250 TANYPUS CRUX. 



Fam. Chironomidae . 



3. Tanypus Crux , Wied. 



2. Crux ^ Wied. Anal, entom. 10; id., Auss. Zweifl. 

 I. 19. 2; — T. pardalis, Dol. Nat. Tijdschr. Ned. Ind. 

 X. 405. pi. 6, f. 1; ~ T. ornatus, Dol. ib. XIV. 385. 

 pi. 7, f. 1. 



A male from Mount Ardjoeno : East Java (Hekmeyer). 



The antennal plume is yellow with a brown tip. The 

 two species of Doleschall quoted above must be regarded 

 as synonyms of T. Crux. Doleschall describes T. parda- 

 lis as having dark legs and unspotted wings, and T. or- 

 natus as having a black scutellum : but the characteristic 

 markings on the thorax and the brown tipped antennal 

 plume are distinctly visible in his figures of the two spe- 

 cies. In fact , in that of T. pardalis , the legs are not 

 very dark , and what Doleschall calls the black scutellum 

 is perhaps the black spotted metauotum , against which the 

 narrow and pale scutellum hardly appears, but yet is 

 more or less visible in the figure. As to the markings 

 of the wings , in the specimen before me, they are not very 

 clear, which may also have been the case with the spe- 

 cimens of Doleschall so as to have led him to declare the 

 wings unspotted. 



With some doubt I refer to the same species a 9 re- 

 ceived from the same source as the above mentioned cf. 

 The markings on the thorax are quite similar, but other- 

 wise the female differs in many respects. It is a little 

 smaller (2,5 mm.) ; the abdomen is wholly black and the 

 dark markings of the posterior legs are much more extend- 

 ed , the hind femora are almost wholly fuscous ; the wings 

 are more darkly clouded ; in the middle the costa is brown, 

 emitting two half bands of the same colour, the first reach- 

 ing over the middle crossvein , the other at the end of 

 the subcostal vein. 



Notes from the Leyden AJEuseum , "Vol. "VI. 



