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Catalogue of the dipterous insects collected at Singapore and Malacca cover

Catalogue of the dipterous insects collected at Singapore and Malacca

Chapter 11: Gen. Ctenophora, Fabr.
By Alfred Russel Wallace
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About This Book

A systematic catalogue of dipterous insects collected at Singapore and Malacca, listing families, genera, and species with concise morphological descriptions, measurements, and precise collection localities. Entries note diagnostic characters, colouration, and intraspecific variation, and record altitudinal and geographic occurrences when known. Numerous taxa are described as new, accompanied by comparative remarks and occasional figures or plates to aid identification, while brief comments indicate wider distributional links to specimens from neighboring islands and regions.

Fam. TIPULIDÆ

Gen. Limnobia, Meigen.

Div. I. Meig. Zweifl. i. 131. pl. 5. f. 5.

5. Limnobia leucotelus, n. s., mas. Atra, alis nigricantibus, maculâ discali limpidâ, margine postico subcinereo, apice albo.

Male. Deep black. Wings blackish, with a discal limpid spot; posterior border slightly greyish for rather more than half the length from the base; tips white. Length of the body 6 lines; of the wings 12 lines.

Singapore.

6. Limnobia plecioides, n. s., fœm. Atra, thorace pallidè rufo, alis nigricantibus.

Female. Deep black. Thorax pale red. Wings blackish. Length of the body 7 lines; of the wings 12 lines.

Singapore.

Div. L. Meig. Zweifl. i. 132. pl. 5. f. 4.

The structure of the wing-veins in the above division is almost, but not quite, identical with that of the following species.

7. Limnobia dichroa, n. s., fœm. Atra, antennis ferrugineis basi apiceque nigris, abdomine luteo, basi fasciâque latissimâ posticâ nigris, pedibus testaceis, femoribus tibiisque apice tarsisque nigris, alis fuscescentibus costâ testaceâ.

Female. Deep black. Antennæ ferruginous, black at the base and at the tips. Abdomen luteous, black at the base and with a very broad black band beyond the middle. Legs testaceous; tarsi and tips of the femora and of the tibiæ black. Wings brownish, testaceous at the base and along the costa. Length of the body 9 lines; of the wings 16 lines.

Mount Ophir.

Gen. Ctenophora, Fabr.

8. Ctenophora chrysophila, n. s., fœm. Lutea, abdominis apice nigro, pedibus pallidè luteis, femoribus apice tibiis tarsisque nigris, alis flavescentibus apice nigris margine postico interruptè nigricante.

Female. Bright luteous. Abdomen black towards the tip. Legs pale luteous; tibiæ, tarsi, and tips of the femora black. Wings yellowish, black towards the tips, irregularly and interruptedly blackish along the posterior border. Length of the body 8 lines; of the wings 16 lines.

Singapore.