Erostrata Savchenko

Kato, Daichi, Tachi, Takuji & Gelhaus, Jon, 2018, Revision of the subgenus Dicranomyia (Erostrata) Savchenko, 1976 (Diptera, Limoniidae) of Japan, Zootaxa 4441 (1), pp. 181-194: 193

publication ID

https://doi.org/10.11646/zootaxa.4441.1.11

publication LSID

lsid:zoobank.org:pub:E8507163-0F19-4BF2-8917-2E6C2C7A53A2

persistent identifier

http://treatment.plazi.org/id/BD535E3E-FFA5-B663-FF6E-81CFFA13F82F

treatment provided by

Plazi

scientific name

Erostrata Savchenko
status

 

Key to Japanese species of the subgenus Erostrata Savchenko 

1. Thorax with pleuron pale yellow on ventral half, much paler than dorsal half ( Fig. 40 View Figure )............... D. yazuensis  sp. nov.

- Prescutum and pleuron pale brown to dark brown ( Figs. 35–39 View Figure )................................................. 2

2. Vertex with silver pruinosity on anterior part; abdominal sternites and genital segments distinctly paler than abdominal tergites; gonostylus with a black spine or lobe near tip ( Figs. 14 View Figure , 26 View Figure ).................................................... 3

- Vertex without silver pruinosity; abdomen uniformly brown to dark brown; gonostylus with many spines or strong setae near tip ( Figs. 3 View Figure , 9 View Figure )........................................................................................ 4

3. Prescutum without a dark stripe; distal half of gonostylus narrowed to subacute tip, ventral surface of apical region without dense fine setae ( Fig. 26 View Figure )......................................................... D. tabashii ( Alexander, 1934) 

- Prescutum usually with a dark stripe; gonostylus stout and reniform, ventral surface of apical region with dense fine setae ( Fig. 14 View Figure )................................................................................ D. reniformis  sp. nov.

4. Male genitalia ( Figs. 20–22 View Figure ) with ventromesal lobe of gonocoxite short and stout, about as long as wide; gonostylus concaved on distal 1/3; paramere with a ridge-like extension on outer margin at base of mesal-apical lobe....... D. submelas  sp. nov.

- Male genitalia ( Figs. 4–6 View Figure ) with ventromesal lobe of gonocoxite slender, 1.5–2 times as long as wide; gonostylus not as above; paramere smooth near outer margin at base of mesal-apical lobe................................................ 5

5. Male genitalia ( Fig. 4 View Figure ) with gonostylus weakly narrowed toward tip, apex truncated...... D. globithorax Osten Sacken, 1869 

- Male genitalia ( Fig. 7 View Figure ) with gonostylus slightly wider distally than at base, apex produced into a small lobe on outer edge.............................................................................. D. globulithorax Alexander, 1924 

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Diptera

Family

Limoniidae