. Antennae and palpi bright orange yellow. Head seen from the side lessthan twiceashighasthick, sharpabove then concave and sloping down to the upperedgeofthe frontal shield from whichitfalls off perpendicularlyto

the antennal cavities.

Eyes

large,

bare,

narrowly oval.

Antennae

rather large,

ovate,

withanearlybare aristaaslongasthe head height. Palpi short andstout,withvery delicate bristles below. Ocellilarge,rangedin acurved

row and well separated. Viewed from thefront, the head isabout twice as

broadas high, the margin of the frontal shieldabovealmost semi-circular in

(3)

from

35

conform with the large antennal cavities. Post-ocular cilia very minute. Mesonotumlarge andbroad,considerably wider than thehead; atitshumeral anglesthepropleurae extend far inward,soastobevisiblefromaboveaslarge triangularsclerites, eachwiththe prothoracic spiracle nearitscenter. Lateral marginsofmesonotumwith afringe ofstiff hairs. Mesopleurabelow the root of the wing with three macrochaetae. Abdomen of the usualform,with none

of the segments elongated except the sixth.

Legs

long and quite slender,

theanteriortibim entirelybare,each with amicroscopic apical spur; middle

oneswith afringe of very finesetulae; hind ones witha rowof ratherstrong

Coryptilomyiaarmigera sp.nov. Femule.

A.Wing; B. Side view ofhead; C. Frontviewofhead.

setulaealong the dorsaledge,andasecondonealong the outerside; all four

posterior tibiae withdistinct spurs. Wings of amplesize, hyaline with

fus-cousveins; the costalveinreaching to themiddle,itscilia veryshort; tip of

firstvein twiceasfar from the humeral cross-veinasfrom the tip of thethird;

fourthveinrunningnearlyparallelto the wing margin, formingavery narrow cell and endingbarelybefore the wing tip; fifthsinuous, curving forwardon itsapicalhalf; sixthnearlystraight; seventhcurved,closeto the wing margin. ttalteres dark brown.

Two

specimens

rom

Durban,

Natal,

South Africa,

1909.

(B.

Marley.)

Type

in the British

Museum

of Natural

History.

Phora

cochlearipalpus

Speiser.

Berliner

entom.

Zeitschr., 52,

p.

146.

(1908.)

Amani,

German

East

Africa.

(4)

36

Psyche [February

Aphiochaeta

braunsi

Brues.

Entomological

News,

1907, p.

391.

Aphiochaeta

xanthina

Speiser.

Berliner

entom.

Zeitschr., 52, p.

148.

Psyllomyia

testacea

Loew.

Wiener entom.

Monatsschr.,

1, p.

54.

Puliciphora

africana

Brues.

Ann.

Mus.

Nat. Hungarici,

5, p.

410.

Chonocephalus

kiboshoensis

Brues.

Ann. Mus. Nat. Hungarici, 5,

p.

410.

Wandolleckia

cooki

Brues.

Cape

Colony.

(1908.)

Kamerun.

(1857.)

Cape Colony.

(1907.)

German East

Africa.

(1907.)

German

East

Africa.

Trans.

American

Entom. Soc.,

29, p.

392.

(1904.)

Liberia.

Wandolleckia indomita

Brues.

Ann. Mus. Nat. Hungarici,

5, p.

412.

(1907.)

German East

Africa.

Cryptopteromyia jeanssoni Triigrdh.

Zool. Jahrb.

Atbh. f.

Syst.,

28, p.

229.

(1909.)

Natal.

Aenigmatistes

africanus

Shelford.

Journ.

Linn.

Soc. London, Zool.,

30, p.

151.

(1908.)

Victoria

Nyanza.

Thaumatoxena

wasmanni Breddin

&

BSrner.

SB.

Gesellsch. naturf. Freunde

Berlin, 1904, p. 87.

Natal.

Termitodeipnus

andreinii Silvestri.

Redia,

3, p.

356.

(1906.)

Eritrea.

Termitoxenia havilandi

Wasmann.

Zeitschr. wiss.

Zool.,

67, p.

601.

(1901.)

Natal.

Termitoxenia

jaegerskioeldi

Wasmann.

Results

Swedish

Exped.

Egypt

&

White

Nile,

13, p.

16.

(1904.)

Uganda.

Termitomyia

braunsi

Wasmann.

Zeischr,

wiss.

Zool.,

67, p.

611.

(1901.)

Orange

Free

State.

Termitomyia

mirabilis

Wasmann.

Zeitschr. wiss.

Zool.,

67, p.

610.

(1901.)

Natal.

lhora camariana

Coquerel.

Ann. Soc. Ent.

France,

6, p.

189.

(1848.)

Madagascar.

This is

not

recognizable

from the

description and

may quite probably

not

belong

to

this

genus.

(5)

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