336 Tachinidae. 



specimen of this variety in the coll. B. B., labelled monochaeta; the 

 specimen was a male, but had, like the female, one orbital bristle; 

 Dr. Villeneuve further possesses a second male from France of this 

 very peculiar variety. 



2. Ph. nemea Meig. 



1824. Meig. Syst. Beschr. IV, 340, 173 {Tachina) et 1838. VII, 256, 40 

 (Exorista). — 1862. Schin. F. A. I, 467 [Exorista). — 1891. B. B. Denkschr. 

 Akad. Wiss. Wien, LVIII, 329 (Blepharidopsis). — 1907. Kat. palåarkt. Dipt.III, 

 276. — 1921. Baer, Zeitschr. f. angew. Ent. VII, 152. — 1924. Stein, Arch. f. 

 Naturgesch. 90, 6, 90, 2. — Tachina praetervisa Zett. 1844. Dipt. Scand. III, 

 1123, 121 et 1859. XIII, 6114, 121. — Tachina straminifrons Zett. 1844. 1. c. 

 III, 1143, 142. — 1907. Kat. palåarkt. Dipt. III, 254 {Exorista). — Parexorista 

 brevifrons B. B. p. p. 1891. 1. c. LVIII, 321 et 327. — 1907. Villen. Wien. Ent. 

 Zeitg. XXVI, 251, 25. — Catachaeta depressariae B. B. 1891. 1. c. LVIII, 329. 

 — 1907. Villen. 1. c. XXVI, 250, 13. 



This species is very similar to the preceding, but seems certainly 

 to be distinct by some few characters. The orbits are more yellowish 

 than grey. Frontal bristles less descending, to about insertion of 

 arista. Vibrissæ not or slightly ascending. Wings with apical cross- 

 vein concave and rather sloping, and first posterior cell ending near 

 apex of wing. 



Length 5 — 8 mm. 



Ph. nemea is somewhat rare in Denmark ; at Copenhagen, Amager, 

 Gentofte, Dyrehaven, Hareskov, at Fure Sø, Lillerød, Grib Skov; 

 on Langeland at Lohals, and on Funen at Veflinge and Hoffmans- 

 gave; the dates are "/, — ^"/g. The species is known as parasitic on 

 Calymnia affinis, Thyatira hatis, Ahraxas grossulariata and perhaps 

 Taeniocampa incerta, and on the non Danish Phlogophora scita and 

 Depressaria Heydenii. Some of my specimens are bred from Mamestra 

 oleracea, Calymnia trapezina, Thyatira batis, Ahraxas grossulariata 

 and Eurrhypara urticata, the Mamestra., Calymnia and Eurrhypara 

 not formerly known as hosts for it ; the imagines came from ^^/^ to ^V?- 



Geographical distribution: — Middle Europe; towards the 

 north to southern Sweden. 



Remarks : I have examined a type specimen, a female, of T. prae- 

 tervisa Zett. and fmd it identical with the present species. In Kat. 

 palåarkt. Dipt. praetervisa is, perhaps by an error, cited under Hartigii 

 Mik et Wachtl, while the authors suggested it as identical with 

 nemea. Probably Hartigii is likewise nemea., as stated by Stein 1. c. 

 Of T. straminifrons Zetterstedt mentions a Danish specimen ; in our 



