1886.] 199 



A HUNDRED NEW BRITISH SPECIES OF DIPTERA. 



BY G. H. VERRALL, F.E.S. 



{Continued from p. 182). 



21. Enipeda nuhila, Schum. : probably the Limnohia tenella of 

 AValker (Ins. Brit. Dipt., iii, 300). The species is not uncommon, 

 occurring in my garden, and I have also caught it at Ljmington, Bon- 

 church, Three Bridges, and in the Isle o£ Arran. As to the true 

 Goniomyia tenella, I must leave that and its allies at present, as I seem 

 to have from four to six species under it, 



22. Molophilus appendiculatus, Stseg. : seems to occur all over 

 north and central Europe ; it is very common, but usually confounded 

 with M. ocliraceus, Mg., which is however less common. iVs I under- 

 stand them, these two species are clear yellow or ochreous with 

 yellowish wings and the frons almost all yellow. 



23. M. propinquus, Egger : 



This species and the next differ from the last two by being larger and more 

 obscure in colour, especially on the abdomen ; both also have a darkened frons — in 

 M. propinquus quite blackish-grey, and both have more smoky-yellow wings. In 

 M. propinquus the upper lamella of the male genitalia is broad and seems blunt at 

 its end, it is in fact almost square at its upper inner angle, being only a little pro- 

 duced so that the two lamellfe usually touch there, at tlie lower inner angle of these 

 same lamellae are short black hooks, and below and between them the long thin 

 black sickle-like appendages, the lower lamellae in both species run out in a narrow 

 hairy process on each side. 

 It is common. 



2i. M. hijilatus, n. sp. : this seems to me to be the commonest 

 British species. 



It is allied to the last, but very distinct in the male genitalia ; it is also still 

 more obscure, the abdomen being usually entirely dai'kened except at end, and one 

 female is almost all hrov>n\»\i-grej (= M. ffriseus, Mg.?), the frons is however a 

 little more reddish, the pleurae are brown rather than ochreous, and the antennae 

 are usually more darkened, with often the two basal joints more determinately 

 yellow, also what Zetterstedt calls the lower fork of the wing veins is distinctly 

 shorter than the upper, while in M. propinquus they are nearly equal j the male 

 genitalia are most distinct from any species, in that they have only two very long 

 black sickle-like middle appendages, no other portion being black, but these two 

 being very prominent; the upper lamellae are smaller than in M. propinquus, but 

 bear at their upper inner angle a pair of shortish rather thick processes, which 

 usually lie close together (just as the lamellae usually touch in this part in M. pro- 

 pinquus) ; there are no black hooks at the lower inner angle. I do not think this 

 can possibly be Meigen's M. griseus, as that must surely be more grey, and seems to 

 have been recognised by Zetterstedt. Walker's IHrioptera grisea is certainly not a 

 Molophilus at all, according to his table, and his type specimen in the Eritish 

 Museum is a true Erioptera. 



