3 7 4SONDER-ABDRUCKaus,,Konowia",Bd. XII (1933),Heft 112.

Die Ausbeute der deutschen Chaco-Expedition
1925t26. -Dipters.

XXXVII.

Tipulidae.

(Fortsetzrrg.)

B y C h a r l e sP . A l e x a n d e r
Massadrusetts State College Amherst, Massac,husetts.
(Ifith 2 Figures).

Subfamily Tipulinae.
1. Holorusia laeois Alex.
t914. Holorusia laais Alexander; Ent. News, 25 : 353-354, pl. 15, figs 8and 15.

1 d, 1 g , Paraguay: Trinidad, near Asuncion, August
1925. The type-localitywas Acuncion, collectedby Vez6nyi.
2. Tipula amoenicornis Alex.
1922 Tipula amoenicornrsAlexander; Ent. News, 33 : 210.

1 d, North Argentina: San Jos6, October 7925.
The type-locality was Tucuman, Argentina. I have also
seen it from Santa Barbara, Paraguay, October 77, 1924 (Francisco Schade).
3. Nephrotoma sp., near elegans (Fabr.).
:1805. Tipula elegansFabricius; Syst. Antliatorum, p. 26.

Paraguay: Trinidad, near Asuncion, August 7y25.
North Argentina: Aguarai, June 1926.
Bolivia: Upper Pilcomayo, Muy 7926.
The present material differs from the original description'in a few regards. It is probable that eleganscan only be truly
interpreted following a further study of the type.

Subfamily Linoniiae.
4. Limonia (Geranomgia)

platensfs (Alex.).

7923. Geranomgia platensrsAlexander; Ent. News, 34 : 310-311.

Ch.P. Alexander.

42_ Argentina: Tapikiold, Chaco, Decemberlgzs; San Jos6,October192533 dd, 1 g.
Type-locality: La Plata, Argentina.

5. Limonia (Geranomgia) tibialis (Loew).
1851.Aporosa tibialis Locw; LinnaeaEntomol.,5 :397.

North Argentina: Lapango,Pilcomayo,Septemberlg25; 1 g,
6. Polgmera (Polgmera)

obscura lllcqt.

1838.Polgmera obscuraMacquart; Dipt6res exot., 1, pt. 7 : 65, pl. 8.

North Argentina: San Jos6, October 7925i, 7 g .
Bolivia: Buena Vista, near Santa Cruz d. l. S., August1926; 7 6.
7. Teudholabis (Paratropesa) Iindneri sp. n.
General coloration of mesonotum polished rusty-yellow,
the praescutum with a transverse blacl< girdle before suture;
postnotum and pteropleurite black; fore femora chiefly black,the bases narrowly yellow; mid- and hind femora yellow, thetips narrowly black ; wings with r-m distinct; cell Ist M2 open
by the atrophy of basal section of Mg; wing-apex undarkened;male hypopygium with the apex of each basistyle produced intoa spine.
M a I e.
Length, about 6 mm; wing, 6.6 mm.
Rostrum rusty-brown, about one-third the remainder ofhead; palpi dark brown. Antennae broken. Head rusty-yellow,
the anterior vertex somewhat darker.
Pronotum yellow. Mesonotal praescutum polished rustyyellow, conspicuouslypatterned with black, including the c€phalic-median portion of sclerite and a narrow but complete
transverse girdle placed shortly before the transverse suture;scutum rusty yellow, the center of each lobe black; scutellum
black, the extreme base yellowish; postnotum blael<. Pleura
rusty-yellow, the pleurotergite and pteropleurite abruptly velvety
black; ventral pleurites, including dorsal sternopleurite andmeral region, with a sparse silvery pruinosity. Halteres with thestem blad<, the knob abruptly orange. Legs with the coxae
and trodranters orange-yellow; fore femora driefly blae,k,withabout the basal fifth yellow; mid- and hind femora yellow,
with not more than the distal fifth blad<; fore tibiae c}iefly
black, the central portion vaguely brightened ; remaining tibiae
obscure yellow, the tips narrowly blackened; all tarsi blae,k,Die Ausbeute der deutsdrenChaco-Expediti
on 1925!26.Dipt.

43

the central portion of posterior basitarsi vaguely brightened.
lfings (FiS. 1) with the ground-color pale cream-yellow, witha restricted brown crossbandedpattern that is lacking beyond
the level of the cord ; an extensivepost-humeral area in cells

Fig. 1. -I[ing of Teudtolabis (Paratropesa) lindneri sp. n.

C and S", suffusing the arculus; a narrow crossband at levelof origin of Rr, continued acrosswing, widened out in cell M,
the pale larea that separatesthesedark marks in cell Sc narrow;a third band extends from stigma to vein Cr,, darker in regionof stigma; veins yellow, dark brown in the clouded areas.
Venation: S", ending about opposite one-third the length ofthe long R", S", opposite origin of latter; Rr at end of Rr;cell Rs relatively small; vein Rs about two-fifths Rr+r+4, vein-flonger
Rf a littlethan vein Rr+r+n; cell lst M2 open by theatrophy of basal section of M3; m-cu close
to fork of M.
Abdominal tergites blae.k,each witha yellow caudo-lateraltriangle; sternitesyelO
alow. Male hypopyo aagium (Fig.2) with thebasistyles produced
caudad beyond thelevel of apices ofdististyles; apex ofeaclr basistyle proFig. 2, - Male hypopygium of Teudzolabis
duced into a slender(Paratropesa) lindneri sp. n.
blael spine, basad ofSymbole: b-basistylc; id-inner dististyle;whieh are long silky
od-outer dististyle; t-tergite.

44Ch. P. Alexander.

setae. Outer dististylewith a spinous projection at iust before
midlength.
H a b. Bolivia.
H o l o t y p e , 6 E l Cairo, August 1926 (E. Lindner).
Typ. in the collection of the Wtirtt. Naturaliensammlung,Stuttgart.
I take great pleasurein dedicating this unusually distinct
Teucholabis
to Dr. Erwin Lindner, collector of this interestingseriesof Chaco Tipulidae. The speciesis most nearly allied toT. (P.) fasciolaris (u(lied.), os is shown by the accompanyingk"y to the Neotropicalspeciesof the subgenus.
A K " y t o t h e N e o t r o p i c a l S p " c i e so f
Paratropesa.
1. Wings with crossvein r-m obliterated by the fusion of veins
R6 and M,+r.
2
Wings with crossvein r-m distinct.

2. Entire thorax blue-black.
Thorax with at least the scutellum yellow.

534

3. !ilings with

distinct brown crossbands, most evident atcord and as a broad apex; cell Rr relatively large, vein R4a little longer than Rr+o; vein R3 oblique; abdominal tergites with yellow caudal margins. (Brazil, Peru).

collaris (O. S.)')
Wings with the darkenedpattern very faint, only slightly
differentiated from the ground-color; cell RB relatively
small, vein R4 about two-thirds Rr++; vein Ra short andmore erect; abdominaltergiteswith only caudo-lateralangles
yellow. (Colombia).
dtalgbeia Alex.2)
4. Mesonotal praescutum entirely shiny black; wings with ar)arrow brown seam along vein Rr, the remaining patternvery faint; wings with Sc short, S", ending iust beyond
origin of R", S", a distance before this origin about equal
to vein R3. (Venezuela).
singularis (Schlo.)t)r) Paratropesq collaris O. S.; Berlin. Ent. Zeitsdrr., 31 : 190; 1887.
) Teudtolabis (Paratropesa)dtalgbeia Alex. ; Encycl. Entomol,, Diptera,

4 z 18-19 ; 7927.
3l Pardtropesa singularis Schiner; Novara-Reise, Diptera, p. 46, pl. 2,tig. 2; 1868.

Die Ausbeute der deutschenChaco-Expedition1925126.Dipt.

45

Mesonotal praescutum reddish yellow, with three broad
black stripes; wings with a narrow brown seanralong c o r d ;wing-tip broadly brown; wings with Sc longer, S", almost

praeusta (0, S.)n)
opposite origin of Rs. (Mexiko).
5. !(fings with cell lst M2 open by the atrophy of the basal
section of M.1.
6lfings with cell lst Mr closed.
7
6. \Uings with tip infuscated; mesonotal praescutum polished
black, the interspaces narrowly yellow; legs yellow, fore
femora brownish at tips, (Brazil).
fasciolaris (Slicd.)t)
Wings with the tip unmarked; mesonotalpraescutumyellow,
with a transverse blael<girdle before suture, in addition toa median area at cephalic portion of sclerite; fore femora

blaeJ<,
only the basesnarrowly yellow. (Bolivia).
Iindneri Bp. rr.
7. Wings with cell lst M2 long and narrow, fully one-halflonger than vein Mr beyond it; wing-apex broadly.dark
brown, cells C and Sc dark brown (Venezuela).
amoena (Alexandor).6)\(lings with cell lst M2 broad, subequa'lin length to vein
Ms beyond it; wing-tip not darkened.

8

8. !0ings with vein R2 subequal to Rr+r+n; stigma broad;narrow but conspicuousbrown seams along cord and outerend of cell lst M2; Rs elongate,only gently arcuated; headextensively reddish brown; abdominal tergites brownish

black, the caudal ends broadly yellow. (Brazil).
jactans (Alox.)?)Wings with vein R2 at end of Rr, obliterating Rr+r+n;wings practically immaculate, except for the dark brownstigmal triangle, the darkened seams along cord and outerend of cell lst M2 very narrow and indistinct ; Rs shorterand rnore strongly arcuated at origin ; head black; abdominal tergites brownish yellow, with a narrow black
median line. (Argentina).
xgstophanes (Aler.)8){)

Paratropesapraeusfc O. S.; Biol. Centr.-Amer.rl, p. 1 : 8 ; 1886.
) Limnobia fasciolaris Vied. I Aussereur. zweifl. Ins., l, suppl. r 552,
pl. 6 b, f i g . 1 1 ; 1 8 2 8 .
u) ParatropesaamoenaAlex.;Trans.Ent. Soc.London, 1922z 47-48;1922.
7 ) Paratropeza
jactans Alex.; Ent. News, 24 : 447; 1913.
')
Paratropezaxgstophanes
Alex.; Canad. Ent., 53 : 165-166; t921.

46ch. P. Al exander: Die Ausb. d. deut.Chac.-Exp.1925!26.
Dipt.

8. Trimicra pilipes (Fabr.)' v8r.
1787. Tipula pilipes Fabricius ; Mantissa Insecta, 2 z 324,

North Argentina: Lapango,September1925i 2 d d.
9. Erioptera (Erioptera) cladophora Alex.
1920. Erioptera (Mesocgphona) cladophorc Alexander; Canad. Ent., 52 t 142

North Argentina: Lapango, December 1926; San Jos6,
October 1925i 2 iniured specimens.
10, Stgringomgia americana Alcx.
1914.StgrtngomgiaamericancAlex.; Trans. Amer. Ent. Soc., 40 z 2Sl, pl. 4,fig. 1.

Bolivia: El Cairo, August 1926; 2 specimensin poor cordition.
11. Toxorhina (Toxorhina), noar mendosa Alex.
1983. Toxorhina (Toxorhina) mendosaAlex. ; (in prese).

Argentina: San Jos6, Pilcomayo, October 1925i I g.
The type is from Campo Bello, Minas Geratb, Brazil.
Males are necessaryfor correct determination in this as well as
most other genera of Tipulidae.