34 XYLOPHAGID^E. 



Genus II. SUBULA. 



SUBULA, Mgrle. ; Mg. zw. 12. 15 (1820) ; Mq. Nemotelus p., Dg. 

 Xylophagus p., Mg. ; Fb. ; LI. ; Ztt. 



Corpus angustum. Color niger ; pictura saepe rufa vel flava. Palpi 



biarticulati ; articulus secundus longus, cylindricus. Antennae subfili- 



formes ; articuli primus et secundus aquales ; flagellum longum, sub- 



cylindricum. Alse areola analis clausa, retracta. 



Body narrow, cylindrical, thinly clothed with short hairs. Colour 



black, often partly red or yellow. Labrum short, thick, with an obtuse 



tip, snorter than the labium. Palpi biarticulate, longer than the labium, 



curved upward ; first joint slender ; second long, cylindrical, as if annu- 



lated. Labium short, cylindrical. Antennae porrect, approximate at the 



base, diverging ; first and second joints of equal length ; second cyathi- 



form ; third and following forming an almost cylindrical flagellum. Scu- 



tellum semicircular. Wings finely pubescent. Alulae entire, very small. 



Halteres uncovered. Abdomen rather long. Tibiae armed with spurs. 



Male. Eyes approximate, but not contiguous. Abdomen cylindrical. 



Fern. Eyes remote. Abdomen obconical, with a tubular-jointed 



oviduct. 



1. maculata, Fb. s. a. 65. 3 (1805); Mg. ; Mq. ; Ztt.; Steph. ! 

 b. e. pi. 46. fig. 3. Nigra, antennis ferrugineis basi piceis, thoracis 

 lateribus flavo-vittatis et quadrimaculatis, scutello flavo, ah's sublimpidis, 

 abdominis basi maculis duabus et segmentorum marginibus posticis 

 flavis, pedibus Jlavis nigro-cinctis. Long. 4^; alar. 10 lin. 



Cylindrical, black, shining. Head clothed above with tawny down, 

 and in front with hoary down ; a scapula above the antennae. Eyes large, 

 prominent. Mouth luteous. Antenna ferruginous ; first joint pitchy. 

 Thorax with two yellow spots on each side ; the second pair forming 

 an interrupted band ; a yellow scapula on each shoulder, forming a 

 ridge, which widens towards the base of the wing; a yellow spot 

 beneath the latter on each side. Scutellum yellow. Wings almost 

 colourless. Halteres luteous. Abdomen with the hind borders of the 

 segments and a large spot on each side of the base yellow. Legs yellow ; 

 tips of the femora, of the tibiae, and of the tarsi, and the whole of 

 the fore tarsi, black ; metatarsus very long. This species resembles 

 the Ctenophorce in colour, and the Xylophagidce seem to connect the 

 Brachycera with the Nemocera. 



Very rare; inhabits the New Forest, Hampshire. In Mr. 

 Stephens's collection. (E.) 



2. varia, Mgrle. ; Mg. zw. ii. 14. 5 (1820) ; Mq. Nigra, tho- 

 racis lateribus scutelloque fulvis, ah's subcinereis, ventris segmentorum 

 marginibus posticis pedibusque fulvis. Long. 3-4 ; alar. 6-8 lin. 



Black. Body slender, thinly clothed with tawny hairs. Antennae 

 slender, much more than half the length of the thorax. Thorax with 



